I have 4 of these panels and all of them have been purchased directly from Mars Hydro. The first panel was bought some time around June 2015. To be honest I do like these lights and they seem to be very effective but they seem to have some serious durability issues. I bought one light first and within 2 wks a fan went out. After a bunch of emails back and forth I was sent a fan and everything was hunky dory. I bought 2 more panels. Suddenly 2 banks of lights went out on one panel within hours of each other. I don't care how I switched the wiring from the drivers around the bad 2 banks stayed out. So that was sent in for warranty work at my cost of 50 bucks with insurance. Got that one back and once again everything was hunky dory. But then again a bank of lights went out on another panel and I did the wire switching around again as instructed but the bad bank stayed out so that one went in for another 50 bucks. At that time I realized that if I wanted to have 3 panels operational at all times then I would need at least 4 panels so I ordered another one. That probably wasn't my brightest move. Now guess what? A bank of lights went out on another panel yesterday and I just got done with the wire switching to no avail. So now I have to start the warranty hassle again. My temps might get up to 90 F but normally are from 70 to 85F and my humidity stays around 30-45% with good air flow. I can't be the only one to have these problems can I? I will now have 150 bucks in shipping for warranty repair. Anyone else have thes problems? Pipes