Hi @BlackRose67,
Ikea’s CWS color bulbs don’t work in my driver or stock as they use the currentX and currentY attributes.
In the driver that smartthings will be updated shortly, I hope, there will already be the ikea CWS bulbs and from what I have seen in the code, it seems that they will use default utils libraries to convert standard Saturation and Hue to X, Y values.
I don’t know if the default libraries to handle those colorControl attributes will be updated in the last beta 42.5 firmware.
We’ll have to wait a bit, I don’t want to waste time doing something, what are they supposed to do