Xenon output is a very clean, white light.Quote:
Originally Posted by letherm
Bi-xenon I believe is more of a "rainbow" effect when you shine them against a solid wall. [bigwhistle] :wasntme:
Attachment 180030
On a serious note, my understanding is that "bi-xenon" refers to the fact that the single xenon globe behind the "projector" lens in each headlight operates in both high and low beam - a shutter directs the light to give the different light patterns. In the early D4's (like mine) - this light gives me both high and low beam. The larger light lower in the cluster which has a halogen globe operates WITH high beam and is referred to as an "in-fill" light. These are generally pretty useless as they tend to point upwards (possum spotters) and cannot be adjusted without adjusting the whole headlight assembly, which in turn puts your High/low beam "bi-xenon" out of adjustment.
I have never bothered with the "in-fill" lights as I have extra driving lights which pretty much make them completely redundant - but I have recently replaced the halogen globes in them with Stedi "copperhead" LED globes which has made them at least appear white rather than dull yellow, and does give a little more light if I am driving on high beam without the extra driving lights.
I'm not sure how the headlights / globes are configured in later models - mine is a MY2011 model.
