D^rail
Member
So I've been running my 1000w MH for about 5 weeks now and today I was going to switch it out for the 1000w HPS since i have a switchable ballast. however when i switched to the HPS it wouldnt turn on. I've checked the lamp over a few times it looks fine. and its brand new. so for now i switched back to my MH and it works fine. any ideas on what the problem is? could it be just a crap bulb?