Controlling BLE ceiling light with HA

Color Temperatures: Correct (ish), my light can get a lot Yellower / whiter with the remote

Can you try setting the cold_white_color_temperature and warm_white_color_temperature configuration options for the light? I haven’t documented it (will do), and it defaults to the values supported by my light - but the values are configurable. See here for an example: Cold White + Warm White Light — ESPHome

Brightness: If the value is above 50% or so, the temperature can still change, below the 50% value, the color temperature stays the same, so i’m not able to dim to a warmer color.

Interesting. Not sure what the issue might be… I suggest we resolve the temperatures correctly (see above), before we tackle this issue.

Question: Is it possible to retrieve/see the state the light is in when controlling it with the app or the remote? This way i might be able to see what my maximum and minimum values are.

Not currently, and I haven’t explored the possibility. I’ll have to see whether the lamp broadcasts any packets that I can catch. You could try recording the packets from the remote - though my code is not using packets compatible with the remote, so not sure I’ll be able to understand that data. How about controlling the light with the LampSmart Pro app - does that work correctly? Do you get the same range of temperature/brightness as with the remote?