Scott -
Here's a link to the lights:
http://www.aquaillumination.com/sol/#intensity
Each unit has 8 pucks in it. Each puck contains 1 warm white, 1 blue, 1 royal. Each of those colors is operated on a different channel...So you can control on/off and intensity for each color. Dependent upon intensity, you can adjust the color temp. So if you look at the tank and think its too blue, you just bump the blue intensity down a little, and bring the white up a little (so you have the same actual PAR)...Or visa versa.