So I bought an HID kit last year and its been working ok, aside from the fact that sometimes only one bulb will light up. And even sometimes if they are both on, if I am idling then one will flicker and turn off. I know its not the bulbs, they are brand new. I also have a relay kit which was supposed to fix the problem but didn't. Its almost as if my battery can't give it the power it desires fast enough (its a 1000/850 battery though). Any of you have similar problems or know of a solution? Its pretty annoying.