Updating the Headlights and Dash Gauge / Instrument Panel to LED
OpelGT.com is the premier Opel GT Forum on the internet. Registered Users do not see the above ads.
Thanks Thanks:  0
Likes Likes:  0
Dislikes Dislikes:  0
Page 1 of 2 12 LastLast
Results 1 to 20 of 24
Like Tree38Likes

Thread: Updating the Headlights and Dash Gauge / Instrument Panel to LED

  1. #1
    Opeler
    Join Date
    Sep 2012
    Location
    San Francisco
    Posts
    1
    Downloads
    0
    Uploads
    0

    Updating the Headlights and Dash Gauge / Instrument Panel to LED

    Hello all!

    Super exited to be part of the OPEL community. I finally got my 1973 Opel GT!

    I am looking to update the lights to LED. I rarely drive the car at night, but I did the other night and it was a bit sad how dim the lights were.

    Can anyone recommend the best LED replacement for headlights - links would be great! I am looking to replace the full casing of the headlights.

    A friend sent me this link on eBay:

    https://www.ebay.com/itm/1-PAIR-7-RO...F/263497223390

    And does anyone have any idea the LED replacement bulbs for the instrument cluster / dash lights? I have been all over and cannot find any replacement bulbs!

    Thanks so much!
    tealcarver, GTeglman and dpre like this.

  2. Remove Advertisements
    OpelGT.com
    Advertisements
     

  3. #2
    Just Some Dude in Jersey The Scifi Guy's Avatar
    Join Date
    Nov 2007
    Location
    Cöllingswööd, NJ
    Posts
    13,466
    Real Name
    Gördö
    Downloads
    6
    Uploads
    0
    Hi, welcome to the party!

    soybean, GTeglman and dpre like this.

  4. #3
    OpelGT.com Übermoderator kwilford's Avatar
    Join Date
    Mar 2002
    Location
    Calgary, Alberta, Canada
    Posts
    5,514
    Real Name
    Keith Wilford
    Downloads
    5
    Uploads
    0
    Quote Originally Posted by mjohnsonsf View Post
    I am looking to update the lights to LED.
    And does anyone have any idea the LED replacement bulbs for the instrument cluster / dash lights? I have been all over and cannot find any replacement bulbs!

    Thanks so much!
    Most of the dash bulbs are Ba9S (Single Bayonet 9 mm). There are LOTS of choices on eBay for Ba9S LED's. I have bought probably five types. The best ones so far are these, but LED bulbs are so cheap from China, it is kinda' fun experimenting

    https://www.ebay.com/itm/10x-Super-W...72.m2749.l2649

    And some ARE moderately "dimmable", and the ones shown do dim a bit with the dash rheostat

    And for clarity, that price is $3.38 for TEN (10!) not per bulb

    And for further clarity, many of the LED Ba9S bulbs are a bit too large above the base to fit inside the gauge bulb holders, so have a hard look at what you are buying
    Last edited by kwilford; 1 Week Ago at 10:56 PM.
    soybean, MikeNotigan and dpre like this.
    Keith Wilford
    Finishing up a bare-metal, nut & bolt rotisserie restoration of my '71 Opel GT

  5. Remove Advertisements
    OpelGT.com
    Advertisements
     

  6. #4
    1000 Post Club tealcarver's Avatar
    Join Date
    Dec 2002
    Location
    Fallon, Nevada
    Posts
    1,387
    Real Name
    Bob
    Downloads
    3
    Uploads
    0
    Quote Originally Posted by mjohnsonsf View Post
    Hello all!

    Super exited to be part of the OPEL community. I finally got my 1973 Opel GT!

    I am looking to update the lights to LED. I rarely drive the car at night, but I did the other night and it was a bit sad how dim the lights were.

    Can anyone recommend the best LED replacement for headlights - links would be great! I am looking to replace the full casing of the headlights.

    A friend sent me this link on eBay:

    https://www.ebay.com/itm/1-PAIR-7-RO...F/263497223390

    And does anyone have any idea the LED replacement bulbs for the instrument cluster / dash lights? I have been all over and cannot find any replacement bulbs!

