I have a small grow tent 24x48x60 with two grow lights - a Mars Hydro 1000w and a Bloomspect 1500 w. The plants are doing amazing - almost too good to be true. 100% success in clones and they grow FAST! My question - is there a downside to over-lighting ? Should I have just one 1000W+ lamp for each tent or is it best to use just one per tent? Heat does not seem to be an issue.