So a question in general to 400 watters-- how high off of the top of your guys plants do you keep your light? I'm running a metal halide in veg, working on a vert setup. I'm realizing that the height I keep the light is going to affect the size and angle of my shelves if I wanna get the maximum lumens on each plant, but I'm noticing I keep my light a lot closer than a lot of you guys. I do have an air conditioned intake that points right on my plants I guess. But I mean some of my plants I keep like 4-6 inches from my light.