I've been using this stylish light on a 37g reef cube for years and it works well. They're not particularly well built, cheap knobs etc but for the price you can't beat them. This one has 2 stubs, all previous ones had 1. They don't last forever, but you'll get a good year+ of them. The lighting is fairly direct, so you'll need a light that's at least 12 inches above the aquarium. One light covers about 24 inches
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