if BT not good, could you share a link for something that does work via zigbee or zwave?
i am looking for something with warm white but would be nice to change to any color also…
Initial reflashing can be a little fiddly but if you get yourself a Raspberry Pi 4 set-up, you can do all of the stuff from there.
Oh, and get yourself a smart plug with a manual operation switch, you have to power-cycle the light to get it into reprogramming mode. All can be done without opening the case.
I was able to flash these with basically the same steps as Novostella and they are RGBWW. They are out of stock, and a plastic body. There might be others out there that are flash-able. Its hard to tell with out breaking them open, which I had to do with the Novostella. Even same brands and models switch out the chips.
Here is the ESPHome for these, if anyone stumbles onto this: