If I was you I would cus out the people at your hydro store for not helping you out after you paid around $500 on fucking light bulbs and tell them your going to buy all your equipment from Ebay because everything cost less and they actually will return defective products. Well, the company I bought from on Ebay sent me a brand new 600w bulb because the one I bought had a little tiny broken piece of glass inside the bulb, but the bulb was intact so it must of happened during the manufactering process. I'm using the bulb now with no issues and I got a free backup bulb :)
I still can't believe you spent around $500 for those bulbs and the hydro store or the manufactuers won't help you out?!? IMHO If I was you I would never do business with either one of them again. Especially
hortilux, there a million dollar company and there blaming it on lumatek instead of trying to help you out, which IMO lumatek makes great ballasts.