Do I need relays for LED headlights?

Discussion in 'Sparky's corner' started by Houndogforever, Aug 25, 2023.

  1. Houndogforever

    Houndogforever Silver Level contributor

    I have a brand new front lighting harness for my 67 skylark.
    I was going to add a pair of relays to help reduce current flow thru the headlight switch.

    However, I have purchased LED head lights, which don't need nearly the current incandescent lights do. So since I'm running LED, do I really need to cut open this perfect new wire harness and hook in relays?
     
  2. 12lives

    12lives Control the controllable, let the rest go

    No - the LEDs draw less power then the OEM. I run mine in the 67 with the original 56 year old harness! Unless you bought the ones with the cooling fan :eek:
     
    Last edited: Aug 25, 2023
    bostoncat68 likes this.
  3. Houndogforever

    Houndogforever Silver Level contributor

  4. 69WILD

    69WILD Ron

    It looks like it’s 50watts. That seems close to the original t3 headlights.
     
    Max Damage likes this.
  5. 69WILD

    69WILD Ron

    I believe I used these without a relay. States they are only 30watt.


    Auxbeam H1 Led Bulb Fanless, Z6 Series H1 LED Bulbs with EMC Anti-Interference, 300% Brightness 6500K Cool White, Replace for Halogen Bulb (Pack of 2) https://a.co/d/2Mfq6OV
     
  6. 12lives

    12lives Control the controllable, let the rest go

    Its just me but I would go with fanless. I used Auxbeam but a different model. I would double check the clearance behind the headlight bucket to see if there is room.
     
    bostoncat68 likes this.
  7. Max Damage

    Max Damage I'm working on it!

    These lamps you guys are linking to don't seem to cross with our old original low beams? Am I missing something or are you also using a housing to accommodate them?
     
  8. bostoncat68

    bostoncat68 Platinum Level Contributor

    Correct @Max Damage you buy something like a hella glass housing that was originally for Halogen and swap these in. I used a set of fanless Auxbeams but the ones @Houndogforever should be fine too. I did NOT install a relay, as the power draw was actually less than the old T3s.
     
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  9. 69WILD

    69WILD Ron

    LARRY70GS and I used this housing.

    GS Power OEM style 5-inch Round Glass Lens Housing H4 HID for Cars, Truck and Van, LED Halogen High Low Beam Headlight Lamp Conversion Vehicle Light Assembly (Chrome) https://a.co/d/6FPki0z

    I really like them.
     
    Max Damage likes this.
  10. 12lives

    12lives Control the controllable, let the rest go

    Good info here: https://www.v8buick.com/index.php?threads/71-gs-350-headlight-upgrade-leds.366324/

    Some of the lens housings you buy are slightly off center, like 2-5 degrees.. You can bend the tabs or modify the buckets. Some of them are also thinner than stock so you have to shim them in the retaining rings. Really simple and the lights are much better that the old lights.

    One other issue is cost. Some conversion sets are really expensive and other, more DIY, are not.
     
    Last edited: Aug 26, 2023

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