Hey, Iceman, I have 2 x 300w LEDs (150 true watts each), its not mars hydro, but pretty much identical product. My box is 80x80x120. Right now I think this is the perfect setup for me and maybe after I learn how to get the maximum yield every time with my setup I will think of upgrading it. I am growing 4 plants at a time, I had more, but it was just too crowded. I hope your plant will grow big, strong and healthy :)
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