Typical Illumination Measurements

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

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