02 · Color temperature

CCT, Tunable White & Dim-to-Warm

Colour temperature sets the mood of a room before anyone notices the fixture. Two very different technologies get sold as 'adjustable' — they are not interchangeable.

Color temperature, measured in Kelvin, describes the warmth or coolness of white light.

1800–2200K — candlelight, hospitality after dark
2700K — warm residential, hospitality
3000K — standard residential / commercial spec
4000K — neutral, retail, kitchens, offices
5000–6500K — daylight, task, clinical, workshop

Tunable white strips shift across the range on demand — circadian-tuned for residential and hospitality. Dim-to-warm strips shift toward 1800K as they dim, emulating the warm decay of incandescent.

The Kelvin scale

1800K

2200K

2700K

3000K

3500K

4000K

5000K

5700K

6500K

See Tunable White strips →

Questions on this topic

What is the difference between tunable white and dim-to-warm?

Tunable white carries two LED channels — typically 2700K and 6500K — and lets you set any color temperature between them at full output, independently of brightness. Dim-to-warm follows a single fixed curve, shifting toward amber as it dims, the way an incandescent lamp behaves. Use tunable white where the space changes function through the day, and dim-to-warm where the goal is a warm, familiar dimming feel.