foot-candle

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foot-candle

A measure of light intensity. One foot-candle is the illumination measured on a surface one foot from the source of one candle. Many worker-safety regulations specify the minimum foot-candles of light required in work areas.Zoning variances for commercial properties near residential areas might place a restriction on the maximum foot-candles of lighting after a certain hour at night.

References in periodicals archive ?
In a side-by-side comparison with three industry leading LED downlights, Renaissance Lighting's solia([TM]) product scored highest on delivered foot candles, overall optical efficiency and efficacy.
Light two soccer pads (300%x360%( with four metal 70%poles to a minimum of 30 foot candles using one of two methods shown.
This hazardous location LED light fixture is constructed similarly to standard four bulb fluorescent fixtures, but now provides 30% more foot candles of illumination at eight feet than standard T8 lamps thanks to the addition of Larson Electronics' second generation LED tubes.
An ingenious automatic control system limits the light levels to about 70 foot candles when the building is in a cooling mode, and controls the lights so they are only used when daylight is insufficient.