Stonedpenguin is right, white walls not only reflect more they also dont create hot spots. The foil if has crinkles and such can create hot spots on the plant by reflecting differently and burn parts of it which nobody wants. Mylar is the only thing I would put up instead of white painted walls.
rnf232s Reviewed by rnf232s on . Is it true? i heard that painting your grow area white is better than lining it with foil. is that true that white paint reflects light better than foil? Rating: 5