Meaning of apparent candlepower

appar'ent can'dlepower

Pronunciation: [key]
— Optics. Optics.
  1. a measure of the luminous intensity of an extended source of light in terms of the candlepower of a point source of light that has an equivalent luminous intensity when placed at the same distance as the extended source.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.