Left HID Yellow; Right Still white. Whats the problem?

[Psy-q]

Hey guys. It has been a long time since I've posted here.
I've noticed a few weeks ago my driver side light is becoming more yellow, sort of like color of a halogen bulb. My other HID light is still bright and white.

The kit is 6000k, 35w and it is a year and a half old.

Should I replace both the ballast and the bulb, or is it just the bulb that needs replacing?

What do you guys think? thnx.

[cwp_sedan]

It sounds like the bulb is dying. Usually that's what happens when it changes colour like that. You don't have firing or flicker issues so I would rule out ballast/ignitor.

[Psy-q]

Nope, no flickering issues, and fires up every time like a cahmp ( knock on wood). Im going to call for some new bulbs next week then..thnx!