ABSTRACT OF THE ELEKTROKENT PERPA MAGAZINE
deration, we can guess that the bulb manufacturers are following this new system closely. As a result of this we have already begun to see alliances forming with the intention of forming a new market. One of these is the alliance formed between Philips Lighting and Luxeon 5W from Agilent Technologies. The Luxeon 5W, is a white LED with the ability to produce energy equivalent to a 20 watt' bulb; while consuming only 5 watts of energy. Comparison with the classic bulb All these figures highlight the importance of the white LED's .At the end of the day after considering the pros and cons of the systems still prevalent in the system, this new technology is expected to shake the current throne. For example let us take the classic bulb an inert gas enclosed in a glass vacuum with a wire made up of tungsten lit by an electric
current are relatively cheap to produce but have extremely low efficiency. The heat formed from the passage of electricity may light the wire but there is no direct electrical production taking place. Here a large percentage of the energy consumed is converted to heat energy and this leads to a loss in the wattage of the bulb. Another problem with these bulbs is that the wire that is lit in theses bulbs is fragile and sensitive to vibrations and shocks and its half life decreases steadily each time the bulb is lit due to the thermic shock it experiences. Even though Halogen bulbs performs relatively better than the classic bulbs, efficiency still poses an important problem. The increase of the florescent bulbs. On the other hand florescent tubes and the low pressure gas bulbs used in public lighting are champions of efficiency. Due to the fact that since these
bulbs hardly heat up at all, most of the energy is converted into light energy. But florescent tubes require a large circuit consisting of the coiling and starter in order to produce the voltage tension needed to make the visible plasma light. The price of this circuit that is placed inside the tube is ten maybe fifteen times the cost of a classic bulb. These lights are not resistant to being turned on and of repeatedly frequently and they also take about 30 seconds to light up completely also their efficiency falls dramatically in cold weather. The LED's most important feature is that although they posses all of the advantages of the latest technologies they still incorporate the old principles and that makes them capable of exhibiting an efficiency of almost 100%... All of the energy is light The LED manufacturers are hoping to im-
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