    Thanks so much!
    Amazon has literally hundreds of the bulbs (LED). I guess it depends on the number of lumens you want. I bought some a while back and got them on sale. I got a pair of Symdevanma (7800 lumens) they have more lumen types available, just look on their site. Mine work pretty well, and they save on the amount of watts it takes to power them. Good luck in your search fore the best. I would say the "best" is in the eye of the beholder. I had to get some glass holders for the bulbs (OGTS), they were Halogen, but I needed just the glass part.

    As for the dash lights, I looked for them, but could never find anything that would fit.

    Bob
    soybean and dpre like this.
    71 Chrome Yellow GT

  7. #5
    Mike's Opel Shop Site Supporter opellane's Avatar
    Join Date
    Apr 2004
    Location
    Goshen, NY
    Posts
    1,381
    Real Name
    Mike
    Downloads
    0
    Uploads
    0
    Quote Originally Posted by mjohnsonsf View Post
    Hello all!

    Super exited to be part of the OPEL community. I finally got my 1973 Opel GT!

    I am looking to update the lights to LED. I rarely drive the car at night, but I did the other night and it was a bit sad how dim the lights were.

    Can anyone recommend the best LED replacement for headlights - links would be great! I am looking to replace the full casing of the headlights.

    A friend sent me this link on eBay:

    https://www.ebay.com/itm/1-PAIR-7-RO...F/263497223390

    And does anyone have any idea the LED replacement bulbs for the instrument cluster / dash lights? I have been all over and cannot find any replacement bulbs!

    Thanks so much!


    Welcome to the Group "" mjohnsonsf "" j Please Share some of your 1973 Opel GT Photo's, Uploading is pretty easy
    dash lamps
    https://www.ebay.com/itm/10X-White-B...1/311514322899
    soybean and dpre like this.
    MIKE
    ---------------------------------------------------
    1972 Opel GT, 1969 Opel GT, 1973 MGB,

  8. #6
    OpelGT.com Übermoderator kwilford's Avatar
    Join Date
    Mar 2002
    Location
    Calgary, Alberta, Canada
    Posts
    5,514
    Real Name
    Keith Wilford
    Downloads
    5
    Uploads
    0
    Quote Originally Posted by opellane View Post
    I bought a bag of those. Pretty bright, but they are too large to fit into several of the gauge bulb locations. The base is the correct diameter (9 mm) but the plastic ring above the base is larger, and prevents the bulb from fitting. IIRC, they worked pretty good for the dome lamp
    soybean and dpre like this.
    Keith Wilford
    Finishing up a bare-metal, nut & bolt rotisserie restoration of my '71 Opel GT

  9. #7
    RunOpel dpre's Avatar
    Join Date
    Mar 2019
    Location
    Port Orchard, WA
    Posts
    435
    Real Name
    Dan
    Downloads
    1
    Uploads
    0
    Welcome to Opel Land Smart to upgrade to all LED, really makes a huge difference. And I second the request to see pictures of your Opel
    soybean likes this.

    Keep on Opeling rubber side down and shiny side up
    Make a difference and help someone today
    Dan

  10. #8
    Spaceman GTeglman's Avatar
    Join Date
    May 2015
    Location
    Copenhagen, Denmark
    Posts
    317
    Real Name
    Anders Teglman
    Downloads
    1
    Uploads
    0
    @mjohnsonsf,

    Welcome to the circus If you have a slightly mad side you will enjoy the craziness and camaraderie big time

    And share a picture of your GT!

    Cheers
    soybean and dpre like this.

  11. #9
    Member terrylewisac's Avatar
    Join Date
    Oct 2019
    Location
    Oviedo FL
    Posts
    356
    Real Name
    Terry
    Downloads
    1
    Uploads
    0
    I will second and third all previous posts.
    Welcome aboard and strap your self in it's going to a fun and exciting run
    Try not to take to much in at once or you'll be all over the place( scatter brains) like me.
    soybean likes this.
    If you make it through an entire day and learned nothing you weren't paying attention

  12. #10
    pfj
    pfj is offline
    Member pfj's Avatar
    Join Date
    Dec 2018
    Location
    Maryland
    Posts
    147
    Downloads
    1
    Uploads
    0

  13. #11
    RunOpel dpre's Avatar
    Join Date
    Mar 2019
    Location
    Port Orchard, WA
    Posts
    435
    Real Name
    Dan
    Downloads
    1
    Uploads
    0
    Have you replaced those lights in your dash pfj? And if so, how do you like them. I replaced my headlights with the upgraded Hella H4 from OGTS and love them. What a difference in brightness. I have not replaced my dash lights yet and would like to. Those look to be a good fit.
    soybean likes this.

