I have the same one for my discuss tank but I have not hooked it up because they seem awfully bright. A while back I bought a set of three (i believe you can hook these one up in series as well) from one of the guys on the URS. He made them himself but what I liked about them was they had a dial for intensity, you could make the lights brighter or dimmer. DR Bronx do you happen to remember who that was, I have mine on timers and have been running for close to 4 years now without any issues. If you could find out how to get ahold of them they work great and were cheaper than the ones your looking at.