Light Bulb Colour Temperatures
To help understand it all, this page has some useful details to guide you through it.
How it all works
- All fluorescent tubes, compact fluorescent and energy saving lamps are available in different colour renditions, or burning temperatures measured in Kelvin.
- Colour temperature is a standard method of describing colours for use in a range of situations and 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 known as white. There is a high demand nowadays for daylight lamps which burn at a temperature of 6500K, these lamps are often used to combat SAD (Seasonal Affective Disorder).
- View the chart of colour temperatures below, and if you are unsure of the lamp you require please email us on firstname.lastname@example.org or speak to one of our friendly experts on 01473 716418.
Colour Temperatures In Kelvin
Light Bulb Colour Temperatures Explained
Full Reference Chart
What is CR1 Ra?
This is the Color Rendering Index (sometimes referred to as CRI), more details here
|Colour Reference ||Colour ||Colour Temperature ||CRI Ra |
|Colour 29 ||Warm White ||2700 ||51 |
|Colour 827 ||Very Warm Triphosphor ||2700 ||85 |
|Colour 30 ||Warm White ||3000 ||54 |
|Colour 83 ||Warm White ||3000 ||85 |
|Colour 129 ||Warm White ||3000 ||53 |
|Colour 830 ||Warm White Triphosphor ||3000 ||85 |
|Colour 930 ||Very Warm Triphosphor ||3000 ||95 |
|Colour 23 ||White ||3500 ||56 |
|Colour 35 ||White ||3500 ||58 |
|Colour 135 ||White ||3500 ||57 |
|Colour 835 ||White Triphosphor ||3500 ||85 |
|Gourmet 175 ||Special ||3700 ||88 |
|Colour 20 ||Cool White ||4000 ||67 |
|Colour 33 ||Cool White ||4000 ||62 |
|Colour 84 ||Cool White ||4000 ||85 |
|Colour 133 ||Cool White ||4000 ||64 |
|Colour 840 ||Cool White Triphosphor ||4000 ||85 |
|Colour 940 ||Cool White Triphosphor ||4000 ||95 |
|Colour 11 ||Daylight ||6500 || |
|Colour 54 ||Daylight ||6500 ||76 |
|Colour 950 ||Daylight Triphosphor ||6500 ||95 |