footcandle
/ˈfʊtˌkændl/
noun
- A unit for measuring light intensity, equal to the amount of light from one candle falling on a surface one foot away.
- A typical office requires about 30 footcandles of light for comfortable reading.
- The photographer measured the light in the studio as 50 footcandles.
- The museum kept the artwork under low footcandle levels to prevent fading.