Not long ago I got 2 cheap MH bulbs off Ebay, just perfect for my budget. The first a 150 I pushed with a Sun park electronic ballast and it was fine. I like it. The second a 250, I just tried to connect to my ARO electronic ballast. All it does is crackle right when I turn it own and then 'spark' apprx. every second, but the bulb never seems to 'ignite' and burn. I only let it do this for about 15-20 seconds before I turn it off for fear of some other problem, but have tried 3 or 4 times. I have an old bulb in it which is fine. The ballast wattage is appropriate for each bulb. These are DE bulbs. Does this just sound like a defective bulb, or some other glitch?
Thanks
Bill