Smart Homes

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Why is the color temperature range of RGB lights limited? (feddit.org)

submitted 2 months ago by marius@feddit.org to c/smarthomes@feddit.uk

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For example I have some last gen hue lights 1100 lm. Their color temp goes from 2000 - 6500 K. Why is that? I mean the are RGB, they can do pure blue and pure red, so they should be able to do any temperature, no?

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[–] wewbull@feddit.uk 0 points 2 months ago

The colour temperature scale doesn't contain pure blue or pure red, but that isn't really your question.

White LEDs are really LEDs of other colours coated with phosphors that emit white light of a certain "temperature". The variable "temperature" ones have two LEDs, one at each end of the range and linearly blend the power output of each one.

There's no RGB. Just warm white and cool white.