Here's on for the old school reefers. I'm still running halides on my system. Yesterday I noticed one of my bulbs not on wemhen it should be. Its a retro system and the ballast is a Hamilton (big black box). I turned everything off and back on, nada. I also put a good bulb in there and it didn't fire. I also placed the original bulb that was not firing in my other reflector and it fired up, so its not the bulb. Now, when I turn the ballast on, I can hear it humming and I can see the bulb try to light up, its VERRRRRY dim and flickering, like barely noticeable. But it stays like that and doesn't fire up fully. Any advice?