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Colour temperature

A description of the warm or cool appearance of white light, expressed in kelvin (K). Lower values generally appear warmer and more amber; higher values appear cooler and more blue.

A description of the warm or cool appearance of white light, expressed in kelvin (K). Lower values generally appear warmer and more amber; higher values appear cooler and more blue.

First published 18 July 2026 · Revision 1 · Substantive changes to this entry are dated here.