6 Model 401020 and 401021-EN v2.0 8/13
10.Appendix1‐TypicalLightLevels
Lux Foot
Candles
Lux Foot
Candles
Factories
Home
20-75 2-7 Emergency Stairs, Warehouse
100-150 10-15 Washing
75-150 7-15 Exit/Entrance Passages
150-200 15-20 Recreational Activities
150-300 15-30 Packing Work
200-300 20-30 Drawing Room, Table
300-750 30-75 Visual Work: Production Line
300-500 30-50 Makeup
750-1,500 75-150 Typesetting: Inspection Work
500-1,500 50-150 Reading, Study
1,500-3,000 150-300 Electronic Assembly, Drafting
1,000-2,000 100-200 Sewing
Office
Restaurant
75-100 7-10 Indoor Emergency Stairs
75-150 7-15 Corridor Stairs
100-200 10-20 Corridor Stairs
150-300 15-30 Entrance, Wash Room
200-750 20-75 Conference, Reception Room
300-750 30-75 Cooking Room, Dining
Table
750-1,500 75-150 Clerical Work
750-1,500 75-150 Show Window
1,500-2,000 150-2000 Typing, Drafting
Store
Hospital
75-150 7-15 Indoors
30-75 3-7 Emergency Stairs
150-200 15-20 Corridor/Stairs
75-100 7-10 Stairs
200-300 20-30 Reception
100-150 10-15 Sick Room, Warehouse
300-500 30-50 Display Stand
150-200 15-20 Waiting Room
500-750 50-75 Elevator
200-750 20-75 Medical Exam Room
750-1,500 75-150 Show Window, Packing Table
750-1,500 75-150 Operating Room
1,500-3,000 150-300 Storefront, Show Window
5,000-10,000
500-1000 Eye Inspection
11.Appendix2‐CommonConversionFactors
1 lux (lx)
10
-4
lm/cm
2
10
-4
phot (ph)
9.290 x 10
-2
lm/ft
2
Illuminance (Visible Flux Density)
1 lm/m
2
=
9.290 x 10
-2
foot-candles
Luminance (Visible Flux Density per Solid Angle)
1 lm/m
2
/sr = 1 candela/m
2
Luminous Intensity (Visible Flux per Solid Angle) 1 lm/sr = 1 candella
Luminous Flux ( Visible Flux) 1 lumen (lm) =
1.464 x 10
-3
watts @ 555 nm
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