Ive really been kicking around changing from My current light a 4- T5, 2 150 watt Metal Halide Current Outer Orbit light to an LED on my 90 gal bowfront. I want to be able to keep LPS and SPS The tank is 27 inches deep, will I be able to get away with going LED? Is there a real difference in the lighting growth wise from the cheap $200 units to the expensive units, or is it just a matter of extra bells and whistles but coral growth is the same?

