any light cicle will work 24/0 or 20/4 or18/6 whatever --I grow in soil 2 gallon pots with promix and 3 part advanced nutes and molasses monthly and alittle cal/mag now and then---they grow from seed in 75 to 100 days no matter when you plant them--I grew them in 40 degree weather last winter-----400 watt hps with 5 plants under if ,I know its crowded----some stay very small while others will give you a 1/2 lb 5 small plants gave my 6 or 7 ozs of the larger stuff with 2 or 3 more oz smaller trim and small buds and a box of bud trim .