ok so im going to build a hood for my hps, i cant spend any more $, so bare w/ me. i got the hood put together, but its black inside, so to get the most refectivity from it should i: paint the inside with white enamel ceramic heat resisant paint, use foil, use foil tape, or use mylar, or a combo: eg: line it with foil or foil tape & then paint it, b/c the foil gives the paint a more metal like shine to it.
If you got a old computer case like the tower models. Its the top of the case and you alwayz take it off when workin on them lol. It has 3 sides flatten it out, or just bend it how you want it. Free if you got a case. It would work for any HPS
it is a excellent idea yes but to my dissapointment i just got rid of about 5 pc,s lol arrrrgghhhh..... a idea that i had tho for normal flourescents is the inside of stella cans but cut open and made to sit above the flouroscents inside out but not too sure if thats goin to be reflective enough lol