Btw, these are all of the Magic Home devices available.
Zengge is the main manufactor.
I personally own 12 of the ZJ-MWIR-RGBW controllers (Mini RGBW IR).
They work if I set the device to RGB. But in that way I’m not able to adjust warm white correctly and Alexa doesn’t recognize the device as RGBW, just as RGB, so no voice commands for the white channels.
Do you think you could take a look at the controller to make it work correctly?