How a dual beam HID works - BMW Luxury Touring Community
 
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post #1 of 4 Old Mar 22nd, 2010, 7:40 pm Thread Starter
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How a dual beam HID works

Well, this kit anyway.

I ordered a kit for my RT from DDM tuning which I got today.
Looking at the bulb I was wondering how it got it's high/low function.

Something I've never really thought about. I just assumed there would be two envelopes in the bulb assembly....Wrong...

The thing uses a solenoid to pull the bulb backwards into the housing...Making a change from low to high...I just never thought about it......You know what that means, don't you ????
You can flash this HID....

Also the wiring harness for the DDM kit was a dual wiring harness... It will run two ballasts.
The wiring is quite a bit more elaborate than the CQ kit I got...A control box which I'm sure contains a relay or two.. It's fused and want's to be connected directly to the battery. From there it has a plug and play Male plug which plugs into the existing headlight socket.
And plugs for the Ballast and Hi/low wire. Which I now know triggers the solenoid.

Is this how they are all done ? Or are others two separate HID envelopes on one bulb assembly...





John

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Last edited by JPSpen; Mar 22nd, 2010 at 9:35 pm.
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post #2 of 4 Old Mar 23rd, 2010, 8:43 am
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Re: How a dual beam HID works

This is what is normally called a bi-xenon source. It can work one of two ways: the way you just described (the bulb moves back and forth) or with a metal shield that moves up and down the bulb.

Ether way, the effect is to direct the light form hte xenon bulb to different parts of the reflector, thus generating either high or low beams. The idea is to provide you with high and low beams while preserving flashing ability.
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post #3 of 4 Old Apr 4th, 2010, 1:32 pm
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Re: How a dual beam HID works

So how quickly does the bulb move? Would the high beam "flash" or would it be more of a "lope"

Loren

Quote:
Originally Posted by JPSpen
Well, this kit anyway.

I ordered a kit for my RT from DDM tuning which I got today.
Looking at the bulb I was wondering how it got it's high/low function.

Something I've never really thought about. I just assumed there would be two envelopes in the bulb assembly....Wrong...

The thing uses a solenoid to pull the bulb backwards into the housing...Making a change from low to high...I just never thought about it......You know what that means, don't you ????
You can flash this HID....

Also the wiring harness for the DDM kit was a dual wiring harness... It will run two ballasts.
The wiring is quite a bit more elaborate than the CQ kit I got...A control box which I'm sure contains a relay or two.. It's fused and want's to be connected directly to the battery. From there it has a plug and play Male plug which plugs into the existing headlight socket.
And plugs for the Ballast and Hi/low wire. Which I now know triggers the solenoid.

Is this how they are all done ? Or are others two separate HID envelopes on one bulb assembly...





John

WAK1200LT
Loren

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post #4 of 4 Old Apr 4th, 2010, 2:19 pm Thread Starter
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Re: How a dual beam HID works

I'll let you know when I get it installed.


John

Live and direct from the new earthquake capitol of the U.S. Jones, Oklahoma
08 Can-Am Spyder (Miss Lindy's)
03 R1200CLC Capri Blue "Flipper"
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

01 R1100RT Glacier Blue "Lucky"
91 R100GS "It'sNotAMoneyPit"
The voices in my head may not be real, But they have some good ideas!


"I like the wind in my face and Boobies on my back. No, Wait, I got that backwards"

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