I have a 10watt RGB spot light, that covers about 12" x 12". It is nice. the one i have has dimming, wash, fade,15 colors, white, all on a 24 button remote. I turn it to blue and dimm it down for night time. It was less than $30, about 6 months ago, and well worth it. I have it on a 50 breeder with 2 250watt MH and 2 96watt compacts, and when I turn the RGB to slowly fade and wash through the 15 colors it adds just enough to see colors that are amazing.