Yah, but 12/12 makes it flower, so it'll help u get quicker bud, and good bud at that. But it doesnt have all the grow time. for the plant to get nice and big. But i cant talk i got mine on 12/12 pretty much. give or take, im not sure exactley, im doing mine in my window. with a white cardboard display around it minus the window side for good reflection. and i just now put saran wrap over the cups to hold in moisture, only a few of them have just started to sprout