I've had these lights for a year now! Not a single problem. Not as versatile as Cadillac reef lights, but way better than the "black box" lights people have been using for years. I love that I can mix colors to my liking. I just wish nicrew would release a controller for these lights. If you have a controller I think they're compatible, but I'm just changing things manually. If you're wondering if they're light, then yes. I have a very deep reef and these lights grow coral red on the bottom about 26 inches from the water surface but they are not headlights. I have double 150 to 120 grams.
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