1 phot = 1 lumen / sq centimetre = 10000 lumens / sq metre = 10000 lux 1 foot candle (ftcd, fcd) = 1 lumen / sq ft = 10.752 lux . Outdoor Light Levels Common outdoor light levels at day and night: Illuminance - Outdoor Light Levels ConditionIllumination (ftcd)(lux) Sunlight 10000...
A lumen is a unit of measurement for the intensity of the light coming out of a flashlight. A high lumen output means that the flashlight shines bright. These brightest flashlights emit the most lumens of all flashlights on the market, when on the brightest setting, although many have multi...