Honestly I was tired swapping Mh bulb every 8 months and t5 bulbs as well. With technology advancing year by year i decided to pull the plug on the anti straton led because it would light up my whole tank with one unit. The colors I get with the straton is insane comparing to the MH/T5/reef write I used to have. Electric bill cut down also, not having as much heat issues with the temp rising and my evaporation slowed down a bit as well. So over all I'm very happy with the new lights.What made you change your light fixture?