I have always found that June 1st is the magic date. I never put clones out before then or they always flower on me. I would at the least hang a 14 watt fluorescent flood light over it at night, for 18 hrs of light per day on a timer. They might snap out of it and you can put them outdoors...
I saw somebody growing with vertical lights using 400 watt induction lights. He was growing vertically with light movers. We compared the induction light compared to the t-5s. The induction lights were way better than the T 5s. It seems like you lose alot of lumens when you use the t 5s...