That is a good question , I just put it up within the week.My real concern was my larger shelf which as my Den.'s,a couple of Cat's and my new Slippers.I 'm out of town & didn't get to post any other photo's.I still don't know if I will have enough light for the Cats to bloom well,I guess I will find out.One of them is a Min. Cat the other one might have to go outside,I hope not.I want more control,mother nature can be mean at times!!! I will let you know what happens.This is very new to me,but so far so good. Have Fun,Rich