Headlight help

[Noxas]

Hi my bmw currently has installed stock halogen headlights. I was wondering if someone could help to differientiate the terminology? Ive heard of Xenon, bi xenon, HID, projector etc etc. And im quite confused.

I was told not to go with HID's due to that they dont install and work nicely. But then im heard very vague definitions of xenon and bi-xenon. Are they the same as projectors?

Any help on clearing this up would be appreciated.

Thanks in advance!

[jabela]

Projector means it uses a lens in front of the bulb. This can be Xenon or Halogen, usually xenon.
http://en.wikipedia.org/wiki/Headlam...oidal.29_lamps
Reflector is the old kind, and is usually halogen. Xenon bulbs in these don't work well and tend to blind other drivers.

Bi-xenon means it has high and low beams. This uses a shade that moves down when you want high beams.
Non bi-xenon lights will have halogen high beams in separate reflectors.
http://en.wikipedia.org/wiki/Headlam...arge_.28HID.29

[Noxas]

Thanks! that helps a lot