I'm growing 3 skywalkers and a jellybean kush right now. My skywalkers are only a week old, and they've been under a 400 watt metal halide light in a 2'x2'x3.5' fridge grow box. What's interesting is that this is probably way too much light for this box, but I've got ridiculous amounts of air flow and a CO2 setup (30 gallon composter) going right into the intake and temps are running 68-84 or so. It comes out to 100 watts/sq ft (4 sq ft and 400 watts), which is how much energy I've heard the sun puts out. I know people say it's impossible to replicate the sun, and I know the spectrum isn't quite the same, but I think my setup has an equal intensity. And this high light intensity has led to extremely close node spacing. I mean really really tight node spacing, like 1/4" spacing. Here's a pic, with a mechanical pencil in the view for perspective. The plants aren't real big yet but I think this is going to make some really dense nugs due to the tight spacing. So what do you guys think? Am I wasting my electricity or will the close node spacing make a significant difference in yield or quality?