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October 2018 Lighting Journal

Professional best practice from the Institution of Lighting Professionals

October 2018

TELESCOPIC VISION How Tenerife in the Canary Islands has installed ‘astronomy friendly’ streetlights to minimise sky glow LIVING BUILDINGS Anticipating daylight and artificial lighting conditions in a building post-occupancy LOCAL KNOWLEDGE Why the ILP is surveying local authorities to gauge the scope and scale of conversion to LED


The publication for all lighting www.theilp.org.uk professionals

October 2018 Lighting Journal


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October 2018 Lighting Journal





Can human-centric lighting be a viable option for road and street lighting? In an effort to find out, Helsinki in Finland has installed nearly 2km of LED streetlights that change colour temperature during the night, as Nigel Parry explains


The new Well-Managed Highway Infrastructure: a code of practice comes into force this month. Are you ready for its arrival, questions Allan Howard




Pudsey Diamond’s work in breathing life back into Sheffield’s Victorian sewer lanterns sparked so much interest it led to a new heritage retrofit challenge. Chris Angell reveals all



There are few tools available to help lighting designers evaluate and anticipate how a building is likely to be used post-occupancy. Yet, as Ruth Kelly Waskett argues, this can have a significant effect on daylight and artificial lighting



The ILP and Carbon Reduction Technology are undertaking a nationwide survey of local authorities to gauge the scope and scale of conversion to LED. Ian Jones maps out the project


Many of Britain’s coastal communities could do with a bit of regeneration TLC, and innovative new lighting schemes can be one answer. But is our love affair with fairy lights a help or a hindrance, asks Emma Cogswell



A multi-million-pound waterfront regeneration scheme is aiming to breathe life – and light – back into the faded glories of the Welsh resort of Rhyl


Osram is working with NASA to gauge how ‘smart’ horticultural lighting could help to keep astronauts fed and healthy in space, whether on the International Space Station or, longer term, for a manned mission to Mars




Scotland is embracing the Internet of Things (IoT), cars of the future will be IoT hubs and our railways networks will be transformed by IoT, it was announced over the summer. But there is still a job to be done to overcome consumer scepticism




Tenerife in the Canary Islands has installed ‘astronomy friendly’ streetlights designed to minimise sky glow A Danish lighting company is creating tuneable hospital and care home lighting schemes that can help with the interpretation of test results as well as improve patient care and recovery, explains Benny Nielsen

Light School will be returning to London’s Surface Design Show next February, and the ILP will once again be backing this important opportunity for lighting professionals to showcase their expertise


Francesca Barnes on Mary Guzowski’s book The Art of Architectural Daylighting


Registration is now open for next month’s LuxLive, and Charlotte Hendy looks at what’s in store for lighting professionals this year


YLP chair Sofia Tolia reflects on her year at the helm before handing over to John Sutcliffe next month, while John outlines his hopes for the year ahead



The Teide Observatory, Tenerife, under a spectacular night sky. Signify (formerly Philips Lighting) is installing an innovative ‘astronomy friendly’ street lighting system on the island. Picture credit Daniel Lopez, IAC


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October 2018 Lighting Journal

Editor’s letter

Volume 83 No 9 October 2018 President Colin Fish IEng MILP Chief Executive Tracey White Editor Nic Paton BA (Hons) MA Email: nic@cormorantmedia.co.uk Editorial Board Tom Baynham MEng MA (Cantab) Emma Cogswell IALD Mark Cooper IEng MILP Kevin Dugdale BA (Hons) IEng MILP Graham Festenstein CEng MILP MSLL IALD Nathan French John Gorse BA (Hons) MSLL Alan Jaques IEng FILP Lora Kaleva MSc Assoc IALD Gill Packham BA (Hons) Nigel Parry IEng FILP Paul Traynor Richard Webster Graphic Designer Sacha Robinson-Forster BA (Hons) Email: sacha@matrixprint.com Advertising Manager Andy Etherton Email: andy@matrixprint.com Published by Matrix Print Consultants Ltd on behalf of Institution of Lighting Professionals Regent House, Regent Place, Rugby CV21 2PN Telephone: 01788 576492 E-mail: info@theilp.org.uk Website: www.theilp.org.uk Produced by

Matrix Print Consultants Ltd Unit C, Northfield Point, Cunliffe Drive, Kettering, Northants NN16 9QJ Tel: 01536 527297 Email: gary@matrixprint.com Website: www.matrixprint.com © ILP 2018 The views or statements expressed in these pages do not necessarily accord with those of The Institution of Lighting Professionals or the Lighting Journal’s editor. Photocopying of Lighting Journal items for private use is permitted, but not for commercial purposes or economic gain. Reprints of material published in these pages is available for a fee, on application to the editor.


t goes without saying that my preference as editor is for you to be reading Lighting Journal slavishly from cover to cover every month. But if nothing else this month, do take a moment to check out our article by ILP VP Highways Ian Jones on page 24. If you’ve haven’t picked up about it already, Ian’s article outlines what, for me, is a project that could be deeply significant for both the industry and the ILP next year. The ILP, with lighting company Carbon Reduction Technology, is undertaking a nationwide survey of local authorities to try to get a feel for the scope and scale of conversion to LED around the country. Key areas being investigated include how CO2 emissions are being cut as a result, the energy efficiencies gained, the scope for further conversion, the scope for retrofitting, and how local authorities are funding all this work in cash-strapped times. Equally importantly, it is looking at the continuing health – or not – of the local authority lighting department, including the number of lighting engineers being employed by councils and how this picture is and has been changing. The findings are due to be published early next year and, of course, we will bring them to you within Lighting Journal as soon as we have them. The results, even if invariably they will be just a snapshot in time, will be fascinating and informative in themselves. But this research will also be valuable in terms of being able to feed into the wider debate around what can, should and needs to be done about the UK’s decaying street lighting assets and infrastructure. As we highlighted last month, and Allan Howard’s follow-up article in this edition on the new Well-Managed Highway Infrastructure: a code of practice also illustrates, the scale of the challenge around lighting asset management is massive and growing all the time, yet currently very much under the political and public radar. That is something the ILP is well-positioned to try to change. But it is not a debate that is going to be easy to kickstart. The more evidence the ILP – and individual ILP members in local authorities or elsewhere – can bring to bear, the more authoritative and compelling the message and the more (you have to hope) politicians, policy-makers, budget holders and decision-makers will be forced to sit up and listen.

Nic Paton Editor Clarification A picture caption and sub-heading went astray in last month’s article on passive safety (Passive investment, September 2018, vol 83, no 8). The photograph on page 29 should have included a caption explaining that it was illustrating the third crash test reported on page 30, which in turn was missing its heading. To avoid confusion, this should have read: High speed 60mp impact into a 10m steel lighting column installed with standard, planted root section

EXPECTATION OF THE DEMONSTRATION The vehicle will come to an abrupt halt, resulting in significant damage/intrusion with the probability that any occupants would have experienced serious injury or death. BEHAVIOUR The column folded around the car upon impact, almost destroying the complete car.


ILP members receive Lighting Journal every month as part of their membership. You can join the ILP online, through www.theilp.org.uk. Alternatively, to subscribe or order copies please email Diane Sterne at diane@theilp.org.uk. The ILP also provides a Lighting Journal subscription service to many libraries, universities, research establishments, non-governmental organisations, and local and national governments.



October 2018 Lighting Journal

Street lighting



Much work has been done in recent years around human-centric interior lighting. But can human-centric lighting also be a viable option for road and street lighting? To try to find out, and in what is believed to be a world first, the city of Helsinki in Finland has recently installed nearly 2km of LED streetlights that change colour temperature during the night By Nigel Parry



ack in 2012, the city of Helsinki organised a design competition called ‘Lights over Kruunuvuorenranta’ as part of the World Design Capital Helsinki 2012 programme, designed to promote the city’s development through design. Kruunuvuorenranta is a new island residential area of the city overlooking Helsinki city centre from across its bay and being developed on what was the city’s old oil port. Overall, some 10,000 dwellings are being constructed on the site. The lighting masterplan element of the competition was won by architectural practice West8 along with design company Speirs + Major, with a brief to create both a functional lighting plan and to introduce an attractive nightscape as seen from a distance. Within both the proposed landscape and illumination plan, there is a focus on making use of the area’s natural sources in terms of quality of darkness, use of local materials and the site’s heritage. The development’s maritime location has meant the natural scenery and connection with water have been other key areas of emphasis. For example, the waterfront location of the development provides a highly reflective foreground, with a broken, animated reflection of the lit image of the waterfront, in effect almost doubling the perceived quality of light present when viewed from across the water. It has been imperative therefore that light and lighting is minimised and used sensitively across the development to reveal gateways, heritage features and selected neighbourhood lantern pegs.


This emphasis has extended to the development’s street lighting where, among a range of priorities, Helsinki’s city planners wanted to come up with a solution that was sensitive to the location but also would be beneficial to its citizens in terms of function, mood, activities and behaviour during the city’s long winter nights. The result has been an innovative approach, working with us at OrangeTek, to develop a ‘human-centric’ luminaire and road lighting installation that can adequately light the highways and footpaths on the island while also providing a change in the colour temperature during the night. This article intends to outline how this solution has been achieved. First, however, it may be valuable to recap briefly on how thinking has developed in recent years around how our circadian

October 2018 Lighting Journal

p Before

rhythms operate, and the impact this has had on lighting and lighting design. As Professor Russell Foster, professor of circadian neuroscience and the head of the Department of Ophthalmology at Oxford University, explained in his lecture to the ILP during the International Year of Light in 2015, the discovery of a third set of photosensitive cells within the eye has been ground-breaking, both for the scientific and medical professions but also for lighting professionals. This non-visual receptor, or what is known as the intrinsically photosensitive Retinal Ganglion Receptor (ipRGC), is responsible for melatonin release from the pineal gland. Professor Foster and his team were following up on a discovery back in 1923 that the pupils of blind mice still responded to the presence of light. The idea – simplistically – was that, if the traditional rods and cones that provide visual stimulus within the eye weren’t doing the work, something else must be. This led the team to the discovery of the ipRGC which, in turn, led to the linkage between light and the effect it has on our body clock – what we now all know as the circadian rhythm. Further study went on to identify the light conditions necessary to trigger this

‘melanopic response’ within the pineal gland, concluding (again in simple terms) that the blue light we get on a bright summer morning is key to resetting our body clocks and kick-start the day. Many ILP members will undoubtedly be aware that much work in this area has been done on human-centric interior lighting. But this project is believed to be the first time this approach has been attempted within an outdoor highways environment.

p After


The location for the project is a busy arterial route to the island suburb with a twolane highway running parallel to a mixed footpath and cycle path. Helsinki’s city authorities required a minimum average of 1cd/m2 (EN13201-M3) on the highway and 7.5lux(P3) on the cycle/footpath to be achieved at any given colour temperature from 3000K to 5000k. The existing 10m-high columns were positioned about



October 2018 Lighting Journal

Street lighting


35m apart single-sided on the non-footpath side of the roadway. To achieve this performance required some additional work to a standard Ignsi2 luminaire. Firstly, we had to be able to deliver the lighting performance using just the warmer (slightly less efficient) 3000K chips. To do this we used the Osram Square chip with its very high lumen per watt and extremely good lumen depreciation rate, even at higher operating temperatures. A solution of 72 LEDs driven up to 700mA would provide the lumen package. The same arrangement for the 5000K would work even better. This would require a total of 144 LEDs with lens to be housed with twin drivers. To achieve this in a reasonably lightweight, compact lantern we chose to double up the LEDs per lens so as to have a twin-set arrangement. Thus, a new lens was required to accommodate the twin LED chips and provide the lighting as required. In addition to the unique configuration and colour change, dimming was also required during the night when traffic is very low, and thus energy savings could be made beyond that achieved by changing from the existing from 250watt high-pressure sodium lamps. The configuration agreed for the first installation is outlined below, including with options for dimming levels and times.


