I think quatum is better, i have 1 and the thing is awsome...1 of my catch trys got a hole in it somehow and well needless to say my quatum got soaked with water for atleast 2-3hrs before i noticed and well the thing didnt miss a beat...My hydro store guy said he wouldnt EVER carry lumateks again he would get 10 and atleast 6 would be back in within 3 mths for dying..JMO..Quatum 600w dimmeable cant be beat IMO