From http://en.wikipedia.org/wiki/Candlepower :
I wouldn't call the term obsolete, as BCP is still often stated and used in the calculation of photometrics for stage lighting luminaires.
Candlepower (abbreviated as cp) is an obsolete unit measuring luminous intensity, equal to 0.981 candela.
I wouldn't call the term obsolete, as BCP is still often stated and used in the calculation of photometrics for stage lighting luminaires.