Reflectix and a cool tube

I have 3 cool tubes that I use. I found a scrap of reflectix (Home Depot) that with 3 pieces of duct tape turns into an adjustable batwing reflector. By raising or lowering each side you can clearly see where the "brighter " part of the light is directed, then tape it in place. It's a spot-on match for hammered aluminum. This is a 400w hps and there isn't any heat issue on top of the tube .