Foot-candle

A foot-candle is a measurement of light intensity used in lighting design and assessment. It quantifies how much light falls onto a surface, with one foot-candle representing the amount of light produced by a standard candle at a distance of one foot directly above the surface. Essentially, it helps determine whether a space is adequately lit for its intended purpose. Higher foot-candle values mean brighter illumination, while lower values indicate dimmer light. It is useful in various settings, from offices to theaters, ensuring lighting levels are appropriate for safety, comfort, or functionality.