• Yearly night – 23:00-00:00 is 25% • Night – 01:00-05:00 is 50% • Early morning – 05:00-07:00 is 25%


• Late evening – 23:00-00:00 is 40% • Night – 01:00-05:00 is 60% • Early morning – 05:00-07:00 is 40% On top of this, there are the following colour temperatures during the following hours: • Early afternoon – 14:3017:00 is 5000K • Late afternoon – 17:00-17:30 gradually shifting to 3000K • Early evening – 17:30-21:00 is 3000K • Evening – 21:00-21:30 gradually www.theilp.org.uk

shifting to 4000K • Late evening – 21:30-23:00 is 4000K • Yearly night – 23:00-23:30 gradually shifting to 5000K • Night – 23:30-05:30 is 5000K • Early morning – 05:30-06:30 gradually shifting to 4000K • Morning – 06:30-08:00 is 4000K • Late morning – 08:00-10:00 gradually shifting to 5000K When running the design simulations, it was noted that the 5000K option, slightly over-lit the road when compared to the 3000K. Thus the 5000K driver maximum output was choked back by about 5% to keep the light levels similar. The initial approach was to have the control pre-set and to run the same every night. However, as the development progressed a more flexible approach was sought and, to be able to deliver this, wireless control was deemed the best solution. The C2Smartnode was already the choice for Helsinki and thus utilised for the lantern. Although the smart node usually only has one DALI output, it needed to control two DALI drivers. The answer was to have two separate DALI addresses controlled from the single C2 output. Some off-site testing was also carried out to ensure the functionality was comprehensive and that there was easy control. The lights were installed during the summer months, together with the C2 CMS system on to the existing lighting infrastructure. The installation and testing was easy and straightforward, with the shifting colour temperatures seamlessly blending to the required outputs. Of course, as the nights in Helsinki at this time of year are still short, we do not yet have a full sense of how things will play out, although the initial reaction from residents is very good. The real test will be the first winter. But it is hoped that the lucky residents of Laajasalontie in Helsinki (the road where the lights are initially being tested) will be some of the first people in the world to benefit from this human-centric approach for their street lighting. Nigel Parry IEng FILP is principal at OrangeTek

October 2018 Lighting Journal

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October 2018 Lighting Journal

Asset management


This month the new Well-Managed Highway Infrastructure: a code of practice comes into force. Given a worrying lack of awareness about it generally within the industry, are you ready for its arrival? By Allan Howard



ell-Managed Highway Infrastructure: a code of practice was originally published by the UK Roads Liaison Group (UKRLG) back in 2016. But it is only now – this month – that it is coming into force. It will supersede the three existing codes: • Well-lit Highways: a code of practice for highway lighting management (2004); • Management of Highway Structures (1999); and • Well-maintained Highways: a code of practice for highway maintenance management (2005) www.theilp.org.uk

As was highlighted in last month’s edition of Lighting Journal, the new code of practice (CoP) has been developed through consultation with practitioners, professionals and user groups and was approved and published by the UKRLG in October 2016. It was amended in March 2017 with the aim of providing authorities with a two-year transition period. It is available as a free download via the UKRLG web site www.ukroadsliaisongroup.org and the transition period has now all but expired. So are you ready for the arrival of this new code?


The CoP is a change in approach. Whereas the current documents contained 222 recommendations between them and is not risk based, the new code focuses on understanding the highway asset condition and delivering a risk- and asset management-based service built upon 36 recommendations. The CoP is not prescriptive but permits the level of service to be tailored to local requirements through a strengthened risk management approach. This approach

October 2018 Lighting Journal

should facilitate efficiencies in the service as well as support business cases for investment such as lighting column replacement programmes. This in turn brings challenges, not least a new mindset whereby all process need to be documented, evidence of why a process is considered suitable and the identification of the appropriate skills and competencies of those involved in all stages of the maintenance delivery. These aspects are very important. Whilst authorities have no duty to light the highway, they do have the following obligations: • The Infrastructure Act 2015 requires the strategic highway authority to take all reasonable steps to ensure the continued availability and resilience of the network; and • The Highways Act 1980 requires: – Section 41 (Duty to maintain), to maintain public highways to a reasonable standard; and – Section 58 (Special defence in actions for damage for non-repair) which provides a defence in that ‘the authority has taken such care as in all the circumstances was reasonably required to which the action relates was not dangerous for traffic’ To deliver a safe and well-maintained highway the CoP requires evidence of sound engineering judgement to be linked to the principle of risk management that suits local needs, priorities and affordability of the authority. The CoP does not set any minimum or default standards but does provide case studies and illustrations of good practice and therefore provides some guidance for consideration. This approach provides an auditable process by which the service can be evidenced and thus support sections 41 and 58 of the Highways Act. Perhaps a key consideration in these days of litigation.

proach can be developed to ensure it is maintained and operates as required. The structure of the CoP is divided in four parts: • Part A – Overarching principles • Part B – Highways • Part C – Structures • Part D – Lighting There are then 36 recommendations covering the requirements of: • Strategy and planning • Lifecycle delivery • Organisation and people • Asset management decision making • Asset information • Risk and review The overarching principles cover everything that is common to the management of the whole highways infrastructure, including policy framework, strategy and hierarchy, network resilience, performance management, sustainability and so on. The following sections then address specific requirements of each of the three services, such as asset condition and investigation levels, inspection and assessment recording, programming and priorities. The core approach is network resilience or, as the code puts it, ‘the ability of the community, service, area or infrastructure to detect, prevent and if required to withstand, handle and recover from disruptive

challenges’. This requires an understanding of the physical resilience of the infrastructure, an understanding of management options, prioritisation as well as the risk tolerance of the authority. It is not the intention here to look at all of the recommendations and requirements of the CoP. But considering risk and resilience, the following recommendations are applicable (the numbers reference the recommendation within the CoP): 5 – Risk-based approach 8 – Information management 14 – Risk management 18 – Management systems and claims 20 – Resilient network 21 – Climate change adaptation 23 – Civil emergencies and severe weather emergencies plans 25 – Learning from events When considering the lighting service, the following are perhaps core considerations: 5 – Consistency with other authorities 7 – Risk-based approach 9 – Network inventory 10 – Asset data management 11 – Asset management systems 13 – Whole life/designing for maintenance 14 – Risk management 16 – Inspections 36 – Minimising clutter


The following quotation is often attributed to former New York mayor Michael Bloomberg: ‘If you don’t know what you have, you can’t manage it.’ And this is very true of your lighting inventory under the CoP. It is important that an authority’s inventory is accurate and contains the information required to understand the condition of the asset. This is so that the right ap-

p Inspection and testing to determine equipment condition



October 2018 Lighting Journal

Asset management

• Monitor performance, review and improve; • Ensure alignment to council’s strategic objectives; • Review and update the Highways Infrastructure Asset Management Plan (HIAMP); and • Gain executive approval

p Figure 1. An example of a risk management process, based on ISO 31000 and taken from the CoP


As of October, the CoP looks to the authorities to be able to record how the service is delivered and that the processes are being followed. This requires an understanding regarding: how has resilience of the network been considered and what associated risks have been taken into account in determining the level of service proposed? All of this will require evidence to support that the processes are right for the authority and that the processes are being followed. For some authorities, this approach may not be new to them but how the level of service has been decided upon, the processes and the evidence requirements may yet need to be detailed. For others, this approach may have required considerable work to be ready for October.

Worryingly however, based upon recent workshops run by the ILP for the development of TR22: Managing a Vital Asset: Lighting Support, the majority of those attending were not aware that the CoP had even been published, let alone its requirements or that it comes in this month!


So, given that concern above, what are the core areas that an authority needs to be considering, and how might evidence be provided? The main steps to align to the CoP require the authority to: • Identify gaps/areas for development/ change; • Identify the process and sources of evidence;

How this might work in practice is illustrated in the flow chart in figure 2 below, using risk management as an example. This highlights how through the CoP it is possible to demonstrate the process, how these should be supported by suitable narratives that summarise the requirements for each cell within the flow chart, and how you also need to be detailing the evidence required. This, in turn, should include service levels, skills and competencies of those undertaking the task(s), service and performance levels as well as standards. Well-Managed Highway Infrastructure: a code of practice is not a document lighting professionals or authorities should feel threatened by; but it is one they need to ensure they are up to speed on – and fast if they’re not already. Are you code-ready? If not, you need to be. Allan Howard BEng(Hons) CEng FILP FSLL is technical director at WSP Well-Managed Highway Infrastructure: a code of practice is available to download from the UK Roads Liaison Group, at www.ukroadsliaisongroup.org/en/codes/ The ILP’s updated TR22: Managing a Vital Asset: Lighting Supports, which is designed to complement the new code of practice, is available to be downloaded from www.theilp.org.uk

p Figure 2. An example flow process for risk

management under the new code of practice



October 2018 Lighting Journal

Heritage lighting




Pudsey Diamond’s experience of using crashresistant bollard technology to breathe life back into Sheffield’s Victorian sewer lanterns sparked so much interest from other local authorities that it prompted the company to investigate a new challenge: how to create a heritage LED retrofit module that evokes traditional gas lanterns? By Chris Angell


October 2018 Lighting Journal


s regular readers of Lighting Journal may recall, Sheffield’s network of sewer lanterns is unique in that they were designed to ventilate the sewers, and any light produced by them was purely a by-product. We told the story back in October last year of how we restored and brought back to life this largely obsolete yet much loved part of the city’s heritage (Victorian Valued, October 2017, vol 82 no 9). When the completed units were viewed by the public they were hailed a great success and their aesthetics were a testament to Victorian style and engineering. Exhibiting an example of the sewer lantern immediately provoked comment and questions from other local authorities considering the best way to upgrade their own heritage lantern stock to LED. But the question was: could the LED/ mantle arrangement be upscaled from the glow required in a sewer lantern to sufficient light output to light a street, replacing 50W, 70W or even 150W SON lamps? This, in what might be considered part two of the story, is how we addressed this further issue and challenge: how to create a ‘gas’ heritage lamp suitable for the modern urban streetscape?

p The Sheffield mantles

q Photo of LED on plate arrangement



The original replacement mantles used in the Sheffield sewer lantern project were produced in a 3D printer using Photo Stereolithography. They were small and could be printed without any supports, ensuring an even spread of light around the mantle. To provide enough light output to offer true illumination required a bigger LED, and therefore a bigger mantle. So the first task in deciding if a mantle-based luminaire was feasible was to build a bigger mantle. The mantle, we were pleased to discover, upscaled very well, printing reliably, so the project to create a new ‘gas lamp’ using LEDs began in earnest.


The choice of the LED was driven by output capability, size and colour temperature range. The need for a high-power LED reduced the possible efficiency of LED lighting, and this was further affected by the low colour temperature required (gas burning in a mantle produces light at about 2700K). However, these efficiency reductions are only comparatively small against other LED


October 2018 Lighting Journal

Heritage lighting

choices. Against SON and other light sources, these LEDs still provide a big reduction in energy requirement. Increasing the size of the LED to produce enough light inevitably introduced the need for efficient thermal management. The obvious way to do this was to make sure the LEDs were mounted on a large aluminium plate with heatsinks behind each LED. The need for mantles in this design precluded the conventional array of LEDs; each mantle has just one LED, albeit a four-chip device. A lens was placed on top of the LED and the mantle over the lens. This arrangement could be made with different numbers of LEDs/ mantles depending upon the maxi-

mum light output required. One LED could handle in excess of 12W, so putting, say, five LEDs and mantles on a board would look about right and produce 60W. As these are LEDs, this would be the equivalent of up to 120W of SON lighting. Testing this arrangement produced good results and the design dissipated the heat generated very well but there were a number of problems with this approach. The first and most important was that it simply didn’t look right. The mantles were mounted on a flat plate, but gas lamps of course were never built like this. The gas had to be distributed to the burners through a manifold, and the mantles were hung off the ceramic burner, about 20mm down from the manifold. Without these features the mantles sat high in the luminaire, almost out of sight and did not replicate the aesthetics of a gas lamp.

the LED be taken through a ‘light-pipe’ to the mantle, so allowing the mantle to be lower in the luminaire? Measurements showed that, while this worked, the optical path was not very efficient, which reduced light output and would have caused premature discolouring of the light-pipe. So, could the LED be moved away from the aluminium plate on to a support (which would replicate the gas burner) on to which the mantle would be fitted? Could the support be mounted on to a manifold that would contain the heatsinks? After research into the way heat is carried through various forms of aluminium, a method of carrying the heat to the heatsinks and ensuring LED operation well within its capabilities was developed. Much was learned about thermal interface materials along the way, and the final mantle module design was complete.



