Mine is 12 RB and 12 CW. I got it from a place simmilar to rapidled, just can't remember the name. The only complaints i have is that the lights are dim at the very end and corners. I have 80* optics on the middle row of LED(there are three rows). The others have no optics. Also, the color blue does not pop out in my tank. If i added a blue or violet led blue would have popped. Greens, reds, pink, red, and purple really POP. Growth is really good on SPS but all others aren't growing like they should. If i could change anything, i would get a larger heat sink, get red and violet, and not have gotten the dimmable(waste of money unless you have something you can program to chagne the brightness without you having to manually do it).