You may remember the first RGB light from tobe.nimio.info. They have made a new and improved version. A schematic is also provided.

“After making my pyramid mood light with 12 high power leds, i decided to make a bigger and better version, without the emphasis on the low budget.. After all, the pyramid mood lamp was more of a proof of concept with its shortcomings. I wanted the new mood lamp to be more powerful, so it could also be used in daylight conditions. I did this by using a z-power 3 watt RGB power led. This one led is far more powerful than the 12 ones combined i used before. The colors also mix better because of the wider opening angle and because the rgb chips lay very close together.”

Via: Make