In order to resolve this, further experiments were required. Could the light from

16 t Example photometry

As a small engineering company, Pudsey Diamond Engineering has been frequently called upon to design and manufacture ‘light shields’ for existing (and in some cases new) street luminaires. It is quite likely that, with the upgrade to LEDs, heritage style lanterns will also need some form of light shield. But, having designed a lighting module that is designed to be looked at (in both daylight and at night), it would rather defeat the object if the light shield obscured the mantles.

q The mantle internal reflector, which is designed to provide the required photometry


October 2018 Lighting Journal

So, instead, a shield within the mantle (which is also a reflector) was designed and the combination of mantle, LED and reflector as a patent was applied for. This arrangement allows both the reduction of light behind the reflector, and an increase of light forward of the reflector. With an indexed system of rotating the mantle and reflector assembly, it is possible to choose where light goes and where it does not. The reflector has been designed to provide a shaped light pattern offering the possibility of photometries to light different streets and pathways. Multiple reflector shapes are now available. With the ability to rotate the mantle on site, the patterns can, if required, be adjusted to precise requirements. In fact, each mantle can be rotated in 10° steps providing 36 variations from one module with one reflector type; this rises to nearly six trillion when eight modules and two reflectors are used! This variability of the optical path led to the product’s name: Varoptic.


One of the two primary reasons why any authority would want to switch to LED lighting is, of course, energy saving (the other is low maintenance). During the course of developing Varoptic, three parts of the system had to be considered when calculating the efficiency of the luminaire. The first has already been touched on: the LED. As a high-power device with a low colour temperature, efficiency is already somewhat lower than for conventional LED arrays operating at 4000K. Next is the optical path, which consists of the reflector (very high efficiency ~ 99%),

the mantle (similar to a lens ~ 85%) and the outer bowl (~90-94% depending upon material used, but common to all upgrade solutions). Finally, there is the driver. Efficiencies of drivers are very high (typically quoted at (95%) but this only applies when the output is close to the maximum capability of the driver. As the output reduces (through dimming – any type, DALI, profile etc), the efficiency falls and at the same time the power factor of the driver falls too. While drivers include active power factor control (a requirement for all drivers greater than 75W), this works best at the highest outputs and reduces in efficacy as the output falls. This combined effect can cause significant efficiency reductions at lower powers.

q The sewer lantern


Modern lanterns (even those that are old but have been upgraded to use LEDs) have a light output ‘shape’ which is designed to illuminate the street in an even pattern. To achieve this, reflectors and lenses direct the light to where it is needed and away from where it is not. The planning of streetlights is done in software often overlaying the light ‘shape’ on a road map. While retrofit lamps are constrained by the column position being already fixed, the light output level and pattern can be chosen to meet street lighting levels. This is done through the use of photometric files – information about the intensity of light from every angle around a luminaire that can be ‘projected’ onto a virtual map. These photometric files are commonly based on simulations of the optics within the luminaire and on the


q The ‘Clamshell’ (open and shut), which provides the IP66 seal


October 2018 Lighting Journal

Heritage lighting

characteristics of the LEDs presented in manufacturer’s datasheets. Varoptic, however, presented a problem. The design of the mantle resulted in a shell perforated with more than 1,500 holes of varying shape, and the cross-section of the plastic around those holes is also variable. The result of this was that conventional simulation software could not simulate all the possible light paths created by the mantle and no results were created. The way around this was to have actual measurements taken of the light source (LED, reflector, mantle) in an integrated spherical goniometer, and for those measurements to be used as the basis for simulation. The simulation can then be used to refine the design of the light source and real measurements taken again. This is an iterative process which can be much slower than simulation alone. But it was the only way the mantle and reflector assembly could be successfully measured and photometric files produced. Subsequent simulations can be produced very quickly without the need to constantly refer to ‘real’ measurements.



There are several well-known driver manufacturers, and Varoptic can accept a variety from different sources. In general, these drivers offer a DALI interface for use in CMS systems and autonomous profiles for where CMS is not required or is impractical (using a photocell). In addition to these we took the decision to design a proprietary driver called FrugalDrive. When CMS is not used this offers local remote control to provide adjustment of brightness, upload of a selected profile, adjustment of dusk and dawn switching times (if a Pudsey Diamond photocell is used) and download of logged internal data. This is done through the use of Databoll, which was developed for use with the solar-powered bollard that started the whole development of Varoptic.


There has been much discussion within the ILP and elsewhere about CE marking of retrofit luminaires. CE marking requirements are defined within European standards but (unfortunately) allow room for different interpretations. One thing that most manufacturers do agree on, however, is that, at the very least, the module replacing the old gear tray must be CE marked. To be fit for purpose this module must be sealed against www.theilp.org.uk

Mantle LED




u The finished Varoptic mounted in a traditional heritage lantern, in this instance at Exeter Quayside

moisture to a declared IP rating. To that end, Varoptic has been designed for ease of installation and maintenance while providing an IP rating of 66 through the use of a double-hinged ‘Clamshell’ design. One hinge provides access to the mantles and LEDs while the other allows checking or replacement of the driver. Upon closing the Clam, the unit is once again sealed to IP66.


Early trials were carried out with one county council to provide feedback on operation, reliability and hopefully some feedback from the public. While there has been little direct feedback, members of the public have been seen photographing the lanterns that have been upgraded with Varoptic, which is hopefully a good sign. The trials have been a great success. Other areas have also now installed trial units, and we have received requests for quotations for a considerable number of units. Orders have now been received and Varoptic is in full production! Therefore, keep looking up and, when you see a working gas lamp, perhaps it will actually be one of our energy-efficient LED Varoptic units! Chris Angell CEng MIET is chief electronics engineer at Pudsey Diamond Engineering

t An early arrangement with the LED mounted on a flat plate

October 2018 Lighting Journal

Daylight in buildings



BUILDINGS www.theilp.org.uk

Lighting designers have an array of metrics at their disposal to help design for daylight. But there is little at the moment to help designers evaluate and anticipate how a building is likely to be used post-occupancy, despite the fact this can have a significant effect on daylight and artificial lighting conditions By Ruth Kelly Waskett

October 2018 Lighting Journal

Photography by John Cairns t This page and

overleaf: The Blavatnik School of Government at the University of Oxford, with lighting design by Hoare Lea. Hoare Lea undertook a full daylight study to ensure daylight penetration was maximised, while minimising solar gain. Additionally, motorised blinds were integrated within the façade system to provide maximum comfort and flexibility within the building. Teaching spaces are located around the atrium, ensuring daylight reaches into lecture theatres. Dividing walls made of clear glass and internal courtyards with skylights bring in daylight to work and study spaces, creating a warm, comfortable and open environment


aylight metrics are an essential part of daylight design. They enable us, as designers, to predict daylight levels, to estimate the energy demand of artificial lighting, and to compare the effectiveness of different design solutions. We now have an array of metrics at our disposal to help us to achieve these aims, ranging from relatively simple tools such as daylight factor through to more sophisticated climate-based metrics. Daylight factor is essentially a geometric calculation that indicates the openness of the building to the sky. It evaluates sky light rather than direct sunlight, which is evaluated separately. Nonetheless, its familiarity and intuitiveness mean that daylight factor is still widely used in building design, despite the availability of other methods.

Climate-based metrics give us the opportunity to analyse spaces in terms of actual illuminance levels, which include the contribution of both sky light and direct sunlight. As the outputs are given in terms of illuminance levels rather than abstract indices, climate-based metrics give a more accurate basis upon which to predict energy use. However, they can lack the suppleness of daylight factor when there is a need to compare design options quickly. If used correctly, these metrics have the potential to facilitate the design of successful buildings. But, even if the calculations suggest that daylight levels in the building will meet or exceed the required standards, there is no guarantee it will be a success in terms of daylight once built. As we get into the nitty-gritty of design,

it is all too easy to forget these metrics are not reality; they are approximations of what is likely to happen in the finished building. Even climate-based models are limited because they are based upon a weather file which may or may not represent the actual weather conditions in a given year. Like any model, these metrics rely on a number of assumptions and approximations about the behaviour of light, sky conditions, window construction and material properties. Their strength is as a design tool, but should they also be used as a post-occupancy evaluation tool? In my opinion, the answer is ‘no’. For many years, lighting researchers have tried to link the predictions of lighting metrics with the experience of occupants in real buildings, often with very mixed results. Take daylight glare as an example: over the past few decades of research, several indices have been produced. But attempts to link these indices with the experiences of humans in real buildings have had limited success.


Among many case-specific factors, it turns out that what a person can see through the window is just as important as the brightness of the glare source. The psychological and physiological impact of lighting conditions upon human beings can rarely be represented in purely numerical terms. How we react to lighting conditions is a function not only of the conditions at a moment in time, but also factors such as the effect of the lighting conditions we have experienced since we woke that morning, how we have been sleeping lately and how we are feeling. The fact that these metrics do not describe human experience also limits our ability to convey our design intent or compare different design options in a language that clients can truly understand. We need to be able to explain what an average daylight factor of 2% or an illuminance level of 300 lux feels like. The key thing omitted from any daylight model is the human occupant. This is largely a practical necessity, since human behaviour is notoriously difficult to model. A person’s interactions with shading, for example, are governed not just by the need to control daylight, but also by privacy and even aesthetic considerations. Occupants may place objects, such as indoor plants, in front of windows. They may use windows as an extension of walls as a vertical surface on which to display paperwork – a common www.theilp.org.uk


October 2018 Lighting Journal

Daylight in buildings

practice in schools, for instance. They may cover sensors or manually override a lighting control system out of sheer frustration with its automated behaviour. A person with atypical needs, perhaps because of a health condition for example, may need to adapt their environment in ways that have not been anticipated in the design. How people use a building clearly influences the effectiveness of the design concept and, despite the best intentions of the design team, occupant behaviour can compromise the building’s daylight performance, affecting energy use and occupant health and wellbeing.



Clearly, we need to start spending time in the buildings we design once they are complete and fully operational, so that we can observe and measure the as-built reality. This is not a service many clients will fund, though this is changing with initiatives such as ‘Soft Landings’, the open-source framework developed by the Building Services Research and Information Association and the Usable Buildings Trust to address and smooth post-occupancy issues. Clients are beginning to see the value of extended engagement of the design team to ensure the building performs as intended. However, daylight presents unique


challenges for post-occupancy evaluation. For example, moment-in-time spot measurements are not sufficient to tell us about the cumulative experience of occupants over long- and short-term periods, which we know affects their health and wellbeing. Furthermore, attempting to compare measured daylight levels or artificial lighting energy use with that predicted by our building models is a costly exercise which is unlikely to yield sensible answers. This is the case whether daylight factor or climate-based modelling is used. The measurement of daylight factor in real buildings is frankly questionable, since it assumes a theoretical overcast sky (the CIE overcast sky, which has a zenith three times the brightness of the horizon, and is fully symmetrical about the zenith) which does not occur in reality. It is, at least, possible to take simultaneous illuminance measurements in the interior and exterior under a fully cloudy sky, which may give an answer that has some relationship with calculated daylight factors. The measurement of annual daylight illuminance, however, is even more problematic, as it requires a grid of measurement points in an empty room for an entire year and is unlikely to align with the predictions of the daylight model,

since the actual weather conditions in a given year will not match those of the climate file. To make progress, I believe we should develop a suite of new tools whose sole purpose is to evaluate occupant experience of daylight (and artificial lighting) conditions, and thus the performance of the building with respect to health and wellbeing. These tools are not to be confused with those that help us to design buildings. But they would help us to relate to them, so that post-occupancy data could be fed back into the design process. Our current daylight metrics do not account for occupant behaviour and individual needs, and therefore are not fit for purpose as post-occupancy evaluation tools. Too many buildings designed with good intentions are not fulfilling their potential because of the unforeseen realities of the occupied building. If we can devise ways of evaluating the occupant experience of daylit buildings, these findings could benefit future designs and enable the design community to make real progress in creating successful buildings which are energy efficient and promote health and wellbeing. Ruth Kelly Waskett PhD CEng MCIBSE FSLL is principal daylight designer at Hoare Lea

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October 2018 Lighting Journal

Street lighting

LOCAL KNOWLEDGE The ILP and lighting company Carbon Reduction Technology are undertaking a nationwide survey of local authorities to gauge the scope and scale of conversion to LED and to try and get a feel for the health and continuing existence of the local authority lighting department


By Ian Jones


s most local authority lighting engineers may well be aware by now, a nationwide street lighting study was launched in August by the UK lighting company Carbon Reduction Technology (CRT) in partnership with the Institution of Lighting Professionals. But for those who have not picked up this news over the summer, the study has involved reaching out to every local authority in the UK with a panel of questions designed to provide an accurate picture of the current status of its local authority lighting. The aim is to generate a well-informed evaluation of what the industry will look like by December 2020. One point to emphasise to ILP members is that, while CRT is a commercial company, there is no intention on CRT’s part to gain any commercial benefit from this survey. Its role is purely to assist the ILP and members through bringing its expertise in this area to bear. Some of the key questions we are aiming to answer are: • How many tonnes of carbon are being saved per year by converting to LED and www.theilp.org.uk

by implementing dimming and part night regimes? • By converting to LED, how much have local authorities been able to reduce their energy expenditure on a regional and national scale? • What percentage of street lighting remains unconverted and what sort of scope does that leave for further reductions? • Has the availability of funding schemes such as Salix been a major supporting factor in the national upgrade to LED?


