The colour code of a lamp consists of three digits and provides important information about the quality of the light. This code combines:
- The colour rendering (CRI) – the first digit
- The light colour (Kelvin) – the last two digits
This way, you can see at a glance what kind of light a lamp emits.
What does the colour code mean?
1. Colour rendering (CRI)
The first digit indicates how true to life colours are rendered.
- 1 = very poor
- 9 = excellent
The higher the number, the better colours look under the lamp.
2. Light colour (Kelvin)
The last two digits represent the light colour, expressed in Kelvin (K).
- Low value = warm light (yellowish)
- High value = cool light (white/blueish)
Common colour codes
| Colour code | Colour temperature | Description |
|---|---|---|
| 827 | 2700K | Extra warm white |
| 830 | 3000K | Warm white |
| 840 | 4000K | Neutral white |
| 865 | 6500K | Cool white |
Why is the colour code important?
With the colour code, you can easily choose the right lamp for your application:
- Warm white (827 / 830): atmosphere in the home, such as living room or bedroom
- Neutral white (840): workspaces and offices
- Cool white (865): areas where good visibility is important, such as garages or workshops
This way, you know exactly which lamp fits the desired atmosphere and functionality of your space.