Lighting engineering Average lighting levels maintained and recommended by EN 12464-1:2011 Type of interior, task and activity
Em (lx)
Glare UGRL
minimum Ra
500 500 750 500 300 200 300
19 19 16 19 19 25 22
80 80 80 80 80 80 80
300 500 300 500 750 300 200 500 300 500 200 300 100 300 200 500
19 19 19 19 16 19 22 22 19 19 22 19 25 22 22 22
80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80
500 200 500
19 19 19
80 80 80
200 500 200 300 500 200 100
22 19 25 22 22 22 25
80 80 80 80 80 80 80
100 150 100 500 200 200 min. 0.5 min. 1
28 25 22 19 25 25
40 40 80 80 60 80 80 80
300 (1) 500 500 300
22 (1) 19 19 22
80 80 80 80
OFFICES Writing and data processing CAD stations Technical drawing Conference and meeting rooms Filing and copying Archives Reception SCHOOLS Playrooms in nursery schools Handicraft rooms Classrooms in secondary schools Classrooms in evening and adult education schools, art education Technical drawing rooms Music practice rooms, language labs Common rooms and main hall Preparation rooms and workshops Computer labs Vertical illumination of blackboards Entrances Teachers’ rooms Storage rooms for teaching material Sports facilities, swimming pools (general use) Canteen Kitchen LIBRARIES Reading areas Vertical illumination of shelves Public service areas CANTEENS, RESTAURANTS AND SELF-SERVICE General lighting Conference rooms Wardrobe Buffet, reception, cash desk and porter Kitchen Self-service restaurants Corridors TRANSIT AREAS AND ROOMS FOR GENERAL USE IN BUILDINGS Circulation areas and corridors (floor lighting) Stairs, lifts, escalators Rest rooms Infirmary Technical rooms, control panels Baths, toilets, wardrobe Minimum general emergency lighting (EN 1838) Minimum emergency lighting in exit routes (EN 1838) COMMERCIAL AND/OR EXHIBITION AREAS Sales areas Cash desks Packaging desk Fairs, exhibition halls (general lighting)
Notes: (1) Lighting and UGR depend on the type of shop.
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