They have 5 LEDs inside. R, G, B, 2000K white and 6500K white. You can only get a mix of these.
If you use the RGBW instead of only the whites you'll be able to get a much wider range of colors.
this post was submitted on 28 Jan 2026
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Can you manually adjust the colors? Like slide rgb to whatever? If so, the color temp is likely a convenient software UI choice.
The color temperature refers to black body radiation spectrums. At too low a temperature, it would just be a dim red (or eventually just invisible infrared). At too high a temperature, it’s basically just white already, it might shift to being slightly blue but not that much.
2000K - 6500K is about the limit of what black body spectrums could reasonably be converted to RGB colors.
Here’s another source talking specifically about light bulbs with some comparisons:
https://www.e-conolight.com/blog/post/warm-or-neutral-which-is-the-white-for-you
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.