a few weeks ago my HPS blub blew it was over a year old and i figured it was its time. I didnt have a spare so i put my MH bulb back in so i had light while the new bulb got here. When i installed the new bulb it came on for 15 mins then went out ballast was ticking so i turned everything off and made sure i screwed it in all the way 30 mins later i fired it back up it stayed on for 30 mins or so then went off ticked for a few seconds then i could hear the fan kick on and it would try to restart light would flicker and then nothing... I have another new bulb on the way but does anybody know what is going on here