In a veg. chamber that 3' x 3' x 2' tall, what kind of light would you recommend? I want to maximize the amount of time that I can have the plants veg., but I'm concerned about heat from the light burning the leaves. I guess what I'm asking is what kind of light would allow me the most space (ex. the light can be relatively close to the top of the tent without causing damage, and can be close to the top of the plant without burning)?