DIY Lighting for Canopy

[Jack]

Yah, I hear ya Andrew. My 400w is parallel right now and I would like to put it perpindicular also, but as with you, space is a limiting factor. I think I have 18" but I would love to stuff some VHO in there while running a perpindicular MH with reflector. I am running 2x 40w NO right now and I wonder if I could try and make the MH fit perp. Hmmm, how close is too close for the tip of the bulb to be to a VHO or NO bulb? Is heat a problem with flourscents?