i just thought of this. i guess u can call it the poor man's JDM headlight haha.

so basically, i saw some H4 projectors for sale and i was thinking about giving them a try. i was thinking about putting them where the high beam is and them use the low beam pattern of the projector as fogs and the high beam as well, high beam. do you guys think this will work. the only concern i am having is if a H4 projector housing even is possible. there's 2 filaments inside the bulb and one is shielded at the bottom in a H4 bulb, but inside a projector housing, i don't see why it would make a difference with high setting and low setting since there is still a light blocker inside the projector shielding the bottom half of the crystal lens.

thanks for inputs.

o yea. this solves a few problems:
- dont have to put anything inside the grill area ( make room for intercooler etc.) cleaner look.
- if u have blacked out painted housing. the high beam wont look darker than the low because both will be projector
- everything is inside the headlight housing making everything compact, and protected by the plastic lexan outer housing.

 

I'm pretty sure a dual filament bulb won't work in a projector housing. For high beams, you DON'T want any kind of shield cutting out half the light. Also, since neither filament is in the center on an H4 bulb (as 9005 and 9006 filaments are), the beam pattern would probably be totally screwed on both low and high beam function. The only way I know of getting both a high and low beam out of a projector is to have a movable shield, like what is used in bi-xenon HID projectors.

You could always retrofit some bi-xenon HID projectors into the lowbeam housing, use that for your low and high beams, and then put foglights inside the high beam housing.

You might even be able to rig up a 9006 or 9005 bulb to work inside the bi-xenon projector if you don't want to spend the money on HID bulbs and ballasts. I thought about doing this as a temporary fix if one of my HID bulbs ever went out. I think Tony the Tiger (H-T user and resident HID retrofit guru both here and on hidforum.com) has tried it, he said there's a nice blue line at the cutoff, even w/ a halogen bulb inside the bi-xenon projector.

 

i'll hit up the hid forum and see what i can find there. what if the projector didnt have a shield and the reflector was engineered specifically for H4 bulbs? still trying to reason if a H4 projector is even possible. thanks pat

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tekstyle &raquo;</TD></TR><TR><TD CLASS="quote">i'll hit up the hid forum and see what i can find there. what if the projector didnt have a shield and the reflector was engineered specifically for H4 bulbs? still trying to reason if a H4 projector is even possible. thanks pat</TD></TR></TABLE>

A projector without a shield throws LOTS of light where you don't want it. I had some projector driving lights years ago, no shield inside. They put out alot of light but basically acted like high beams, not to be used if oncoming vehicles are present.

 

i know a projector without a shield will throw a lot of light. i was thinking about using the shielded filament in the H4 as normal driving light so no light gets reflected on the bottom half of the reflector, therefore no light gets through the bottom half of the lens. where as for the non shielded filament can be used as high beam.