We hope the study data will play a big part in raising awareness about the important work being accomplished by local authority lighting professionals in hitting both local and national carbon emissions targets. In 2014, my local authority (Cheshire West and Chester Council) street lighting accounted for nearly 25% of our public asset carbon emissions. As highlighted in last month’s edition of Lighting Journal, we have just gone through a very successful

switch to ‘heritage’ LED street lighting that has helped to reduce our carbon emissions significantly. If you consider that most LED upgrades can facilitate an emissions reduction in the region of 60% to 70%, that will equate to a huge reduction in emissions across the UK. That is a figure local authority lighting engineers should be very proud of.


Another key part of the study is focused on the popularity of retrofitting over replacing. It is of course not always possible to retrofit a lantern, particularly if the condition of the housing is unlikely to match the operational life expectancy of the new gear tray. However, where retrofitting is possible and the relevant CE marking certification can be achieved, it can provide a significant saving in the cost and carbon footprint of

October 2018 Lighting Journal

Image - Carbon Reduction Technology: Chester Project

p New LED streetlghts in Chester, where the ILP’s VP Highways Ian Jones is based. The ILP is co-producing a survey looking at the current status of local authority lighting


the upgrade and the waste generated. With this in mind, the study will also therefore be gauging the current condition of UK streetlights and assessing the ratio of replacement to retrofit which has already been carried out.


Part of my role as VP Highways is to encourage ILP membership within all local authority lighting departments, if indeed such departments still exist! When I first joined the Institution in the late 1980s, local authority engineers made up 98% of our core membership. Today, this figure is down to less than 20% of our total membership. A sign of the times may be the number of local authority lighting departments that are being outsourced and swallowed up by large consortiums. This asks the question:

is there still a need for a local authority lighting engineer? My view is ‘absolutely’. Locally based lighting engineers add a wealth of value to both their department and the industry. Typically, the ‘noble lighting engineer’ working within their local council tends to have an excellent understanding of the political aspects and inner workings of their local authority along with a good knowledge of the area communities. In-house engineers usually also tend to live and work within the same authority, which furnishes them with a sense of pride and ‘ownership’. My hope as VP Highways is to reintroduce the ILP and YLP to the local council network and encourage local authorities to use the ILP and YLP as a platform for their lighting departments to build on. Therefore, as part of the study, we’re

going to be tallying up the number of lighting engineers employed by local authorities across the UK, in an effort to gain a better understanding of how the industry is changing and evolving. We hope, in turn, this will give us a picture of what sort of opportunities are available in local government lighting for engineering graduates. The results of the survey will be published as a freely available report, with a breakdown of figures, and a regional league table – and will also be published here in Lighting Journal. We hope to be releasing our finding by early 2019. So, watch this space. Ian Jones is the ILP’s Vice President Highways and principal lighting and traffic signal control engineer at Cheshire West and Chester Council www.theilp.org.uk

October 2018 Lighting Journal

Lighting coastal communities


ENDING? Many of Britain’s deprived and decaying coastal communities, it is very clear, could do with a bit of regeneration TLC, and innovative new lighting schemes can be one answer. But is our love affair with fairy lights a help or a hindrance?


By Emma Cogswell


or half of my life I’ve split my time between London and the very British Georgian seaside town of Weymouth. It has a population of just over 52,000, the bulk of whom are over-50s, and its economy is very much driven by tourism and care homes. Weymouth has a magnificent beach with creamy fine golden sands that are perfect for building sandcastles and a bay stretching around in an arch, providing safe swimming in the blue waters. The esplanade has a deep promenade punctuated by Victorian wrought iron and timber-covered seating shelters, allowing day-trippers the excuse for an ice cream while they survey the view. Paradise you might think? Well, no. The reason is there has been something of a war raging within Weymouth in recent years, and it’s about – of all things – fairy lights. Let me explain. Back in 2012 Weymouth and Portland had their chance to shine on the big stage when they were chosen to be www.theilp.org.uk

the host for the sailing at the 2012 London Olympics and Paralymics. The town duly busied itself with preparations and its old fairy lights where taken down and replaced with lasers. But, as the Dorset Echo reported on 30 May, 2012, this decision sowed the seeds of the battle to come. ‘Seven 16m-high columns with lighting projected from the promenade over the beach and into the sea, will be officially switched on at 9.30pm. ‘Each column will be a different colour and each will include a different vertical coloured light within the structure of the column. The new system is replacing the strings of “fairy lights” which adorned the seafront for generations, prompting anger among residents who claimed the traditional resort atmosphere was being killed off. ‘The lasers have also suffered delays while extensive testing has been carried out. They are programmed to change over time, moving vertically and horizontally in

October 2018 Lighting Journal

circular motions with split beams. The experience will also vary depending on weather and lighting conditions each night. ‘The lights start half an hour after sunset and will go on and off every six minutes through the evening and each time there will be a different pattern of lights,’ the local journalist wrote. Scroll forward to 2018 and the lasers have come to the end of their life and now need to be replaced. Weymouth residents have seized on this as their chance to get ‘their’ fairy lights back. The result has been a petition of more than 1,000 signatures calling for them to be reinstated. However, consultancy firm Tonkin Liu, in conjunction with engineers W&PBC, is proposing instead a new £200,000 scheme of ‘promenade artistic lighting’, primarily comprising lit programmable columns that will be attached to existing columns. While this scheme would certainly be eye-catching, and could even in time become something of a lure for tourists and visitors to the town, it has (perhaps unsurprisingly) been met with fierce local resistance. To get a feel for the scale of the local feeling, you only have to go on to Facebook. Here is one comment that sums up the anger of many residents: ‘Perhaps if the council hadn’t wasted thousands of pounds on ridiculous follies in the past, and never-ending consultation costs, then they may have been able to have afforded the “fairy lights”. The councillors who have ignored the majority should be named and shamed.’


Irrespective of what happens in Weymouth, there are important lessons here

p Weymouth’s seafront laser show from the 2012 Olympic Games. But the loss of the town’s fairy lights as a result has caused local anger. Left: Queen’s Walk on London’s South Bank, where festoon lighting is also a key lighting element

for us as lighting professionals, not least the need to recognise the passion that can be generated when something ‘traditional’ is done away with, however well-meaning, innovative or well-designed the alternative. There is also the wider question of why do so many of us even like the whimsy of fairy lights anyway? We owe it all to Thomas Edison, always known for his skill in creating a buzz around his inventions. He, along with his associate Edward Johnson, had the clever idea of bringing us an electric light display for Christmas in 1882. By way of advertising his incandescent lamps, he decided to string up the lamps all around his Menlo Park, California laboratory compound so that passing commuters could see this yuletide spectacle. Very clever indeed! Festoon lighting was an instant hit and we soon saw the fashion for strings of lights adoring many seaside resorts around the country, with some towns, such as Blackpool, famously turning autumn into spectacles of illuminations. Naturally, there is not a chance that Blackpool’s world-famous illuminations will suffer the same fate as Weymouth’s and be taken down and replaced! After all, at 10km long and using more than a million bulbs, the Blackpool Illuminations certainly draw the crowds. Each year they are switched on by a celebrity and shine all the way from 31 August to 04 November. The Blackpool Illuminations consist of



October 2018 Lighting Journal

Lighting coastal communities

q Blackpool’s

Illuminations. Its festoon and other lighting has become world famous


almost every kind of light display you can imagine: lasers, neon, light bulbs, fibre optics, searchlights and floodlighting. In 2012 there were more than 500 scenic designs and features. There are setpieces made out of wood studded with light bulbs: the characters and objects portrayed seem to ‘move’ by way of winking lights. Three-dimensional illuminated scenes are also popular. There are more than 500 road features attached to lighting columns linked together with festoon lighting. Strings of lights along the structure of the buildings pick out landmarks in luminous detail – you can always make out the Tower and the Pleasure Beach rides in this way.


And it is not just coastal communities that have a love affair with fairy lights. Cityscapes have been proactive in adopting this fashion for decoration, notably in London along the Embankment. A bit over a decade ago, for example, Speirs + Major was invited to undertake the re-lighting of Queen’s Walk on the South Bank. The project between the Oxo Tower and the National Theatre was part of a wider scheme to upgrade the structure of this popular part of the Embankment and improve the public realm, with LED festoon lights a key part of the project, as Mark Major explains. ‘Like magpies, I think we all like a bit of sparkle from time to time. In nature it is the sun glittering on water that delights. After www.theilp.org.uk

dark festoon lighting, whilst often quite kitsch, never fails to excite when done well. ‘We took away the strings of lights between the columns, thereby freeing up the view of the river, and replaced them with hundreds of blue and white sparkling lights in the trees. Whilst a very old scheme, it still endures today. It is great to hear members of the public commenting on it when you are there using words like “magical”. No wonder they are often referred to as fairy lights!’ The furore over of Weymouth’s lit seafront highlights, on the one hand, the crying need for the regeneration of many of our coastal communities. But, on the other, it also illustrates the local passions that can be aroused when practical (often lighting-led) regeneration schemes are duly proposed and the importance for all of us within lighting to work to bring communities with us when planning and implementing these sorts of changes. The fact our coastal communities are in need of a bit of TLC is well-recognised. The government’s Coastal Communities Fund, for example, has earmarked £40m to spend on regeneration between April 2019 to the end of March 2021. In particular, the fund will be targeting bringing at-risk coastal heritage sites back into economic use. Moreover, the challenge is not just around urban decay or declining infrastructure. Last year, the think-tank the Social Market Foundation highlighted that some of the worst levels of economic and social deprivation in the UK were to be

found in our coastal communities. In 85% of Britain’s 98 coastal local authorities, people earned below the national average for 2016, with employees in seaside communities paid about £3,600 less, it concluded. LED festoons or fairy lights are, of course, not the answer to the deep-seated and complex problems and challenges facing our coastal communities. They are, quite literally, only a very superficial, palliative solution. Yet… yet… while I agree it is ridiculous to string up festoons everywhere, let alone see them as anything other than what they are – a little bit of colour to brighten up an otherwise drab night-time environment – many of us do appear to feel an emotional, even passionate, response to decorative elements such as fairy lights within our built environment. Using this most decorative of lights in our toolbox as lighting professionals seems to add just that little bit of ‘extra’ to the lit environment. Creating mood and transformation to spaces, particularly where there can also be an advantage to the economy can only be a benefit, and often at minimal cost. Advances in technology, the miniaturisation of fittings and programmability means the scope to create new lit bits of ‘folly’ are ours for the taking. I for one am optimistic that festoon lighting is about to enter its next phase. Emma Cogswell Assoc IALD is IALD UK projects manager



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October 2018 Lighting Journal

Lighting coastal communities


A multi-million-pound waterfront regeneration scheme is aiming to breathe life back into the faded glories of the Welsh seaside resort of Rhyl, and a new lighting scheme is right at the heart of the project


he Welsh seaside resort of Rhyl is a classic example of a once-popular and thriving tourist coastal destination that has had to cope with changing consumer trends and attitudes, not least the competition of cheap holiday flights to the sun. The town was a popular tourist destination during the 19th century, when Victorian seaside culture was in its heyday but by the late 20th century its fortunes had changed and the area was in serious decline. Seeking to reverse this and re-energise Rhyl, a complete waterfront regeneration plan has been launched by the Denbighshire County Council’s leisure department. A number of projects are currently unwww.theilp.org.uk

By Nic Paton

gral part of all this activity, with LED luminaires from lighting company Anolis being used extensively.

