I read a lot of reviews before buying and saw a lot of mix. I decided to buy 3, two for my 55 gallon and one for my 40 gallon breeder. Thinking the worst might happen I might as well return them. So after receiving them, the instillation wasn't as difficult as most reviews make it seem. The screws you see in my photos are not easy to hand tighten. In my opinion, that's good, which means they don't fall into my tanks. Each screw has a place where you can screw it in with an Allen key, making screwing in and out much easier. Depending on where they are placed, the lights easily cover the entire tank. Very bright in both blue and white light.
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