im using this reflector for 3 weeks already.
all what i can say:
*thin foil is doing great job, no hot spots or any burned leaves.
(i think its myth about hot spots) how many of you actually did burn plants by using foil? i got foil on walls and reflector. maybe HPS could make hot spots, i really dont know.
*no fire hazard (its bearly warm inside the box).
*wires are sealed in connector, no need to be afraid from electricity
*foam plastic doesnt melt, it even hasnt shown any signs of melting
*its easy to update this reflector. i made 2 more slots in it, and im using 1 40w CFL and 2 20w CFLs now.
PS i added one more reflector like this with 1 light bulb on side.
PSS you can ask me other questions about this reflector, i would be pleasured to answer you.