I know this thread is about aquarium specific LED systems but I just cannot come up with the $ for a complete set up. I am currently running mh on both my systems, have a fan built into canopy on both and have no problem with temp. I am however going try some cheap led strip lights from ikea to compliment my atinics. Going with this one to see how diferent colors look in the tank, maybe as moon lights.
http://www.ikea.com/ca/en/catalog/products/50192365
Will update on my opinion of them once installed