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180n
Xenon lamps*
The xenon lamp provides forward illu-
mination with significantly more bright-
ness and uniformity than the traditional
halogen lamp.
In a xenon lamp, an electric arc replaces
the filament in order to generate intense
illumination. A gas mixture in a quartz
glass tube with metal vapor is ignited by
a high electric voltage. The arc that is
generated is then sustained by a lower
voltage. When the lamp is turned on,
there is a brief warm-up period.
Maximum brightness is attained in
approx. 15 seconds.
390de134
Xenon lamps provide significantly
improved visibility, especially during
adverse weather and poor driving
conditions e.g. driving at night in heavy
rain or through road repair areas where
there are no lane markers.
Vehicles with xenon lamps are equipped
with an automatic headlamp range
control. Thus the highway is always
optimally lighted and drivers in
oncoming traffic are not blinded.
Xenon lamps make a significant contri-
bution to highway safety since other
highway users, bicyclists and motorcy-
clists in the right lane, and pedestrians
are more easily detected.
Online Edition for Part No. 01 41 0 155 307 - © 09/00 BMW AG