it was 23 im not counting the one lagger that didnt take off and stayed likeless than 10 inches the whole run i only got like 1/4 off it.., but everything else was vegged for 1wk-10 days under the 1k then lst'd vegged for 1-2 more days, then flipped into flower. i kept the MH in for the first 2 weeks if 12/12 then switched in my hps. (I BELIEVE THAT IT DEFINITELY KEPT THEM SHORTER THAN I WANTED) almost too short my canopy was only 20-25 inches deep from the 1 gallon bag