My 20Watt Roll your own RGB Flood Lights take a lot of effort to build.
I purchased some 10Watt LED Spot lights from EBAY. They are reasonably made and very compact. I also purchased some LED Constant Driver boards from AliExpress.
The intention was to replace the 10Watt White LED with a 10W RGB Chip and then “blob” the Drivers.
I ended up creating a little 3Ch Constant Current Shield from my RGB Kitty Pixels.