Resident Curmudgeon
Senior Team
Premium Member
Aug 21, 2007
Las Vegas, NV, USA
A measurement of light intensity. Defined as the amount of illumination from a point source emitting 1 candela on the interior of a sphere with a 1 foot radius. It can also be defined as the illuminance on a 1 square foot surface from a source emitting 1 lumen.

See also lumen.
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