SEAFRONT VIEWING SHELTERS derway across the town, including a new £15m ‘SC2’ waterpark. This incorporates what is hoped will become an iconic ‘Sky Tower’ as well as what is believed to be Europe’s first indoor surfing pool. The town’s Rhyl Pavilion Theatre on the East Parade seafront has also been given a £2.4m overhaul, among a range of other developments and improvements. A new lighting scheme has been an inte-

The first phase of the lighting scheme involved highlighting the sea wall and three new viewing shelters, part of constructions to fortify the flood-prone town, which is regularly lashed by fierce storms during the winter and is vulnerable to tidal flooding. The shelters are built from concrete and Anolis ArcSource 1MCs RGBW were specified for illumination. This single-source LED multi-chip light source produces rich, saturated colours and was

October 2018 Lighting Journal

p Some of Rhyl’s new attractions, clockwise from top: the clocktower, the waterfall gardens, the Sky Tower, and two images of the new Pavilion Theatre. Opposite page: one of the new sea shelters. Photos by Louise Stickland and Leon Lloyd


specified because it is ideal for wet marine locations, being housed in a 316L marine grade stainless steel casing, with a high IP 68 rating. Twelve ArcSource 1MCs were also installed in each shelter, driven by Anolis Outdoor ArcPower units and DMX controlled via a Pharos system, again specified in part because of their ability to cope with an extremely hostile environment.


The next stage of the scheme was illuminating the Sky Tower and Pavilion Theatre façade. One of the priorities for the Sky Tower was that it was evenly and elegantly lit, as it presides, beacon-like, over the SC2. Therefore, 24 ArcSource Outdoor 48MC

RGBW integrals were chosen, as they would produce smooth and even coverage up and down the tower. The fixtures are rigged on a special ring bracket secured around the tower – donut style – at 106ft from the ground, or around two-thirds of the way up. For the Pavilion Theatre, an opaque perspex strip covers 13 Anolis ArcLine Optic 36 RGBW linear luminaires running up the exterior of the tower. A further 12 linear luminaires – six per side – highlight a large panelled area on the venue’s front façade, positioned 15ft apart. ‘We really wanted something different and interesting to light the theatre front, something more than just a conventional wash look, and the breadth of the Anolis range gave us many options including this one, which was just what we wanted,’ ex-

plains Andy Hughes, technical manager of the Rhyl Pavilion Theatre. The bilingual signage (English and Welsh) on the theatre is picked out with two Anolis ArcSource 96 Integral RGBW wireless units (with 13-degree optics) complete with a custom-made ‘top hat’ to stop road glare into traffic. These have then been linked into the same Pharos control system running the theatre façade lighting. ‘My colleagues and I are all very proud to be involved in the regeneration project, and it’s inspirational to see lighting features become a big part of the town, in turn attracting people and encouraging commercial enterprise and activity,’ adds Andy.


October 2018 Lighting Journal

Sky glow Photo by Daniel López/IAC t The Teide Observatory in Tenerife. Sky glow means the Milky Way is hidden from more than a third of humanity, but Signify (formerly Philips) is installing an innovative ‘astronomy friendly’ street lighting system on the island



Tenerife in the Canary Islands is renowned for its clear night skies, so much so that ‘astronomy friendly’ streetlights designed to minimise sky glow are now being installed on the island 32

By Nic Paton


ky glow caused by light spilling from cities into the night sky is an issue for astronomers the world over. The Milky Way is hidden from more than one-third of humanity, including 60% of Europeans and nearly 80% of North Americans.’ So explained Paul Peeters, business leader professional lighting in Europe for Signify (formerly Philips Lighting) in July. His comments – which will undoubtedly have struck a chord with many lighting professionals concerned about light pollution and sky glow – were made following the installation by Signify of new ‘astronomy friendly’ street lighting on the Canary Islands. The company has installed ‘smart’ LED street lights in Puerto de la Cruz, a city on the north coast of Tenerife, that can be dimmed remotely and which use special optics to reduce light spillage that could interfere with nearby observatories. The reason why both astronomers and Signify have chosen this location is because the Canary Islands have some of the clearest skies in Europe. They offer avid stargazers exceptional conditions to observe the stars and, as a result, the islands have become home to several internationally renowned observatories. Indeed, such is the quality of the sky in this region that it is protected under Spanwww.theilp.org.uk

ish law – its Law for the Astronomical Quality of the Instituto de Astrofísica de Canarias (IAC) Observatories. This requires municipalities in Tenerife North and La Palma to take measures to mitigate light pollution, such as banning the use of high-pressure mercury lamps or white light lamps, with a few notable exceptions including lighting for sports and advertising.


The project has involved a total of 6,000 streetlights, which will be managed under a contract awarded to ImesAPI, which has also undertaken the installation. Around 3,000 Philips Luma and 1,500 Philips ClassicStreet luminaires will be monitored, controlled and managed remotely using Signify’s Interact City CMS street lighting management system. On top of this, 1,500 sodium-vapor streetlights from the existing installation will be added to the Interact City using connector kits, as well as the management of 165 cabinets. A pilot project will feature 100 Philips SR luminaires equipped with two system-ready sockets (one on top and one on the bottom of each luminaire) compatible with the internationally accepted Zhaga standard. For the Puerto de la Cruz installation,

the anticipated energy saving is around 65% compared to conventional lighting, Signify has calculated. In terms of what makes this lighting ‘astronomy friendly’, the LED modules deploy similar technology to ‘bat friendly’ LEDs. The luminaires contain special colour optics that create a ‘light recipe’ by filtering out mainly blue light, the part of the light spectrum of course most associated with sky glow. The same optics also shape the direction of the light, therefore giving excellent light distribution, argues Signify. The lights meet IAC standards and are approximately 16% more efficient in lumen output than amber LEDs, which have also been used in the past to mitigate sky glow. ‘For astronomers and those who enjoy starlit nights, the quality of our skies is second to none. We want to preserve this precious resource and at the same time make our streets even safer for citizens and tourists,’ explains Lope Afonso, mayor of Puerto de la Cruz. ‘This latest technology meets the needs of local observatories and will also help us to reduce the electricity we use for public lighting by around 65%, while providing us with options for future smart city services,’ he adds.

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October 2018 Lighting Journal

Lighting in healthcare


A Danish lighting company is creating innovative, tuneable hospital and care home lighting schemes that can help with the interpretation of data and test results, improve patient care and recovery and which can be adjusted to patient and staff circadian rhythms By Benny Nielsen


ilkeborg is a town located in the geographical middle of Denmark and with a population of more than 45,000 people. Its main hospital is Silkeborg Regional Hospital, where we at Lightcare were recently involved in an innovative project to install human-centric circadian lighting that, it is hoped, will actually improve diagnosis and patient care. This article is going to be, in part, about that project. But, as a Danish lighting company that specialises in custom-designed dynamic circadian lighting for the healthcare sector, I also wanted to highlight


some other projects we have been involved in that may be of interest to UK lighting professionals. What we found in Silkeborg Regional Hospital was that, in areas containing screens with test data and imagery (for example X-rays, ultrasounds, MRIs and CT scans), often the hospital staff were finding that traditional white ceiling or wall LED or fluorescent light would reflect or dazzle on the screen. This was making it harder to read this critical data, and even the risk of confusion of the information on the screen. In collaboration with surgeons and physi-

cians, these areas have therefore now been fitted with coloured lights that eliminate shadows and highlight structural detail, vital of course to effective interpretation of such images. Tuneable coloured light scenarios can be implemented from a central touch screen, making it easy for staff to switch between individual preferences. Tuneable lighting is also used in the hospital’s offices, its intensive care unit and five of its operating theatres. In the latter area, this lighting helps to optimise visual conditions and create more comfortable conditions for surgeons, doctors and nurses.

October 2018 Lighting Journal


Also in Silkeborg, we have recently been involved in a project for the Marienlund Care Facility, a 120-nursing and dementia room elderly care facility. This has proved to be our biggest installation yet, and we are, naturally, very proud of the result. Key features here include the fact staff can operate all the lights from their staff iPads. Floor sensors in the bedrooms can be used for ‘wayfinding’, so residents can orient themselves and find their way to the bathroom. Importantly, the system is fully integrated with the facility’s call/alarm system. Therefore, if a resident calls for assistance during the night, the lighting in the room will turn on automatically, at a pleasant level, until a staff member cancels the alarm. A further innovative project has been the renovation of the intensive care unit at Sønderborg Hospital in the south of Denmark. One of the features we have been particularly excited about is that staff now have the ability to customise lighting in up to four time periods, with individual settings available for each individual patient. With this feature, which we call ‘Personal Light’, it is possible to create user-based variations in the rhythm. So, if you are more of a chronotype B person (or most energetic in the afternoon and evening), you can extend the ‘sunrise’ to be more fitting to your personal circadian rhythm.


How, then, does this all work? Our proprietary control system is based on Ethernet and DMX/RDM technology to ensure fast response and quality. The control system is zone-specific, so the light can be adapted to individual needs. In the context of these projects, this has meant operating theatres or patient areas, but it could just as easily applicable to a factory, industrial or office setting. The system has three essential components: our server with our operating system, the area controller and our unit controller. The server (for example perhaps operating from a touchscreen with user interface) is where our programming, user controls and system analysis are conducted from. The area controller, then, is the link between the server and our luminaires. From here we can divide the installation into its different areas, group lamps and enable local control from standard switches, sensors, and so on. Each AC can be divided into four individually controlled areas in the operating system. Each AC is assigned

q Marienlund Care Facility in Silkeborg, Denmark

an IP-address and communicates with the server via Ethernet. The unit controller (UC), on the other hand, is our seven-channel LED driver, and is used for the luminaire control. The UC can power LEDs either with PWM or digital-to-analogue conversion technology. The UC is controlled via DMX/RDM communication, which it receives from the area controller.

sible. Circadian lighting greatly helps to create optimal conditions for both patients and staff. We find that patients get a sense of day and night, and they actually sleep better; it creates peace for the patients. The staff who work at night are pleased with the red-orange nightlight, they find it easier to fall asleep when they get home from night duty.’ Nurse, Karen Meldgaard


‘It generally gives a better rhythm for our ICU patients; they have an easier time falling asleep at night. At night they sleep more consistently. I have many evening shifts and find that I have an easier time falling asleep when I get home from duty.’ Nurse Mette Hoff

When it comes to luminaires, we have developed our own LED PCBs, which can be equipped with a range of different LEDs, fitted bespoke to the project at hand. So, for example, in the projects we’re discussing here, we used a 2700K warm LED, a 6500K cold LED and an RGB LED. With these LEDs we are able to customise the exact colour spectrums we need for the project. In the circadian scenes we work with blocking and boosting wavelengths around 460nm in the spectrum. Besides the circadian light, we can deliver specialised light scenarios, including (within hospitals) clinical light scenarios for venflon (or taking blood or fluid), ultrasound scans, X-rays and so on. The role and value of coloured lighting is also increasingly recognized within sensory stimulation rooms, where we can create coloured scenarios linked to video projectors and scent machines. But don’t just take my word for it. To conclude, here are some comments from some of fantastic nursing staff we have been involved with about how they feel these new schemes have benefited them and their work:

‘It’s wonderful to be able to create an evening atmosphere with the right lighting.’ Nurse Marit Haugaard Benny Nielsen is project manager at Danish lighting company Lightcare q Warm

q Cold

‘We are very focused on creating the most effective neurological rehabilitation poswww.theilp.org.uk


October 2018 Lighting Journal

Horticultural lighting



Keeping astronauts fed and healthy in space is a key challenge for US space agency NASA, whether during long stays on the International Space Station or, longer term, for a manned mission to Mars. It is working with lighting company Osram to gauge how ‘smart’ horticultural lighting may be able to help

qp Osram’s Phytofy RL software, coupled with a connected grow light fixtures, is being used to supplement the lighting technology used in NASA’s food production

By Nic Paton


ack in July, the ‘red planet’ Mars came the closest it has been to Earth since 2003 and, for many of us, was clearly visible as a glowing red dot in the night sky. Of course, the plan is that humanity will eventually get even more ‘up close and personal’ with Mars, with the US space agency NASA hoping to send a manned mission to the planet in the 2030s. This, in turn, has led to intense activity around what sort of sustainable habitats could be created for astronauts on the planet and how they would survive the long journey to it (or indeed any other) planets. The challenge of how to create and sustain reliable sources of fresh food is a key part of this, both for space travel and for astronauts already spending long periods of time on the International Space Station orbiting the Earth. To that end, NASA has been working with lighting company Osram to gauge how ‘smart’ horticultural lighting may be able to help.


