I ran one on my biocube and loved it. Purchased it used and it was well out of warranty. It ended up flickering and so I tucked it into a corner. I ended up missing it and figured I would see if kessil could at least fix it for cheaper than buying another one, but they actually replaced it free of charge, no concern with when or how I purchased it(now that's service. Anyways it's brand new, plugged it in just to test it out, and that's it. I'll be running a 350 and T5's so there's no need to keep a brand new light laying around. $150 picked up. If you need pics I can text them to you, and I also have the paperwork kessil sent me. The light just arrived today.