Run life on an hid if I remember correctly is around 3500hrs. Output will slowly drop over the life of the bulb. It's been 3 years, I'm due for some new bulbs...
And as stated, relays. LEDs don't compare in output to an hid anyways. If your set on LEDs, you can make them fit, but you have to do some hacking at the supports to allow room for the fans.
And as stated, relays. LEDs don't compare in output to an hid anyways. If your set on LEDs, you can make them fit, but you have to do some hacking at the supports to allow room for the fans.