I too, am in need of some info on these LED fixtures. I am thinking about buying one to go over my 60 cube. I've been told it will be more than enough light over my 60. I talked to a guy at Reefbreeders and he said one 120watt unit would be great for keeping just about any coral. The par readings on these units are very good. They have been out of stock for a few weekd but, should be getting a full shipment in in another week or so. Love to hear more discussion on these lights