Select Quantity of light unit to convert from:

Convert from Candela second steradian

Convert from Joule (quantity of light)

Convert from Lumen hour

Convert from Lumen second

Convert from Lux second square meter

Convert from Talbot

Convert from Wattsecond (green light , 100% efficiency)

Convert from Wattsecond (light at 540 THz)

Convert from Wattsecond (light at 5550 angstrom)