Specifically, Osram has been working with NASA to develop a customised version of its proprietary connected horticulture research lighting system Phytofy RL for apwww.theilp.org.uk

plication in space. The smart lighting software, coupled with a unique setup of connected grow light fixtures, will supplement the lighting technology used in NASA’s food production, in particular the production of salad-type crops for crews during space travel, Osram has said. ‘Osram is developing smart, innovative lighting technologies that can improve food production in a variety of environments, even unique environments like space,’ explains Steve Graves, strategic program manager of urban and digital farming at Osram Innovation, Americas Region. NASA was introduced to Osram through horticultural supplier Hort Americas. Members of NASA’s food production research team presented Hort Americas with a list of features they wanted from a lighting fixture. Hort Americas then used its network to help NASA team up with Osram to learn more about the Phytofy RL horticulture lighting technology, which Osram argues is unlike anything commercially available. Its unique features, Osram argues, include a UV channel that provides researchers with the ability to add a brief UV light to see how plants react and change. The technology also includes more LEDs, which means a higher Photosynthetic

Photon Flux (PPF). PPF measures light emission by calculating how many photons are coming out of the light every second, and is an important metric for plant researchers so they can determine the most efficient and effective light recipes. Finally, there is an ‘Irradiance Map’ that means researchers can see the irradiance using Osram software, meaning there is no need for them to measure irradiance separately before changing the light setting. The attraction for NASA is the system allows researchers to easily adjust lighting conditions so as to optimise plant growth in various conditions, and then replicate those settings in its ‘advanced plant habitat’ on the International Space Station. The technology has as a result now been installed within a growth chamber at Kennedy Space Center in Florida, with there are plans to move the configuration to one or more of the center’s walk-in plant grow rooms. ‘Many of the world’s coolest and most beneficial inventions have come from scientists at NASA over the past several decades, and to play a role in empowering further innovation through the use of our technologies is an honour,’ adds Steve Graves.

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October 2018 Lighting Journal

The Internet of Things

DIGITAL DILEMMAS Scotland is embracing the Internet of Things (IoT), cars of the future will be IoT hubs and our railways networks will be transformed by IoT, it was all announced over the summer. But if IoT is ever to fulfil its potential there is a big job still to be done to overcome consumer scepticism and even outright suspicion By Nic Paton



he Internet of Things is set to transform every sector of our economy, from manufacturing to agriculture and presents an exciting opportunity to revolutionize the way businesses and the public sector across Scotland work.’ So said Kate Forbes, minister for public finance and digital economy in the Scottish Government in August. She was talking about ambitious plans to create a new Scotland-wide Internet of Things (IoT) network, called IoT Scotland, potentially including street lighting. The three-year project will bring together investment from the Scottish Government (£2.7m), a £113,000 contribution from Scottish Enterprise and £30,000 from Highlands and Islands Enterprise, plus an unspecified investment from technology company Boston Networks. The network, which Holyrood has branded ‘the most advanced “Internet of Things” network in the UK’ will, it is hoped, connect businesses and consumers across the country through, for example, ‘smart’ sensor-laden offices and smart bins that wirelessly inform local authorities when they require emptying. Initially the network will cover Glasgow, Inverness, Edinburgh, Aberdeen, Dundee, Perth, and Stirling, with the aim eventualwww.theilp.org.uk

ly of it expanding throughout Scotland. So, does a project like this have the potential to make a difference? Can it be the sort of initiative that is the game-changer that kickstarts IoT from being something simply much talked about and anticipated to something that becomes a reality, perhaps even eventually a mainstream reality, within our urban and lighting infrastructure? For this specific project, only time will tell, of course. And, to be honest, the sort of figures being mentioned – with the network ‘part’ of a £6m project – are not exactly eye-watering in the context of the

p Kate Forbes. The Scottish Government digital economy minister has announced plan for an ambitious Internet of Things network for Scotland

scale of infrastructure we’re talking about. So judgement probably needs to be reserved for now. Nevertheless, it is certainly a positive development, especially for those who see IoT as potentially a brave new frontier of light and lighting.


At one level, the march – and promise – of IoT functionality moves on relentlessly. Just over the summer, for example, we had car giant Volkswagen predicting that cars of the future will also be the IoT hubs of the future. The company’s chief strategy executive Michael Jost said software advances meant car companies, including Volkswagen, would ‘need to reinvent the automobile in some ways’, with cars increasingly being built around a simpler software infrastructure and a unified programming language. Similarly, IoT will in time transform rail travel and networks, predicted Alistair Dormer, chief executive of Hitachi Rail in August. Connected sensors, IoT and the use of smart data analytics would increasingly be used to cut costs, improve services and lead to innovations such as reactive or ‘dynamic’ timetables through to driverless trains. ‘Rail is perfect for digital, absolutely

October 2018 Lighting Journal

perfect. It’s been on the journey for quite a few years, though people don’t realise that’s what’s enabling these changes to happen,’ he told Wired magazine. Signalling will be a key element of this, Dormer has forecast. Rather than, say, a driver looking at rail-side signals for guidance, connected trains will simply pick up the necessary information they need from smart infrastructure as they speed along, helping them adjust more seamlessly for delays, improving fuel efficiency and allowing them to travel more closely together, so boosting capacity on the line.


But alongside all this optimism there is an important issue with IoT that still needs to be addressed or overcome: consumer scepticism or even outright suspicion.

The well-respected Economist Intelligence Unit think-tank in March highlighted that, as IoT devices become more commonplace and familiar, so growing privacy concerns among consumers will need to be addressed. ‘As the digital era has unfolded, consumers have become steadily more aware of the uses that businesses make of the personal information that is handed over when accessing services,’ it argued. ‘Many consumers have become adept at exercising control over how their data are used, for example through consent forms and opt-outs. However, the IoT – the rapidly expanding network of devices, physical objects, services and applications that communicate over the internet – poses a new set of privacy challenges, as it changes the relationship between individuals and their personal data,’ it added.

Even more recently, a global study by software intelligence company Dynatrace published in August and covering some 10,000 consumers worldwide argued that, on the one hand, we are now beginning to see relatively widespread take-up of IoT-enabled devices by consumers (52%). However, on the other hand, nearly two-thirds (64%) of consumers had encountered performance issues with these new devices. A similarly high percentage (62%) were worried about the number of problems they were encountering, with many reporting an average of 1.5 digital performance problems every day. ‘As devices grow in popularity, this could continue to create security concerns and erode consumer trust in these devices if not adequately addressed,’ the report warned. Even more concerning, when it came to connected devices in the home – where lighting is expected to become a key facilitator of IoT in time – some 83% of respondents expressed concern about losing control of smart devices because of these digital performance problems. Common concerns included losing control of the lights or temperature in their house, or even a technology failure resulting in them being locked in or out. As Dynatrace’s Dave Anderson highlighted, the increasing complexity of Cloud-based systems, the growing role of data and our increasing reliance on these sorts of devices was making these concerns a real issue. ‘Consumers are already reporting problems with everything from medical applications, smart meters, car door locks and virtual personal assistants, to smart thermostats and fridges. Their patience is at an all-time low and they simply won’t tolerate a poor experience… The imperative is on companies to find ways to process, analyse and manage the Internet of Things delivery chain holistically,’ he said. The IoT, clearly, is coming, not least north of the border. But for both lighting and technology professionals there is also a big job yet to be done in terms of educating and reassuring consumers – whether commercial consumers or the general public more widely – that IoT connectivity really is the future it is vaunted to be.



October 2018 Lighting Journal

Light School 2019

SHOWCASE LEARNING Light School will be returning to London’s Surface Design Show next February, and the ILP will once again be backing this important opportunity for lighting professionals to showcase their knowledge and expertise

T 40

he ILP is once again supporting Light School at the Surface Design Show, which next year is being held between 05-07 February at London’s Business Design Centre. Light School has become an important fixture within the lighting calendar in recent years, notably as a forum for lighting professionals to showcase to people outside the profession – especially architects and interior designers – just what light and lighting can do and achieve, both in the context of surfaces and more widely. While much of the final detail of next year’s show is still being worked through, the centrepiece of Light School will once again be the ‘Light Talks’ CPD pavilion, which for 2019 will be sponsored by LED Linear. A total of 12 presentations will take place during the three days of the show, curated by the ILP’s VP Architectural Graham Festenstein, of Graham Festenstein Lighting Design. As in previous years, Light School will also be a focal point for manufacturers and suppliers to engage, network and exhibit.

evolving, with new and technologically advanced products entering the market. With technology at the core of the majority of lighting, we believe connectivity and the Internet of Things will continue to increase in demand over the next couple of years, where lighting control and personalisation will become more and more convenient. ‘A future trend which is already emerging is the demand for a light source that p r ov i d e s b ot h h u m a n f r i e n d l y characteristics as well as new possibilities in lighting design. As OLED features no glare or UV, produces lower blue light levels than non-organic LEDs and generates a low heat output, we believe this more humancentric light source will only increase in popularity in the future,’ Ian adds. ‘Light Talks are always an incredibly successful part of Light School,’ agrees Light School’s Philippa Christer. ‘Lighting designers really enjoy the opportunity to present their current projects to architects and interior designers and show them how lighting enhances buildings and spaces.’

While Light School will be an important focal point for the lighting community, it is of course just one part of the much larger Surface Design Show, which is the UK’s only surface materials exhibition. For 2019, more than 150 companies will be exhibiting next February, with companies coming from as far afield as Japan and India. In 2018, some 5,114 visitors attended the Surface Design Show, 70% of whom had purchasing authority, with 37% attending no other similar event. Companies looking to participate in Light School 2019 should contact the show organisers through w w w. surfacedesignshow.com, while lighting designers wishing to visit can pre-register in early November using the same site. Look out for more details, including the initial speaker line-up in the November/ December edition of Lighting Journal.


One of the first companies to commit itself to Light School 2019 has been Applelec, which will be exhibiting its range of rigid and flexible OLED light panels. The concept for its stand will be to demonstrate what future possibilities OLED presents for lighting design because of the thin, lightweight structure of the panels. ‘The Surface Design Show is a fantastic event that brings together manufacturers and suppliers with architects and designers, as well as having the latest inspiring trends and ground-breaking products all under one roof,’ says Applelec managing director Ian Drinkwater. ‘The lighting market is constantly www.theilp.org.uk

WHAT YOU NEED TO KNOW WHAT: Light School at the Surface Design Show WHEN: 05-07 February, 2019 WHERE: The Business Design Centre, Islington, London HOW: How to register/get involved: www.surface designshow.com


LIGHT LIGHT SCHOOL IS NOT YOUR USUAL, RUN OF THE MILL EXHIBITION FOR THE LIGHTING INDUSTRY Co-located with the highly respected Surface Design Show in London’s iconic Business Design Centre, Light School sets out to educate architects and designers in the importance of lighting in the design of both the interior and exterior of buildings.



October 2018 Lighting Journal

Book review




here has been an enormous increase in the use of daylighting analysis methods over the past decade which, in turn, has demanded a higher standard of architectural and lighting design. Mary Guzowski’s The Art of Architectural Daylighting successfully demonstrates this by outlining 12 international examples of how modern designers have incorporated lighting into the structure of their buildings. As a professor in the school of architecture at the University of Minnesota, Guzowski is well-attuned with knowledge of both the poetical and practical aspects of architecture, including lighting. She has demonstrated this in her co-authorship of the ‘Carbon Neutral Project’ and having overseen the master’s course in ‘Sustainable Design Program’ at the university. The Art of Architectural Daylighting uses technical analysis diagrams (which cannot be seen anywhere else) to emphasise how daylighting is used as a means of creating poetic, practical and effective illuminated spaces. The designs that Guzowski has chosen assimilate the three major compartments of design: the qualitative, the aesthetic and the experimental, in turn revealing a more sustainable way of architectural design. www.theilp.org.uk

As these chosen designs are from various different climates, Guzowski is also able to demonstrate how geographically different locations are able to integrate daylighting into their designs, in a way that is effective for their specific climate, whether that be underground or the angle of the skylights.


