[the brave little toaster]

is it possible to switch out an H4 normal lo beam only d2r HID bulb, with a bi-xenon lo and hi HID bulb without changing of the igniter and ballasts?

 

[hayalex6]

yeah you should.

 

[hotbox05]

yea it'll work

 

[the brave little toaster]

i dont need like a hi/lo solenoid controller or sumthin?

 

[hayalex6]

again, it will work fine.

 

[Padanky]

The ballasts in a BMW are not bi-xenon, there is a flap that covers half of the beam, and when you flash the brights it lifts the flap and the full beam is revealed.

 

[hayalex6]

with the H4 normal xenon bulbs, there is a halogen filament for high beam, and then xenon for lower (since H4 is dual filament bulb).

With H4 bi-xenons, the high beam filament is replaced by another xenon one.


Negatives about bi-xenon dual filament bulbs? They won't last as long as low beam only xenon's.

 

[Padanky]

There is only a negative and a positive wire on the BMW xenon, the highs are ran seperately with a flap on actuator which opens and closes. The ballasts are not set-up for high and low.