JonnyBtreed
Well-Known Member
yes, but red and blue don't reflect red and blue the best. They would also I'm sure soak up a lot of excess heat causing your grow room to get way to hot. And the reason mylar works better than foil is it doesn't crinkle like foil does. Foil concentrates heat spots on sections of your plant.... Burning them eventually. Sure with CFLs it doesn't matter AS much as HID lighting. But, its just principle man.