If your car comes with original OEM xenon headlight assembly,
then the OEM bulb mainly use two brands, Philips or Osram.
Of course very little car models is use GE,Toshiba Harison.
Original OEM bulb’s model is: D1S,D2S,D3S or D4S, these
bulb’s is match with HID xenon projectors. If your original
equipment is xenon version without projector, then the bulb
model will be D1R,D2R,D3S,D4R. These bulbs always install
in the HID xenon headlight assembly with reflect bowl.
When the xenon bulb comes out from the factory, in the instruction
of the bulb, the life span is 2000 hours. If the bulbs in
your car already used for a long time, the bulb will be
yellowish and lead to the lumen come lower, then you need
to change the bulb at this moment.
But under a situation, if you changed the bulb, and the
light still very weak, then the problem will be on the projector.
If you are good at DIY, we suggest you change the projector,
then the light will be bright again. (Because projector
is also a optical system, if the reflect bowl of the projector
aged, the light output will be no good.
We can supply all types of OEM HID xenon bulbs for your
choose.
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