preelude

Correction:

I went through the 997 brochures for Canada and US and I think there are only Halogen, Bi-Xenon, and Dynamic Cornering (997.2) options in North America. If you have single Xenon (HID) it might be an aftermarket HID kit in a halogen housing.

Hootsama

Hmm. Did a quick test for sanity sake and when high beans are activated, both the top (xenon) and bottom (halogen) bulbs fire.

Petza914

That was my understanding which this morning I thought was incorrect - so maybe I didn't learn anything new today. Dammit, because I like learning new stuff

8KaboveMSL

Does anyone have a pic of what the halogen headlights look like? Or would they look the same with the only difference being the bulb inside the top projector assembly?

cvalue13

Have read the whole thread and still don’t know what’s what

preelude

997.1 - Halogen or Bi-Xenon (Bi-Xenon standard on S/4S) - The Bi-Xenon headlight option includes the headlight cleaning and headlight levelling
997.2 - Bi-Xenon or Dynamic Cornering (Bi-Xenon is standard on all models)

Snippets from the US / Canada Brochures:

TobyW

For the 997.1, the only lighting options were Halogen (standard on the non-S models) and Bi-Xenon (on the S models). It is correct that early Xenon lighting systems were low-beam only (using Halogen for the high beam), but this wasn't the case for the 997.

Breizh

From various vids I looked at, if you pull on the headlight actuator (Flash-to-Pass), only the lower halogen bulb will activate. If you push on the actuator, then both top and bottom will activate, as you saw.