Industry shorthand for dim-to-warm products, in which a single dimming control shifts output from around 3000 K at full to about 1800 or 2200 K at low levels. It reproduces the amber glow that people associate with dimmed incandescent and candlelight, valued in restaurants, hotels and homes. Each product follows its own CCT-versus-level curve, so mixing brands in one room can look uneven.
Restaurant wants warm dim on the pendants so the room goes amber at dinner, check they're on the same dimmer type as the downlights.
Also heard as
- dim to warm
- dim-to-warm
Related terms
Tunable white
LED lighting whose color temperature can be adjusted, typically between warm and cool whites, by mixing LED channels.
CCT
Correlated Color Temperature: the warm-to-cool appearance of white light, stated in kelvin.
Dimming curve
The relationship between a dimmer or control signal and the light output it produces.
Pop-on
An LED dimming fault where fixtures stay off at low dimmer settings and then suddenly turn on at a higher level.