footcandle (fc)
Quantity of light on 1 ft2 of surface area 1 foot away from light source of 1 cd. (Metric measure is lux; to convert footcandles to lux, multiply by 10.76)
Quantity of light on 1 ft2 of surface area 1 foot away from light source of 1 cd. (Metric measure is lux; to convert footcandles to lux, multiply by 10.76)