Flat white paint if u cant afford mylar....no mirrors or any other material that concentrates light...hot spots can cause some damage to the leafs
OmegaVermelho Reviewed by OmegaVermelho on . mirror instead of tinfoil? If a person had access to alot of mirror, would that be a good thing to reflect the light? Or would it magnify the light too much and cause hot spots? What I mean is.. instead of painting the surroundings flat white or tinfoiling everything? Rating: 5