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colour temperature

British  

noun

  1. physics the temperature of a black-body radiator at which it would emit radiation of the same chromaticity as the light under consideration

"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

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Firstly, they are two to three times as bright as traditional halogens, and their "colour temperature" is bluer and whiter, which mimics natural daylight.

From BBC Feb. 18, 2026

Mr Scheidt notes that for warm-toned LEDs, the efficiency drops somewhat, but it's still possible to achieve around 160 lumens per watt for warm white luminaires, with a colour temperature of 2,700 kelvin.

From BBC Dec. 18, 2023

A rotating research centre can turn 360 degrees, with adjustable interior lamps changing the colour, temperature, brightness and light spectrum.

From The Guardian Jul. 18, 2018

They changed the colour temperature of the overhead lights and the tint of the large, glass windows.

From Nature Sep. 13, 2016

There is no precipitate whatever; and not five yards from their source they mingle with a strong current of cold pure mountain water, to which no perceptible alteration is imparted in colour, temperature, or taste.

From The Highlands of Ethiopia by Harris, William Cornwallis

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