Quote Originally Posted by denial102
He said he tried two bulbs now, the latest one he bought he insisted the shop test!

Maybe he is turning the bulb on and off too quick? - maybe that had some effect in making both of the hps bulbs duff? Could that have an effect - no idea - I've never done that ;-) I would imagine it is not good.
Yea, i guess i missed that part. It sounds pretty strange...If the bulb has been replaced then it leads me to believe then it's the ballast after all.

Remember, HiD bulbs have a cool down period where you can't plug them in for a good 10 minutes.