# HID conversion kit High/Low beam

**URL:** https://forums.speedlife.net/t/hid-conversion-kit-high-low-beam/135090
**Category:** Canada Nissan Automotive
**Created:** [January 9, 2008, 2:34pm UTC](https://forums.speedlife.net/t/hid-conversion-kit-high-low-beam/135090 "2008-01-09T14:34:18Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![pcproa](https://avatars.discourse-cdn.com/v4/letter/p/c5a1d2/32.png) [@pcproa](https://forums.speedlife.net/u/pcproa)
#### Post date: [January 9, 2008, 2:59pm UTC](https://forums.speedlife.net/t/hid-conversion-kit-high-low-beam/135090/2 "2008-01-09T14:59:00Z")

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… That was a difficult read.  
Anyway, the most important question, What kind of car is it?

A lot of cars use a Dual bulb where basically one Halogen bulb has two different filaments.  
_It is USUALLY in this order_ The filament that is farther out in the casing acts as the Low beam and the filament that is closer to the base usually acts as the highbeam.  
Needless to say, the filaments are never on at the same time, but alternatively to the other depending on the setting the user selects.

Now HID kits (Just the kits, not the OEM HID systems) drive high voltage through a package of salt (Xenon) and the lit salt is the filament in this case. HID bulbs, being D2S, D2R, D4S, D4R only have one packet of salt for the low beams.

Please read this closely. You should never NEVER install an HID Kit. They are simply D2S bulbs that are re based to fit on a 9006, H4, 9005, etc etc Halogen housing. Unfortunately with this, it is near impossible to achieve the same optics as on a Halogen Bulb… for numerous reasons such as intensity and Placement. Usually HID Kits produce a lot of glare. This is particularly noticeable when an OEM headlight uses a Light Bezel rather than shining the HID bulb through a Projector.  
The best way to acheive an OEM HID look without buying an HID equipped car from the factory, is to Retro Fit an OEM HID Unit into an existing housing. It won’t be perfect because of things like the Freshnel lenses on the stock housing, but it’s usually far better than an HID kit.

Anyway, to try and answer your questions:

> [@What car should you be driving?](https://forums.speedlife.net/t/what-car-should-you-be-driving/2781/14):
>
> 1. Could it be because she bought a high beam hid bulb kit ?

Not because she bought an HID high Beam kit. There’s actually no such thing in Kit form. There’s HID BiXenon from the factory, but that uses a movable shield to differentiate between a high beam and low beam, all on one bulb

> [@What car should you be driving?](https://forums.speedlife.net/t/what-car-should-you-be-driving/2781/14):
>
> 1. Could it be because she got it installed from a friend who dosen’t know jack ?(The Adjustment is so fuked up, you can read the street signs on top where the traffic lights are from 100 meters as they glow like Gods comming)

Probably or probably not. No one knows without knowing first hand the experience of the individual.

> [@What car should you be driving?](https://forums.speedlife.net/t/what-car-should-you-be-driving/2781/14):
>
> 1. She bought a ish kit !?

Of course. Any HID KIT is a shit kit. Never buy an HID KIT

> [@What car should you be driving?](https://forums.speedlife.net/t/what-car-should-you-be-driving/2781/14):
>
> 1. They removed the high beam function?

This is probably the case

PS. The lifespan of the HID bulb is severely reduced each time it is flickered on and off.

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