This is: a thin piece of wood panel cut an inch shorter than the length and width of my cab. Mylar wrapped tightly around it and duct taped to the back side. Holes drilled, sockets installed and secured with a few nuts. btw, right here is the hook up for sweet deals on sockets! LAMP SOCKETS - PHENOLIC (Bakelite) Shell, Medium (Edison) Base - National Artcraft I'm using "C" for My hangers are made of a two long strands of wire, stripped on both ends about an inch or so. Wrap the stripped ends around some screw heads, drive them into a board. Put a nut or key ring around the middle of both of the wires to make a loop, and hang it from there! The air extracting still needs a little tweaking, but check it out anyway! The idea is to pull air up thru the holes in the reflector and the spaces between it's sides and the walls and blow them into the space between the back of the reflector and the top of the box, then out the back. The first 5 pics are my air extraction project, and the rest are a regular hood I made without any fans.