I have 4 of these lights for two 40 growers, two for each. I also have 2 xr15 g5 pro ecotech radions over 75 gallons alongside the 40. The spectrum I set these lights to is very close to the eoctech lights running in Coral Lab ab+ or the LPS profile. On each tank I controlled each channel (blue/white) from a separate power supply. The power supply can be separated from each channel, so I connect the two blue channels of the two lamps to the same power supply and connect that source to my own timer. This way I can have both lights turn off blue first, then white, then white for the last few hours. You are perfect. My rbta is very happy under the light as are my zoas, mushrooms, linden and so on. You also look very beautiful. I had to trim the edge of the top plastic rim of my 40's breeder to make these headlights work for me, but if I had more time I could probably find a way, but I was in a real hurry to turn on the headlights. I highly recommend checking out these lights, especially for $50! Great offer.
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