Well, I found that I really liked the other light I purchased better, so I packed up all the lights that I had purchased and returned them. When I bought them they weren't what I had wanted in the first place, and the way I had them hooked up made it difficult for me to water plants, move them around, etc. They'd said if they didn't work out I could bring them back within 30 days and that's exactly what I did. Now I have the new lights hooked up and I hope these are going to work better for me. It's much easier dealing with one light, two cords, and two chains on each shelf than two lights, two cords, and four chains. Ended up saving about $100 this way.