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Thread: Headlight bulbs

  1. #1
    Salvo's Avatar

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    Headlight bulbs

    Can anyone recommend the brightest bulbs for our cars?

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    The best thing you can do is to rewire the power supply to the bulbs.

    The standard wiring takes all the power for the headlights through all the tiny wiring via the switch on the steering column!

    Get yourself a moderately sized length of wire, a fuse holder and fuse, and a relay. You will want to run a permanent feed directly from the battery, through the fuse, to the relay. The relay coils themselves will be powered from the current headlight wiring. The output from the relay will go to the bulb. Also replace the ground wire with a bigger one.

    Do this, and you'll get full battery voltage to the lights, and not the reduced voltage from running through all the old, small wiring, and a much better output, even with standard bulbs.

  3. #3
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    Thanks Gary very informative as usual. I'll give that a go thanks

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    I use a different headlight set up, but I have this installed, it comes with relays and fuse etc.
    Factory headlight plug is used to trigger relay and the headlight sockets on the harness is direct feed from battery on heavier gauge wire.
    With standard set up you will need one harness for low beam and one harness for high beam (one harness does a pair of lights, so one harness for low beam pair and one harness for high beam pair)

    https://www.ebay.co.uk/itm/H4-Headli...t/192284936495
    Updating Soon!! 1998 Legnum VR4, fully serviced every 4500 miles. Fully Amsoil'd. Falken 453's, EVO 8 FQ320 rear diff.

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    Quote Originally Posted by Confused View Post
    The best thing you can do is to rewire the power supply to the bulbs.

    The standard wiring takes all the power for the headlights through all the tiny wiring via the switch on the steering column!

    Get yourself a moderately sized length of wire, a fuse holder and fuse, and a relay. You will want to run a permanent feed directly from the battery, through the fuse, to the relay. The relay coils themselves will be powered from the current headlight wiring. The output from the relay will go to the bulb. Also replace the ground wire with a bigger one.

    Do this, and you'll get full battery voltage to the lights, and not the reduced voltage from running through all the old, small wiring, and a much better output, even with standard bulbs.
    Thanks Gary something else to add to my to do list

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    I have uprated the bulbs on mine, but cant't remember what they are apart from the are meant to be 100/130% brighter.
    Will try and find out what they are

  7. #7
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    Quote Originally Posted by Louis View Post
    I use a different headlight set up, but I have this installed, it comes with relays and fuse etc.
    Factory headlight plug is used to trigger relay and the headlight sockets on the harness is direct feed from battery on heavier gauge wire.
    With standard set up you will need one harness for low beam and one harness for high beam (one harness does a pair of lights, so one harness for low beam pair and one harness for high beam pair)

    https://www.ebay.co.uk/itm/H4-Headli...t/192284936495
    Thanks for that link Louis

    Sent from my SM-A202F using Tapatalk

  8. #8
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    Quote Originally Posted by galantnight View Post
    I have uprated the bulbs on mine, but cant't remember what they are apart from the are meant to be 100/130% brighter.
    Will try and find out what they are
    I was looking at these https://www.amazon.co.uk/dp/B00GD8OL..._.qxlFbQ43TFYP

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  9. #9
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    Quote Originally Posted by Louis View Post
    I use a different headlight set up, but I have this installed, it comes with relays and fuse etc.
    Factory headlight plug is used to trigger relay and the headlight sockets on the harness is direct feed from battery on heavier gauge wire.
    With standard set up you will need one harness for low beam and one harness for high beam (one harness does a pair of lights, so one harness for low beam pair and one harness for high beam pair)


    https://www.ebay.co.uk/itm/H4-Headli...t/192284936495
    Thanks for that got two

  10. #10
    Salvo's Avatar

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    Quote Originally Posted by galantnight View Post
    Thanks for that got two
    Gate crasher

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  11. #11
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    Quote Originally Posted by Salvo View Post
    I was looking at these https://www.amazon.co.uk/dp/B00GD8OL..._.qxlFbQ43TFYP

    Sent from my SM-A202F using Tapatalk
    Nice but not road legal,
    My son installed LED lights and they are really good was going to put them on mine but mine have hardly been used so thought I wait

  12. #12
    Salvo's Avatar

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    Quote Originally Posted by galantnight View Post
    Nice but not road legal,
    My son installed LED lights and they are really good was going to put them on mine but mine have hardly been used so thought I wait
    never read the description

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