Originally Posted by killer
the things thats puzzling is once it fires there's no problem untill I usem them again the next morning or night..if it was a fuse or bad connection it shouldnt work at all..anyone had a similar problem to mine?
Yeah, unlikely to be the fuse. The main reason an HID unit will not fire up (providing the burner is OK) is the battery. Each headlight will draw almost 30 Amps on start up (60A total

). If your battery is not up to scratch, particularly as this is happening first thing in the morning, then you may have problems with one or other of the headlamps firing.
See if you can try it with a brand new heavy duty/high capacity battery, that would be my first port of call.
Hope this helps,
G.