I have one of these Z-Wave CCT dimmers, and when I first added it to Home Assistant it showed up as an RGB+CCT light, which was annoying, but at least I could set the color temperature. A restart later, and now it shows up as only an RGB light. I can’t set the color temperature anymore, even calling the light.turn_on service and defining a color temperature manually. I have had a similar problem with some Zigbee lights through deCONZ before, but usually after a restart they will go back to normal. Is there a way to force Home Assistant to see lights as the correct type? I’m not sure if this would be Z-Wave or Zigbee specific, or if there is some universal way to force a configuration. The fact that I’m seeing this type of behavior with two completely separate integrations makes me think I must not be the only one facing this, but I can’t find any other references to this issue.
Did you find a solution to this? I have a similar issue with a Zigbee LED controller. The device has a few modes and is set as CTT on the device switches, but shows up in zigbee2mqtt as an RGB controller
You could use the template light to make a new light that reports CCT and adjusts the RGB channels appropriately. Template Light - Home Assistant