Shelly RGBW2 with RGB no white LED strip?

Configuration
1

Hey everyone, I have an LED strip that has only RGB, no white. How do I use that properly? I’ve wired it according to the docs. 12V, R, G, B. White is unconnected.

In the Shelly console I can’t seem to find a setting that allows for RGB only strips. It only has white only and RGBW.

The behavior of the LED strip integration with Home Assistant seems to expect a white component. I can see this especially when using color temperature. Warm is yellow, cold is completely off.

How do I have to configure all of this to make it run as expected?

Thank you!

2

You can’t. Well, maybe you could, if you applied some math to map values. The Shelly RBGW either supports RGBW, or 4 white channels.

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3

That is interesting because the wiring diagram clearly shows a mode with only RGB and no white. image

4

Yes, but then you get what you saw. Note that not all LED stripes are the same. Colour calibration is hard. I’ve found that getting good, dynamic colours out of a strip without a white channel is really hard.