KELVIN COLOUR TEMPERATURE
Co rrelated Colou r T emperature (CCT) is conventionally expressed in kelvin, using the symbol K, a unit of measure for absolute temperature . Below is a visual guide on the relative range of CCT colour temperatures.
CCT
CONVENTIONAL EXAMPLE
Match flame, low pressure sodium lamps (LPS/SOX).
1700K
Candle flame, sunset/sunrise.
1850K
Standard incandescent lamps.
2400K
Soft white incandescent lamps.
2550K
“Soft white” compact fluorescent and LED lamps.
2700K
Warm white compact fluorescent and LED lamps.
3000K
Studio lamps, photofloods, etc.
3200K
Studio “CP” light.
3350K
Tubular fluorescent lamps or cool white/daylight. Compact fluorescent lamps (CFL).
5000K
Vertical daylight, electronic flash.
5500 - 6000K
Xenon short-arc lamp.
6200K
Daylight, overcast.
6500K
LCD or CRT screen.
6500 - 9500K
Clear blue poleward sky.
15,000 - 27,000K
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