I've had the 36" version for a couple of years now. The fan sounds like a jet engine. I've always meant to replace it with a better fan, but just haven't gotten around to it, so I don't run the fan at all. Couple that with the lack of individual reflectors, and I can say I should have spent a few more dollars for a better fixture. Well, I should be fair, and more specific. I can grow softies and some easier LPS with it. It just won't grow anything too demanding. Hope this helps.