    Keep on Opeling rubber side down and shiny side up
    Make a difference and help someone today
    Dan

  14. #12
    3000 Post Club Site Supporter P.J. Romano's Avatar
    Join Date
    Aug 2006
    Location
    Goderich, Ontario Canada
    Posts
    3,504
    Real Name
    P.J.
    Downloads
    2
    Uploads
    0
    I am using green coloured LEDs in the gauges. They are bright but easy on eyes (LED bulbs are not dimmable).
    Attached Images Attached Images
    soybean, MikeNotigan, dpre and 1 others like this.
    Old racers never die. They just go bench racing.

  15. #13
    RunOpel dpre's Avatar
    Join Date
    Mar 2019
    Location
    Port Orchard, WA
    Posts
    435
    Real Name
    Dan
    Downloads
    1
    Uploads
    0
    I like those P.J., do you think those bulbs that pfj posted from Amazon would work if I got them in green? Where did you get your bulbs?
    soybean likes this.

    Keep on Opeling rubber side down and shiny side up
    Make a difference and help someone today
    Dan

  16. #14
    3000 Post Club Site Supporter P.J. Romano's Avatar
    Join Date
    Aug 2006
    Location
    Goderich, Ontario Canada
    Posts
    3,504
    Real Name
    P.J.
    Downloads
    2
    Uploads
    0
    I found those gauge bulbs somewhere on Internet. Note, bulb in the clock is smaller than BA9. Not sure about bulb code or availability of LED type (my clock is replaced with oil temperature gauge).

    I also installed LED CREE H4 bulbs in headlights. Rated 16000 Lumens, they are bright!
    Attached Images Attached Images
    soybean and dpre like this.
    Old racers never die. They just go bench racing.

  17. #15
    RunOpel dpre's Avatar
    Join Date
    Mar 2019
    Location
    Port Orchard, WA
    Posts
    435
    Real Name
    Dan
    Downloads
    1
    Uploads
    0
    Wow those headlights P.J. are great. I to replaced my non working stock clock with an oil temp gauge.

    Keep on Opeling rubber side down and shiny side up
    Make a difference and help someone today
    Dan

  18. #16
    Pedal Smasher Autoholic's Avatar
    Join Date
    Jan 2016
    Location
    Albuquerque, NM
    Posts
    1,853
    Real Name
    Joseph (Zeppi) Bauer
    Downloads
    0
    Uploads
    0
    I think it would be a good idea to list all the types of bulbs that are needed, with the quantity needed, and any critical dimensions for that bulb.
    soybean, dpre and terrylewisac like this.
    "Autoholism is an incurable addiction medicated daily with car porn." ~Zeppi

    1973 Opel GT project car - Plans: 2.5L CIH, Weber 38 DGAS, Getrag 240, Lowered 1", Watts link, exterior color - Rainforest Green Pearl, interior color - tan

  19. #17
    2000 Post Club soybean's Avatar
    Join Date
    Nov 2002
    Location
    Reidsville N.C.
    Posts
    2,740
    Real Name
    W Jarrell Young
    Downloads
    2
    Uploads
    0
    Quote Originally Posted by Autoholic View Post
    I think it would be a good idea to list all the types of bulbs that are needed, with the quantity needed, and any critical dimensions for that bulb.
    Yes please do. Especially the headlights. That's on the to do list this Winter. Thank you, Jarrell
    dpre and terrylewisac like this.
    You lose your dreams, you lose your mind. (The Rolling Stones)

  20. #18
    Pedal Smasher Autoholic's Avatar
    Join Date
    Jan 2016
    Location
    Albuquerque, NM
    Posts
    1,853
    Real Name
    Joseph (Zeppi) Bauer
    Downloads
    0
    Uploads
    0
    Well, since it was my idea I'll start the list. Please don't use this information with utmost fidelity until it can be confirmed as perfectly accurate by someone else. Maybe Keith could confirm the info? Since he works all the time with GT's. Anyone else is moire than welcome to provide corrections.

