Some autos are really good my mate done 4 big devil XL and got ruffle 4 oz a plant. But the way I look at it is they need lights on at least 18/6. So that's more $$ on electric bill having it like that for the whole grow rather then my 4 weeks of 18/6 then 8-9 weeks 12/12. Look up "big devil XL" there monsters and the smoke is nice. Best thing about what I just said....... No bs!!! Haha