Appendix
Typical Light Levels
Lux
Foot
Candles
Factories
20-75
75-150
150-300
300-750
750-1,500
1,500-3,000
75-100
100-200
200-750
750-1,500
2-7
7-15
15-30
30-75
75-150
150-300
7-10
10-20
20-75
75-150
Emergency Stairs, Warehouse
Exit/Entrance Passages
Packing Work
Visual Work: Production Line
Typesetting: Inspection Work
Electronic Assembly, Drafting
Office
Indoor Emergency Stairs
Corridor Stairs
Conference,
Reception Room
Clerical Work
Store
75-150
150-200
200-300
300-500
500-750
750-1,500
1,500-3,000
7-15
15-20
20-30
30-50
50-75
75-150
150-300
Indoors
Corridor/Stairs
Reception
Display Stand
Elevator
Show Window,
Packing Table
Storefront, Show Window
30-75
75-100
100-150
150-200
200-750
750-1,500
3-7
7-10
10-15
15-20
20-75
75-150
Stairs
Sick Room,
Warehouse
Waiting Room
Medical Exam Room
Operating Room
75-150
150-300
300-750
750-1,500
7-15
15-30
30-75
75-150
100-150
150-200
200-300
300-500
500-1,500
1,000-2,000
10-15
15-20
20-30
30-50
50-150
100-200
Lux
Foot
Candles
Home
Washing
Recreational Activities
Drawing Room, Table
Makeup
Reading, Study
Sewing
Restaurant
Corridor Stairs
Entrance,
Wash Room
Cooking Room, Dining
Table
Show Window
Hospital
Emergency Stairs
1,500-2,000 150-2000 Typing, Drafting
5,000-10,000 500-1000 Eye Inspection
Spectral Sensitivity
1.2
1
Relative Sensitivity (%)
0.8
0.6
0.4
0.2
0
380
400
420
440
460
480
500
520
540
560
580
600
620
640
660
680
700
720
740
760
Wavelength in Nonometers
780
1.2
1
0.8
0.6
0.4
0.2
0
Light Meter
CIE
9
EA33 V2.0
06/06
EXTECH [ EXTECH INSTRUMENTS CORPORATION. ]
