Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

13.5V vs 12V bulb ?

Recommended Posts

2002 911 TT (US) Coupe

While doing some other work in my car this past weekend I noticed the bulb that becomes illuminated in the front trunk did not work. Took out the bulb (see first attachment, it's a "12866 Phillips 12V 10W K25673") and figured I would just start out by replacing it -- fair enough.

Went to Auto Zone's website, typed in my vehicle model, and it came up with the Sylvania 6411 (see second attachment). As a side note, oddly on Amazon.com it says this bulb is not compatible with my vehicle. Well I put it in and it works. After coming back upstairs I happened to notice on the packaging it says 13.5V, 10W. But when I looked on the bulb that was in the packaging it says 12V 10W.

Anyone have any insight as to why the bulb itself says it's a 12V but the packaging says 13.5V? Are these somehow equivalent?



Link to comment
Share on other sites

Learn something new every day.........

I just spoke with Sylvania and they told me the industry standard is to test 12V bulbs up to 13.5V (because of fluctuations in auto electrical system, etc). They said this often causes confusion because the information on the packaging and the product itself is inconsistent, but that the bulb is in fact a direct replacement and compatible in the stated vehicle.

I love this car so I adopt Jim Harbaugh's motto.... "stay paranoid" ;)

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.