Love the light & effects it has on my corals, the low profile & sturdy legs to set on the rim of the tank, but easy enough to slide from front to back when I am do any maintenance. Cons: I wish the cord was longer and 2) I wish I would have waited to get it until the programmable timer became available. I use this setup with my LED's which have a timer and are programmable. But the T5's are only on 8-9 hours/day, so I guess it could be worse. :) I just have to get up off my lazy bum and flick the light off once a day. No biggie. I can live with it. Overall, very satisfied with my purchase and the price was a good deal.