I just bought a 250 watt 15k XM bulb and I exchanged it with the bulb that was already in there and the bulb didn't go on when I turned on the ballast so I just turned it off. I took the bulb out and slid it back in to make sure I hadn't put it in wrong. I switched the ballast on and this time I let it on for a minute to see if it need time to start, but nothing. I took the bulb out again but this time the center part that usually lights up wasn't clear, it had a dark grey color kind of like that of liquid mercury. Can anyone help me with what's wrong? Maybe if there's someone around the area that runs 250w MHs, if I could stop by and test it out on your system. Let me know, thanks
Fortunato
Fortunato