I bought two of these fixtures from my 150g fresh water tank. Just after the Amazon return period passed, one the fixtures stopped working. It's only been two months since I bought them. When I took it apart to see what the problems was, I found it. The plastic bracket was holding the end of the lights was broken. I can tell from the low quality of the internal plastics that these lights are made cheaply. I'm disappointed in the manufacturer Aqueon and now Amazon because I've wasted over $50.