Control Yeelight Bulbs with color temperate and brightness instead of RGB

I got two Yeelight Bulbs from type 1SE Color.

In the yeelight app you can switch between colors and white light (with different color temperatures).

While colors is nice to have, I need the full brightness of the yeelights, which is only accessible in the white light mode - in color mode with white color they are pretty dim.

When I select a desired white color temperature and full brightness and switch to HA and save this status in a scene HA will only safe a somewhat similar color and full brightness in the color mode.

I access the yeelights with the home kit controller integration.

How do I switch in HA from the color mode to white with color temperature? :thinking: