Yes, I was about to switch from the vegetation stage to the flowering stage. So i was about to go from 24 hours to 12 hours, and I was going to get rid of the fluorecent and use the HPS for the 12 hour (flowering stage). I had tested the light, and it worked great, then about a week or two after that i went to turn it on and it did not turn on (no buzz or glow) The ballast looks like a small transformer in the back of the light. The size of the area i'm lighting is about 4 feet by 4 feet, and around 5-6 feet for height. The HPS is a 100 watt light. Should I get a new bulb for it or just scrap it and use a whole different system? If so, what kind of system should I use?