I am in the process of changing a FOWLR to a reef tank. I want to get these lights for my 72inch 125 gallon tank. The 72" is over 800$ If I just get two 36"-48" sets couldn't I cover the same tank for about half the price of the 72" unit? Would the PAR be different for the smaller sets than the large one? I need LEDs because my aquarium is in my FL room under air with a chiller but still I don't need Amy extra heat. Thanks guys. Also are there any suggestions on a less expensive LED system that may work for me? All I have now is a Duncan btw. And I am using some old rusty STARK LEDs that I got from a LFS and only the blue LEDs work lol I took down my T5 system it was just too hot.