I have a 24" RB blue led and I love it. It really makes the flourescent colors super bright- not like any t-5 bulb or VHO. Some other LED's that i have seen there is a spotlight "look" that penetrates the water-not with RB's, they have uniform brightness. You most likely know that they are adjustable...i always have it maxed out though. Also the mounting options are good. You can mount them to most canopies although I have them hanging from my canopy with stainless steel chain.