one of HID lights won't turn on Options

[cellocinema]

odd but it doesn't happen always. and when it happens, i can just turn off HID, accelerate over 3000RPMs and then turn on the headlights with no problem.
is this something to do with old battery or old alternator? i'm a bit suspicious of alternator and plan to check the amperage output if it could be a possible culprit. any opinion?

This post has been edited by cellocinema: Jul 16, 2016 - 9:22 AM

[Bitter]

I've read about this problem on other cars, usually it IS a voltage/amperage issue. Ballasts can take a large amount of current to start, any weak wiring along the way will act up at ballast start, since both draw off the same power source the one with shorter wiring gets power more readily and will start while the one farther away will get a weaker power and fail. Try running a heavier wire harness to the ballasts and see if that fixes it, theretrofitsource.com sells some good harnesses for cheap.