+10fc represents ten [Foot-candle](/wiki/Foot-candle)s, a non-SI unit of [Illuminance](/wiki/Illuminance). This measure quantifies the intensity of light falling on a surface. It is often used in American lighting specifications.
+## See also
+- [Lux](/wiki/Lux)
+- [Lumen](/wiki/Lumen)
+- [Light](/wiki/Light)
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