Light Bulb Colour Temperatures

All fluorescent tubes, compact fluorescent & energy saving lamps are available in different colour renditions, or burning temperatures measured in Kelvin.

Colour temperature is a standard technique of describing colours for use in a range of situations & with different equipment. Colour temperatures are normally expressed in units called kelvins (K). Note that the term degrees kelvin is often used but is not technically correct.

For example an energy saving lamp with a colour temperature of 3500K burns at 3500 Kelvin this colour is called white.

There is a high demand this days for daylight lamps which burn at a temperature of 6500K, these lamps are often used to combat SAD (seasonal affective disorder)

Colour Reference	Colour	Colour Temperature	CR1 Ra
Colour 12	Daylight
Colour 25	Natural		73
Colour 55	Northlight		93
Activa 172	Northlight		98
Colour 10	Blue
Actinic 03	Special
Actinic 09	Blue
Colour 827	Very Warm Triphosphor	2700 Kelvin	85
Colour 29	Warm White	2700 Kelvin	51
Colour 129	Warm White	3000 Kelvin	53
Colour 830	Warm White Triphosphor	3000 Kelvin	85
Colour 30	Warm White	3000 Kelvin	54
Colour 930	Very Warm Triphosphor	3000 Kelvin	95
Colour 83	Warm White	3000 Kelvin	85
Colour 835	White Triphosphor	3500 Kelvin	85
Colour 23	White	3500 Kelvin	56
Colour 135	White	3500 Kelvin	57
Colour 35	White	3500 Kelvin	58
Colour 08	Blacklight Blue	350nm
Actinic 05	Blacklight	350nm
Gourmet 175	Special	3700 Kelvin	88
Colour 33	Cool White	4000 Kelvin	62
Colour 940	Cool White Triphosphor	4000 Kelvin	95
Colour 84	Cool White	4000 Kelvin	85
Colour 20	Cool White	4000 Kelvin	67
Colour 840	Cool White Triphosphor	4000 Kelvin	85
Colour 133	Cool White	4000 Kelvin	64
Colour 11	Daylight	6500 Kelvin
Colour 54	Daylight	6500 Kelvin	76
Colour 950	Daylight Triphosphor	6500 Kelvin	95