I am in the same situation, looking for lights for a 30" tank. My LFS uses a Maxpect 160 watt Razor for one of their four ft. By four foot coral display tanks and two Radion units for another same sized tank. They say they are happy with both, but give the edge to Maxspect for features such as adjustability. There is another thread on here (Advice on Maxspect LED units), with a lot of helpful peoples opinions. Hope that helps. Mike