Very bright, pretty easy to assemble, easy to use!
For 10W RGB LED Soldering Kit Module With Heatsink
These are fun! They're like a very bright flashlight with adjustable colors, and fairly easy to assemble.
There isn't too much documentation beyond which parts are included, but you don't really need any - the 6-pin chips have the large grounding tab reflected on the board to help you orient them, and the big LED has '+' and '-' etched onto the package.
And it's nice that while the LED uses 12V DC power, you can drive the 'Red', 'Green', and 'Blue' signals with low-voltage PWM signals. I've used 3.3V successfully, and I think the datasheet says you can go as low as 2.5V for the logic levels.
One note: it's nice that there are a couple of different options for the 5-pin connector, but if you use the push-in crimp connector, you might want to place a layer of tape or insulation over the protruding metal pins on the plug; depending on which way you solder the header on the board, they might short against the big heatsink.
