I run 50 wsf now but I remeber reading somewere that 75 was the point of dimishing either way 115-120 is way to much.
u.g.u Reviewed by u.g.u on . 115 watts per square foot I plan on using around 115 - 120 watts per square foot during bloom in a room 4x4 or 4x6. Is this way overkill for very high quality mary jane? Rating: 5