[s-cars] HID Headlight Bulb Source

[Tom Green]

Abe,

The bulb output changes with age.  YMMV.  If yours was a good  
decision, you will know it when you plug it in.  The rest is  
speculation.

The factory tests every bulb in the manufacturing process.

Tom '95 S6
          '95.5 S6 avant
Knoxville, TN

On Jan 10, 2011, at 10:35 PM, yellowcuda at gmail.com wrote:

> Tom
>
> I understand your point, but in this case it is the same brand and  
> model number bulb. Why would the light output and color be so  
> dramatically different? And, if there is that much variability in  
> bulb lots who is to say the pair that you would buy would be a  
> "matched set"? Just my $0.02.
>
> A
> Sent from my interwebs device.
>
> From: Tom Green <trgreen at comcast.net>
> Date: Mon, 10 Jan 2011 22:25:51 -0500
> To: John Cunningham<jc at j2c3.com>
> Cc: John Cody Forbes<cody at 5000tq.com>; Abe  
> Berman<yellowcuda at gmail.com>; s-car list<s-car-list at audifans.com>
> Subject: Re: [s-cars] HID Headlight Bulb Source
>
> With the kits, there are ballast compatibility issues, but that  
> pertains to connectors, not the voltage output of the ballast.  When  
> you
> get to D2S bulbs, that is an industry standard the bulb must meet to  
> carry that designation, and the bulb base and connector is
> standard as well.  You will see differences in light output and  
> color within the standards that are significant enough that you never
> want to replace a single bulb but both.
>
> Despite Abe's decision, I would never advise buying a used bulb.    
> In this case a brand new pair is little more than that one used
> bulb.
>
> Tom '95 S6
>          '95.5 S6 avant
> Knoxville, TN
>
> On Jan 10, 2011, at 9:53 PM, John Cunningham wrote:
>
>> Cody - interesting, the vendors all seem to claim there are ballast  
>> compatibility issues but maybe its simpler than that.
>>
>> Sent from my mobile
>> __________________________
>> John Cunningham
>>
>> US Mobile +1 (617) 750-5025
>> China +86 138-8175-8180
>>
>> On Jan 11, 2011, at 9:46, John Cody Forbes <cody at 5000tq.com> wrote:
>>
>>> They are standardized just like H1 etc. So far every one I've ever  
>>> replaced (a dozen or so, they are pretty reliable) was a D2S.
>>>
>>> -Cody (mobile)
>
>