Originally Posted by ford46guy
Originally Posted by Skippy722
HID's don't like being cycled quickly, so it will shorten their life but by how much I'm not sure. Assuming it's the 2011 in your signature, have the bulbs ever been replaced in it?
Nothing in the service records. That is why I'm nervous. I know the ballasts can go too.
If you're nervous about the ballast going, then change the bulbs now. As HID bulbs age, the electrodes move further apart, and that makes the ballast work (slightly) harder to turn the bulb on. 7 years is plenty for a HID bulb.