Is there a difference between Xenon and Bi-Xenon headlights?

I've been looking to buy a new car and have been looking at equipment lists etc. I noticed "Xenon headlights" for a few cars, whereas other manufacturers had "Bi-Xenon headlights". Is there a difference? If so, what is it?



Thanks.Is there a difference between Xenon and Bi-Xenon headlights?
Normal Xenon lamps (as on my 2003 Renault M茅gane) only supply the dipped beam - the main beam is supplied by a separate conventional halogen bulb.



Bi-Xenon means that the main beam is also supplied from a Xenon source.

There are two methods of doing this - use a second Xenon bulb in the separate main beam reflector each side (e.g. VW Phaeton), or use a motorised shield to provide both dipped and main beam from one Xenon bulb each side (e.g. Lamborghini Gallardo).Is there a difference between Xenon and Bi-Xenon headlights?
when i worked for hella making headlights for jagX150 cars, i made both xenon and bi-xenon headlight units. the main difference was an extra motor on the lamp module for xenon units (i think i have this the right way round). this motor is used direct the lamp in sinc with the stearing. the bi-xenon units had just one motor for up-down movement of the lamp.