LED headlight upgrade (Testarossa) | FerrariChat
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LED headlight upgrade (Testarossa)

Discussion in 'Boxers/TR/M' started by Threeofnine, Jul 17, 2024.

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  1. Threeofnine

    Threeofnine Formula Junior

    Dec 11, 2020
    393
    Birmingham, AL USA
    Full Name:
    Jarrod Heath
    #1 Threeofnine, Jul 17, 2024
    My Testarossa’s headlights are a bit weak for night driving so I want to upgrade to LED. I bought a kit but I ran across another thread that recommended using caution as the electricial system might have problems. Is there anything I need to do before installing them? I was under the impression that LED bulbs draw much less power than halogen bulbs.

    My car does have an upgraded fuse box.
     
  2. kartboy1234

    kartboy1234 Formula Junior

    Nov 10, 2014
    723
    Palos Verdes, CA
    Full Name:
    Michael L
    #2 kartboy1234, Jul 17, 2024
    If you have replacement LED lights then you are fine. They probably added a warning as a just in case but it should be a drop in replacement depending on the type that you bought.
     
    Threeofnine likes this.
  3. Grease Donkey

    Grease Donkey Karting

    Jul 5, 2018
    120
    Zurich, Switzerland
    #3 Grease Donkey, Jul 18, 2024
    AFAIK it can be both ways: they can draw more or less current. It depends on the bulb.

    Especially early LED upgrades have large cooling bodies to manage the heat generated by the additional current.
     
    Threeofnine likes this.
  4. Auraraptor

    Auraraptor F1 World Champ
    Lifetime Rossa Owner

    Sep 25, 2002
    13,958
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    Omar
    #4 Auraraptor, Jul 22, 2024
    Step 1 is make sure your fuse board and connectors are updated/sorted/ok.

    I keep toying w the idea of getting Holley 7in LEDs but want to do more investigation on what the best are before pulling the trigger
     
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  5. 71veedub

    71veedub Formula Junior

    May 31, 2006
    339
    Boston/North Shore
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    Greg
    #5 71veedub, Jul 24, 2024
    Omar let me (us) know when you figure it out!
     
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  6. Tifoso1

    Tifoso1 F1 Rookie

    Nov 18, 2003
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    Pacific NW
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    Anthony C.
    #6 Tifoso1, Jun 12, 2025
  7. JCR

    JCR F1 World Champ
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    Mar 14, 2005
    10,898
    H-Town, Tejas
    #7 JCR, Jun 12, 2025
     
  8. ago car nut

    ago car nut F1 Veteran
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    Aug 29, 2008
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    Madison Ohio
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    David A.
    #8 ago car nut, Jun 13, 2025
    Why so low on H4 wattage? If you go with halogen, bypass the stalk headlight switch with direct relays. This will reduce the current thru the stalk switch, and have more voltage to the headlights.
     
  9. Auraraptor

    Auraraptor F1 World Champ
    Lifetime Rossa Owner

    Sep 25, 2002
    13,958
    MO
    Full Name:
    Omar
    #9 Auraraptor, Jun 18, 2025
    LEDs dont need as much wattage for the same lumens output. That could be why. They are MUCH more sensitive to current fluctuations though so a stable/good grounding/proper wiring is key
     

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