they are about 5 ft tall and thanks for the advice. i think i'll start in a bucket next time so i can be closer to the ground. that system they start about two ft off the ground. i had no choice but to cut the top down. it was touching the light and burning. i leaned it to the side to avoid the light. it seems to be doing fine now. the buds are growing bigger everyday. i thought that if i grew in a smaller room the heat would become a big problem. i just got a portable ac for them in their grow space. (i spoil my kids to death, i know LOL.) i'll post pics of progress tomorrow. again thankx for the advice.