I have two 72" Beamswork DA fixtures and like them very much, especially when fitted with the optional dimmer/timer module ($15 each). The only downside in a fixture this long is they do tend to sag a bit in the middle. I fixed that problem by fitting a small plexiglas support in the center of each fixture. That said, if I had to do it again I might go with two 36" fixtures for each 72" tank so I could control the lighting independently in each end of the tank.Thanks for the offer. I have a 48” LED Finnex and a 48” LED Current USA. I just need to order new power supply for each. I may even order a 72” Beamswork as they are pretty reasonable priced.