Footcandle (fc or ftc)
Footcandle (fc or ftc) :
A traditional unit of illuminance or illumination, defined as the illuminance received by a surface at a distance of one foot from a source of intensity one international candle. The "international candle" was the predecessor of thecandela?as the standard unit of light intensity. Illuminance is now measured in lux; one footcandle equals 10.764 lux or about 1.0764 milliphot. The unit is also spelled foot-candle or foot candle
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