or cand·le pow·er

[ kan-dl-pou-er ]
/ ˈkæn dlˌpaʊ ər /

noun Optics.

(formerly) a measure of luminous intensity expressed in candles.

Origin of candlepower

First recorded in 1875–80; candle + power Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for candlepower

  • In an ordinary 16 candlepower carbon lamp, the resistance of this filament is 220 ohms.

    Electricity for the farm|Frederick Irving Anderson
  • The lamps should be of low voltage and need not be very high in candlepower.

  • One farm (that of the owner of the wheel) has 30 lamps, of 16 candlepower each, and two barn-yard lamps of 92 candlepower each.

    Electricity for the farm|Frederick Irving Anderson
  • The new nitrogen lamp, not yet in general use, requires only ½ watt to the candlepower.

    Electricity for the farm|Frederick Irving Anderson

British Dictionary definitions for candlepower


/ (ˈkændəlˌpaʊə) /


the luminous intensity of a source of light in a given direction: now expressed in candelas but formerly in terms of the international candle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for candlepower


[ kăndl-pou′ər ]

Luminous intensity, expressed in candelas.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.