Footcandle Footcandles measure light quantity as it falls on a surface, illuminating it. One footcandle equals one lumen per square foot. Lux and phots, two other lighting terms, are the metric variation of footcandles, indicating how much light, in lumens, falls on a square meter of surfac...
Thelumen methodis the most commonly used formula for calculating the total lighting requirements needed for a space. With this formula, first establish the intended use of the space, then reference theIES foot candle guideand finally, multiply the foot candle recommendation by the squa...
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