| Outdoor
Illumination |
Light in Footcandles |
| Direct Sunlight |
10,000 - 13,000 fc |
| Full Daylight |
1,000 - 2,000 fc |
| Overcast Day |
100 fc |
| Twilight |
1 fc |
| Deep Twilight |
0.1 fc |
| Full Moon |
0.01 fc |
| Moonless Night |
0.0001 fc |
| Overcast Night |
0.000001 fc |
| Indoor
Illumination |
Light in Footcandles |
| Assembly Line |
20 fc |
| General Work Area |
30 fc |
| Fine Assembly Work |
100 fc |
| Retail Store |
50 fc |
| Accounting Work |
50 fc |
| Bank Lobby |
20 fc |
| Offices |
50 fc |
| Operating Table |
1,800 fc |
To convert to lux multiply footcandles by 10.764
|