Title: The Art of Architectural Daylighting Author: Mary Guzowski £50.00 400 illustrations 240 pages Size: 11 x 9 in ISBN: 9781786271648

In sum, The Art of Architectural Daylighting can be an invaluable reference for professionals and students alike, as these designs provide a valuable insight as to how some designers have fused daylighting into their designs. The book emphasises that designers should not continue to use the same inundated daylighting analysis techniques, as this will reduce the design process into something quantitative. If you would like to know more about how daylighting can be used or are interested in how it can be incorporated into different architectural designs, this book is perfect for you!

Published: 25.06.2018 Francesca Barnes is a student studying comparative literature at Queen Mary University of London.



LIGHTING IS CHANGING Europe’s biggest annual lighting event 14-15 November 2018 | ExCeL London

Register free at www.luxlive.co.uk

October 2018 Lighting Journal

LuxLive 2018



Registration is now open for next month’s LuxLive, www.luxlive.co.uk/ILP. This year’s show will be focused on everything from transportation and infrastructure lighting through to retail, hospitality, wellbeing and museums and galleries By Charlotte Hendy


ow in its eighth year, next month’s LuxLive on 14-15 November will feature what is arguably the most comprehensive and ambitious educational programme ever undertaken in the lighting industry. So, what can ILP members and lighting professionals expect this year? This year there will be eight free conference tracks and 20 feature areas, each dedicated to a different aspect of lighting. More than 100 expert speakers will cover topics as broad as emergency lighting, safer cities, lighting for transport and infrastructure, workplace and wellbeing lighting and much more. All content will be CPD-approved. There will be expert talks, inspirational case studies and your chance to stay up-todate with ever-changing regulations. Let’s take a look at each conference track in turn. www.theilp.org.uk


At the heart of this year’s show will be the Property Technology Live arena. This centre-piece stage and technology zone will be where the digital future of lighting comes to life. You can expect two days of free, engaging talks, masterclasses and debates from industry experts. There will also be demonstrations of the latest technology, a chance to meet the leading players and learn from real-world examples of acclaimed projects from around the globe.


Returning this year will be the Escape Zone, dedicated to all things emergency lighting in your buildings. Here you can expect expert advice and guidance on how to manage risk assessments, testing, maintenance and all the associated documentation.

October 2018 Lighting Journal


Lighting has long been a tool in the fight against anti-social behaviour, vandalism, crime and suicides in our cities. But, increasingly, we are beginning to understand that brighter lighting is not always better; it is the intelligent application of lighting – both static and dynamic – that is creating the real breakthroughs and leading to reductions in both crime and the fear of crime in our urban environments. This zone will focus on this exciting new area.


There are more than 720 major UK projects in the pipeline, including major improvements to transport networks such as roads, rail, airports and ports as well as large-scale energy, utility and regeneration projects. This zone will be all about the once-in-a-generation opportunities that are out there to deliver best practice lighting that will represent innovation, value and a human approach to creating welcoming and effective spaces for people.



If you want to become an expert in lighting, check out the Lighting Industry Association’s Lighting Academy. This will take place every day in the LIA Live zone, where a special educational programme will see experienced tutors from the LIA take you through the fundamentals of light, light sources and lighting design. The LIA Labs will also be there, demonstrating its testing procedures and its precision equipment and the training division is discussing the unprecedented availability of qualifications.


Return custom is, naturally, crucial for retail, hotel and restaurants – and the right lighting is the easiest way to achieve it. In this special conference zone, visitors to this year’s LuxLive will be able to find out how to use light to enhance brand values, create customer engagement and boost sales. There will also be best practice case studies showing where and how the right lighting has boosted sales.


Despite conventional wisdom, workplaces are deceptively difficult places to light well. They are also one of the few categories of

lighting with solid restrictions on light level and dos and don’ts. Few will suffer if your building façade is lit to 20 lux not 50. But make a similar mistake in the workplace and you could have a lawsuit. This zone will show you how to create great spaces that boost productivity and wellbeing.


‘Art doesn’t reproduce the visible,’ asserted the artist Paul Klee. ‘Rather, it makes visible the invisible’. The LED lighting revolution is rapidly arriving in museums and galleries, bringing with it a whole array functionality beyond simply illumination. Smart controls and LEDs are changing how we think about lighting, and how we successfully light the world’s most precious objects and artworks. This exciting zone will bring together experts to explore the latest techniques and technologies that can create great visitor experiences in our museums and galleries.

WHAT YOU NEED TO KNOW WHEN: 14-15 November WHERE: ExCeL London, E16 1XL HOW: go to www.luxlive.co.uk/ ILP to register and get your entry badge. You can also view the full conference programme to help plan your visit

Charlotte Hendy is marketing manager for LuxLive www.theilp.org.uk

October 2018 Lighting Journal

YLP at the ILP



SERVING THE YLP HAS BEEN THE BEST HONOUR DURING MY PROFESSIONAL LIFE SO FAR SOFIA TOLIA Sofia Tolia is outgoing chair of the YLP and lighting design manager at Ringway Jacobs



erving the YLP committee, both as a member and as chair, has been the best honour during my professional life so far. It feels like yesterday since I first joined, and I am so grateful to the five amazing YLP chairpeople I had the opportunity to work with. My year as chair is approaching its completion, and before I hand over to John Sutcliffe at the AGM in London in November, I would like to take the opportunity to thank each and every member of this exemplar committee. Nothing would have been possible without their endless support. My year started with a great technical seminar at the MCFC Etihad Stadium in Manchester with papers focusing on smart city innovations and technologies both from a manufacturer’s, designer’s and client’s perspective. This event was held in conjunction with the ILP Northern Region and it would not have been such a success without the great support of chairman David Lewis. Following this, we made the decision as a committee to hold a technical seminar in Ireland. This plan came to fruition with the amazing assistance of the Irish Region and the chairman Keith Meehan. This technical seminar was held in Dublin with a great mix of technical papers covering both street lighting and architectural lighting. Our third event was a ‘Membership Upgrade Day’, held at UCL in London. This was a very well-attended event. www.theilp.org.uk

YLP chair Sofia Tolia will be handing over the reins to John Sutcliffe next month. Here she reflects on her year at the helm of the YLP, while John outlines some of his hopes for the year ahead

The day included speakers who either had completed their registration with the Engineering Council and wanted to encourage more lighting professionals to follow their example or were part of the judging panel that are processing new applications and wanted to give tips for a successful application. My year has ended with two more technical events being organised. The first one was at INDO’s lighting factory in Southampton at the end of September and the last one will be the AGM in London, where the final judgement of the mini paper competition will take place and all the shortlisted papers will be presented to the audience. None of the above-mentioned events would have been successful without the speakers who volunteered their time and shared their knowledge. So I would like to say a big ‘thank you’ to all of them. I would also like to thank all the ILP VPs who have been by my side during my year, and of course the wonderful ILP team in Rugby for all their help. Last but not least, I would like to thank all the members of the ILP/YLP and the companies and employees from the lighting industry who encourage their employers in attending our events. Without their continued support this committee’s vision would not be fulfilled.


I WILL TRY AND KEEP THE MOMENTUM OF THE YLP JOHN SUTCLIFFE John Sutcliffe EngTech AMILP MInstLM is incoming chair of the YLP and a lighting engineer with WSP UK


am very much looking forward to my time as chair for the year 2018-2019 and I would like firstly to thank Sophia Tolia as the outgoing chair for all her hard work over the past 12 months. I will try and keep the momentum of the YLP and will endeavour for us to strive from strength to strength. I would also like to thank the entire committee for their hard work in the last year. Over next year we have numerous joint events planned. A few that I’d like to mention are with the Northern Region in January, North East in March and a third event in May the details of which are to be confirmed. In June, as you may well know, the ILP and YLP are moving in the new direction of the Local Delivery Centres (LDCs). Within each LDC there will be a YLP representative (known as the YLP chair) who will be in attendance to support any upcoming lighting professionals who wish to further their career or want help in the wider lighting industry. To assist the LDC YLP chair, I will endeavour to visit each primary LDC location once within my year as chair. Finally, I would like to say that, as part of my year as vice chair, I have been part of the implementation panel for the LDCs. Therefore, if you have any questions or queries in relation to the YLP and how we fit or get involved with the new way of working please do not hesitate to get in touch with me at john.sutcliffe@wsp.com and I will feed back to the ILP and the rest of the panel on your behalf.


October 2018 Lighting Journal


This directory gives details of suitably qualified, individual members of the Institution of Lighting Professionals (ILP) who offer consultancy services.

Steven Biggs

Allan Howard

Alan Tulla

Skanska Infrastructure Services


Alan Tulla Lighting


Peterborough PE1 5XG

T: +44 (0) 1733 453432 E: steven.biggs@skanska.co.uk


BEng(Hons) CEng FILP FSLL London WC2A 1AF

T: 07827 306483 E: allan.howard@wspgroup.com



Winchester, SO22 4DS

T: 01962 855720 M:0771 364 8786 E: alan@alantullalighting.com

Award winning professional multi-disciplinary lighting design consultants. Extensive experience in technical design and delivery across all areas of construction, including highways, public realm and architectural projects. Providing energy efficient design and solutions.

Professional artificial and daylight lighting services covering design, technical support, contract and policy development including expert advice and analysis to develop and implement energy and carbon reduction strategies. Expert witness regarding obtrusive lighting, light nuisance and environmental impact investigations.

Simon Bushell

Alan Jaques

Michael Walker

SSE Enterprise Lighting


McCann Ltd


Portsmouth PO6 1UJ T: +44 (0)2392276403 M: 07584 313990 E: simon.bushell@ssecontracting.com

www.sseenterprise.co.uk Professional consultancy from the UK’s and Irelands largest external lighting contractor. From highways and tunnels, to architectural and public spaces our electrical and lighting designers also provide impact assessments, lighting and carbon reduction strategies along with whole installation packages.


Nottingham, NG9 2HF

T: +44 (0)115 9574900 M: 07834 507070 E: alan.jaques@atkinsglobal.com


Professional consultancy providing technical advice, design and management services for exterior and interior applications including highway, architectural, area, tunnel and commercial lighting. Advisors on energy saving strategies, asset management, visual impact assessments and planning.

Lorraine Calcott

Tony Price

it does Lighting Ltd

Vanguardia Consulting


T: 01908 560110 E: Information@itdoes.co.uk


Award winning lighting design practice specialising in interior, exterior, flood and architectural lighting with an emphasis on section 278/38, town centre regeneration and mitigation for ecology issues within SSSI’s/SCNI’s.Experts for the European Commission and specialists in circadian lighting


BSc (Hons) CEng FILP MIMechE Winchester SO23 7TA

T: 0118 3215636 E: mark@mma-consultancy.co.uk

T: 01962 855080 M: 07790 022414 E: alistair@designsforlighting.co.uk

Exterior lighting consultant’s who specialise in all aspects of street lighting design, section 38’s, section 278’s, project management and maintenance assistance. We also undertake lighting appraisals and environmental lighting studies

Professional lighting design consultancy offering technical advice, design and management services for exterior/interior applications for highway, architectural, area, tunnel and commercial lighting. Advisors on lighting and energy saving strategies, asset management, visual impact assessments and planning.

John Conquest

Anthony Smith

4way Consulting Ltd

Stainton Lighting Design Services Ltd

Stockport, SK4 1AS

T: 0161 480 9847 M: 07526 419248 E: john.conquest@4wayconsulting.com




Stockton on Tees TS23 1PX

T: 01642 565533 E: enquiries@staintonlds.co.uk


Providing exterior lighting and ITS consultancy and design services and specialising in the urban and inter-urban environment. Our services span the complete Project Life Cycle for both the Public and Private Sector

Specialist in: Motorway, Highway Schemes, Illumination of Buildings, Major Structures, Public Artworks, Amenity Area Lighting, Public Spaces, Car Parks, Sports Lighting, Asset Management, Reports, Plans, Assistance, Maintenance Management, Electrical Design and Communication Network Design.

