I'm not sure if the moonlights are LED's, but if they don't put off heat I would see them as a great alternative to the typical aquarium lights.
I'm also not sure how much moonlights are, but here's a cheap and simple way that I am going to light my tank. I ordered four large computer fans (I think they're like 5"x5" I'm sure you can get smaller) and they have blue LED's built in. I got them on ebay for maybe a buck a piece from Hong Kong. This way I will have cooling and lighting all in one. Just gotta wire them up.