    A public service note about using LEDs in tail lights and indicators: it's best to use a LED that emits the same color as the lens, when the lens is yellow or red. When you use a white LED behind a red lens, only the red spectrum of the light will really pass through the lens. The result of using a white LED behind a red lens is an orange tinted light instead of a nice vibrant red. Even when the white LED has a significantly higher lumen. This has been tested by many people and YouTube is full of videos showing this if you really want to find out which color light to use. Also, it can become necessary to install a LED compliant flasher for your blinkers (indicators) to work correctly. Mechanical flashers operate off of specific current requirements to function as a switch and LEDs often don't require a high enough current flow to cause a mechanical flasher to, essentially, short circuit. Plan on replacing your flasher.

    For use with US Spec GT's:

    -Headlights: H4 bulbs for use with 7" round headlights, 2 are required. For LED 7" conversions, look into motorcycle kits as these are designed to be very compact.

    -Front Side Markers & Indicators: 1156 bulbs are needed as the front side markers and indicators don't need to dim. 6 are required, 4 up front and 2 in the rear.

    -Tail Lights / Brake Lights: 1157 bulbs are needed, 2 are required

    -Reverse Light (before Manta tail lights): 578 Festoon bulb, 1 required.

    -Gauge lights and dome light: Ba9S bulb, ? required. (I need to check this later, I have a complete spare dash)

    -Tiny dash lights: ? need to check.


    For use with Euro-Spec GT's:

    Same info as above, except the front indicator lights are also driving lights.

    -Driving lights: 4095 H1 bulb, 2 are required.
    soybean and dpre like this.
    "Autoholism is an incurable addiction medicated daily with car porn." ~Zeppi

    1973 Opel GT project car - Plans: 2.5L CIH, Weber 38 DGAS, Getrag 240, Lowered 1", Watts link, exterior color - Rainforest Green Pearl, interior color - tan

  21. #19
    2000 Post Club soybean's Avatar
    Join Date
    Nov 2002
    Location
    Reidsville N.C.
    Posts
    2,740
    Real Name
    W Jarrell Young
    Downloads
    2
    Uploads
    0
    Quote Originally Posted by Autoholic View Post
    Well, since it was my idea I'll start the list. Please don't use this information with utmost fidelity until it can be confirmed as perfectly accurate by someone else. Maybe Keith could confirm the info? Since he works all the time with GT's. Anyone else is moire than welcome to provide corrections.

    A public service note about using LEDs in tail lights and indicators: it's best to use a LED that emits the same color as the lens, when the lens is yellow or red. When you use a white LED behind a red lens, only the red spectrum of the light will really pass through the lens. The result of using a white LED behind a red lens is an orange tinted light instead of a nice vibrant red. Even when the white LED has a significantly higher lumen. This has been tested by many people and YouTube is full of videos showing this if you really want to find out which color light to use. Also, it can become necessary to install a LED compliant flasher for your blinkers (indicators) to work correctly. Mechanical flashers operate off of specific current requirements to function as a switch and LEDs often don't require a high enough current flow to cause a mechanical flasher to, essentially, short circuit. Plan on replacing your flasher.

    For use with US Spec GT's:


    -Front Side Markers & Indicators: 1156 bulbs are needed as the front side markers and indicators don't need to dim. 6 are required, 4 up front and 2 in the rear.

    -Tail Lights / Brake Lights: 1157 bulbs are needed, 2 are required
    On my 1972 Gt, I can confirm the above,the turn signals, (front and rear) the bulbs are 1157A or a. Amazon has them in stock. I got mine at O'Reillys. I did not change the flasher however. Jarrell
    dpre likes this.
    You lose your dreams, you lose your mind. (The Rolling Stones)

  22. #20
    Pedal Smasher Autoholic's Avatar
    Join Date
    Jan 2016
    Location
    Albuquerque, NM
    Posts
    1,853
    Real Name
    Joseph (Zeppi) Bauer
    Downloads
    0
    Uploads
    0
    So the turn signals are also 1157?
    "Autoholism is an incurable addiction medicated daily with car porn." ~Zeppi

    1973 Opel GT project car - Plans: 2.5L CIH, Weber 38 DGAS, Getrag 240, Lowered 1", Watts link, exterior color - Rainforest Green Pearl, interior color - tan

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 3 users browsing this thread. (1 members and 2 guests)

  1. soybean

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •