 SI base unit: candela (cd)

Publisher: Bureau International des Poids et Mesures.

Online text: www.bipm.org/en/si-base-units/candela

Cited passages: Definition: lumen per watt equals candela steradian per watt; Equivalent expression: one candela for radiant intensity (1/683) watt per steradian at the defining frequency; SI base unit: candela, defining constant and equivalent radiant intensity.