Stephen Halliday

Nick Smith


Nick Smith Associates Limited


Manchester M50 3SP


Chesterfield, S40 3JR

T: 0161 886 2532 E: stephen.halliday@wspgroup.com

T: 01246 229444 F: 01246 270465 E: mail@nicksmithassociates.com

Public and private sector professional services providing design, technical support, contract and policy development for all applications of exterior lighting and power from architectural to sports, area and highways applications. PFI technical advisor and certifier support, HERS registered personnel.

Specialist exterior lighting consultant. Private and adopted lighting and electrical design for highways, car parks, area and sports lighting. Lighting Impact assessments, expert witness and CPD accredited Lighting design AutoCAD and Lighting Reality training courses


www.mccann-ltd.co.uk Design for all types of exterior lighting including street lighting, car parks, floodlighting, decorative lighting, and private lighting. Independent advice regarding light trespass, carbon reduction and invest to save strategies. Asset management, data capture, inspection and testing services available.

Peter Williams EngTech AMILP

Williams Lighting Consultants Ltd.

Specialists in the preparation of quality and effective street lighting design solutions for Section 38, Section 278 and other highway projects. We also prepare lighting designs for other exterior applications. Our focus is on delivering solutions that provide best value.

Designs for Lighting Ltd


Nottingham NG9 6DQ M: 07939 896887 E: m.walker@jmccann.co.uk

Chartered engineer with wide experience in exterior and public realm lighting. All types and scales of project, including transport, tunnels, property development (both commercial and residential) and sports facilities. Particular expertise in planning advice, environmental impact assessment and expert witness.


MMA Lighting Consultancy Ltd



Bedford, MK41 6AG T: 01234 630039 E: peter.williams@wlclighting.co.uk

Alistair Scott

Reading RG10 9QN

Site surveys of sports pitches, road lighting and offices. Architectural lighting for both interior and exterior. Visual Impact Assessments for planning applications. Specialises in problem solving and out-of-the-ordinary projects.

T: +44(0) 1883 718690 E:tony.price@vanguardiaconsulting.co.uk

Oxted RH8 9EE

Mark Chandler EngTech AMILP




This space available Please call Andy on 01536 527297 or email andy@matrixprint.com for more details

This space available Please call Andy on 01536 527297 or email andy@matrixprint.com for more details

Go to: www.theilp.org.uk for more information and individual expertise

Neither Lighting Journal nor the ILP is responsible for any services supplied or agreements entered into as a result of this listing.


Directory CPD Accredited Training • AutoCAD (basic or advanced)

With 25+ years of experience in structural testing, we offer straight-forward, professional advice and solutions to all those involved in street lighting and highway asset management

• Lighting Reality CPD Accredited Training CPD Accredited Training Standards CPD Accredited Training CPD Accredited Training • AutoluxLighting • AutoCAD (basic or advanced) • Lighting Design Techniques • •AutoCAD (basic or advanced) • AutoCAD (basic or advanced) •• AutoCAD (basic or advanced) Lighting Reality Light Pollution • Lighting Reality • Lighting Reality • Lighting Reality • AutoluxLighting Standards CPD Accredited Training • Tailored Courses please ring CPD Accredited Training • •AutoluxLighting Standards • AutoluxLighting Standards • AutoluxLighting Lighting Design Techniques Standards Accredited Training • •Lighting Design Techniques •CPD Lighting Design •Venues Lighting Techniques AutoCAD (basicTechniques or advanced) by Design arrangement Light Pollution • •Light Pollution • Light Pollution • Light Pollution Lighting Reality • AutoCAD (basic or advanced) Tailored Courses please ring Nick Smith • Tailored Courses please ring please ring • Tailored CoursesStandards please ring •Contact Tailored Courses • Lighting Reality •AutoluxLighting AutoCAD (basic or advanced) Nick Smith Associates Ltd • Lighting Design Techniques Venues by arrangement 36 Foxbrook Drive, •Reality AutoluxLighting Standards Venues by arrangement Venues by arrangement Venues by arrangement Lighting ••Light Pollution Contact NickChesterfield, Smith • Lighting Design Techniques • Tailored Courses please ring Contact Nick Smith S40 3JR Contact Nick Smith

CPD Accredited Training Nick Ltd Smith • AutoluxLightingNick Standards Smith Contact Associates

Nick Smith Associates Ltd Nick Smith Associates Ltd t: 01246 229 444 • Light Pollution Nick Smith Associates Ltd 36 Foxbrook Drive, • AutoCAD (basic or advanced) Venues by arrangement • Foxbrook Lighting Design Techniques 36Chesterfield, Foxbrook Drive, f: 01246 588604 36 Drive, 36 Foxbrook Drive, • Tailored Courses please ring Chesterfield, e : mail@nicksmithassociates.com Chesterfield, Chesterfield, S40 3JR • Light Contact NickPollution SmithReality • Lighting S40 3JR 229S40 w: www.nicksmithassociates.co.uk S40 3JR 3JR t: 01246 444 Nick Smith Associates Ltd t:by 229 444 t:•01246 229 444Venues Tailored Courses please ring 229 444 t: 01246 arrangement f:01246 01246 588604 36 Foxbrook Drive, f: e01246 588604 f: 01246 588604 • AutoluxLighting Standards f: 01246 588604 : mail@nicksmithassociates.com Chesterfield, HAGNER PHOTOMETRIC e w: : mail@nicksmithassociates.com e : mail@nicksmithassociates.com www.nicksmithassociates.co.uk Contact Nick Smithe : mail@nicksmithassociates.com S40 3JR w: www.nicksmithassociates.co.uk w: www.nicksmithassociates.co.uk w: www.nicksmithassociates.co.uk arrangement • Lighting Design Techniques t:Venues 01246 229by 444Nick INSTRUMENTS LTD Smith Associates Ltd f: 01246 588604 36 Foxbrook Drive, eContact : mail@nicksmithassociates.com Nick Smith • Light Pollution Suppliers of a wide range of quality Chesterfield, w: www.nicksmithassociates.co.uk Nick measuring Smith Associates Ltd light and photometric S40 3JR • Tailored Courses please ring equipment. 36 Foxbrook Drive,229 444 t: 01246

f: 01246 588604 Chesterfield,

HAGNER PHOTOMETRIC INSTRUMENTS LTD e : mail@nicksmithassociates.com S40 PO Box3JR 210, Havant, PO9 9BT Tel: 07900 571022 w: www.nicksmithassociates.co.uk

Venues by arrangement t: 01246 229 444

E-mail: enquiries@hagnerlightmeters.com


BSI Cert No. FS607666 | BSI Cert No. OHS 660317 HERS Reg No. SSR539

f: 01246 588604 e : mail@nicksmithassociates.com Contact Nick Smith w: www.nicksmithassociates.co.uk

Nick Smith Associates Ltd www.hagnerlightmeters.com 36 Foxbrook Drive, Chesterfield, S40 3JR t: 01246 229 444 UK Lighting Division f: 01246 588604 e : mail@nicksmithassociates.com w: www.nicksmithassociates.co.uk Ÿ Road Lighting

Ÿ Feeder Pillars

Ÿ Hazardous Area Lighting

Ÿ Distribution Panels

Ÿ Industrial & Commercial

Ÿ Cable & Cable Joints


Ÿ Lighting & Electrical

Ÿ Decorative Lighting

Design Services

Barry Morrison UK Lighting Manager

Tel Email

01236 458000 barry.morrison@dnow.com


The new 2018 ILP Lighting Journal Media Pack is now available. Please call Andy on 01536 527297 or email andy@matrixprint.com for more details

October 2018 Lighting Journal

Kiwa CMT Testing Meter Administrator Inspection and Non-destructive Testing of Lighting Columns on vulnerable areas including the root, base and swaged joint connection. Techniques used include the Relative Loss of Section Meter and Swaged Joint Analyser supported by Ultrasonics where appropriate. Other services include full visual inspection of concrete columns, data capture of highway assets with GPS capability and structural calculations for the installation of column attachments. All test data is recorded and reported electronically with recommendations on each column tested in accordance with guidance given by TR22. Kiwa CMT Testing are UKAS accredited (ISO 17025) for the Structural Testing of Lighting Columns

Kiwa CMT Testing Unit 5 Prime Park Way Prime Enterprise Park Derby

T: E: W:

01332 383333 cmtenquiries@kiwa.co.uk www.kiwa.co.uk/cmt

Meadowfield, Ponteland, Northumberland, NE20 9SD, England Tel: +44 (0)1661 860001 Fax: +44 (0)1661 860002 Email: info@tofco.co.uk www.tofco.co.uk Manufacturers and Suppliers of Street lighting and Traffic Equipment • Fuse Units • Switch Fuse Units • Feeder Pillars and Distribution Panels • The Load Conditioner Unit (Patent Pending) • Accessories

Power Data Associates Ltd are Power Associates the leadingData meter administrator in Great Britain. We achieve Ltd are the leading accurate energy calculations meter administrator assuring you of a cost effective quality in service. Great Offering Britain. We independent consultancy advice achieve to ensure correct accurate inventory coding, unmetered energy forecasting and energy calculations impact of market developments.

assuring you of

01525 601201 a cost effective

info@PowerDataAssociates.com www.PowerDataAssociates.com Wrest Park, Silsoe, Beds MK45 4HR

quality service. Offering independent consultancy advice to ensure correct inventory coding, unmetered energy forecasting and impact of market development

Contact: Kevin Doherty Commercial Director kevindoherty@tofco.co.uk


If you would like to switch to Tofco Technology contact us NOW!

WE’RE HIRING Street Lighting Project Engineer £30,756 - £33,136 + standby rota payment of £2,130 per annum WCC's Street Lighting Section is a small team that manage 55,000 street lights and illuminated traffic signs and bollards countywide, and we are searching for an experienced street lighting engineer to join us as a Project Engineer. You will be required to lead on all projects that require a street lighting input and/or electricity connections on the Highway including Section 38/278 schemes. You will be required to be part of the Street Lighting out of office rota, for which an additional payment is made. To apply, and for further information about the role, please visit the following webpage https:// www.wmjobs.co.uk/job/40866/ street-lighting-project-engineer/ or if you wish to discuss please call Mike Cunningham, Principal Lighting Engineer, on 01926 736548.

01525 601201


www.PowerDataAssociates.com Wrest Park, Silsoe, Beds MK45 5HR

We are now accepting bookings for the 2019 Lighting Directory and the 2019 Consultants Directory. Contact Andy Etherton on 01536 527297 or andy@matrixprint.com from more information and prices.


October 2018 Lighting Journal


THE DIARY 09 October

Lightscene: The A to Z of Asset Management Venue: Rotherham United Football Club.

11 October

North East Region committee and technical meeting Venue: Durham County Hall

17 October p

14-15 November – LuxLive will be taking place at the ExCeL centre in London


‘How to be brilliant’, with Lauren Lever, of Light.iQ Venue: Body & Soul, Rosebery Avenue, London

25-27 October

Professional Lighting Design Convention (PLDC) Venue: Marina Bay Sands, Singapore

07 November

Fundamental Lighting course Venue: ILP, Regent House, Rugby

14-15 November

LuxLive Venue: ExCeL, London

15 November

North East Region technical meeting Venue: Thorn, Spennymoor

19-23 November

Exterior Lighting Diploma module C Venue: The Draycote Hotel, Rugby

28 November

How to be brilliant, with Magdalena Gomez of Elektra Lighting Design Venue: Body & Soul, Rosebery Avenue, London

29 November

YLP AGM and joint technical event with LSE Region Venue: The City Centre, 80 Basinghall Street, London For full details of all events, go to: www.theilp.org.uk/events


From cave fires to candles, electric lighting to LED and SSL: where next for luminaires and light sources?



Why the looming crisis of the UK’s decaying lighting stock needs to be talked about


Inside the ILP’s updated Bats and Lighting guidance for the built environment



Human centric lighting that mimics natural day time and evening tones to synchronise with human circadian rhythm. Create your own colour temperature scheme. The luminaire works autonomously from a pre-programmed scheme or if you want controlled by an external control management system.

Find our more at



Experts in exterior LED lighting

Profile for Matrix Print Consultants Ltd

Lighting Journal October 2018  

Lighting Journal October 2018  

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