I have grown with both white and Mylar....

I actually settled on those water heater blankets that have the foil and fiberglass insulation.

Using these HID bulbs can be scary and the water heater blankets give the added benefit of safety if a bullb were to go XPLODE!
HARDDON Reviewed by HARDDON on . small grow area...lighting Hey, my grow area is about 7 square feet, what is the light ratio for veg state? gotta know before the seeds pop! Rating: 5