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Thread: Headlight upgrade for 90s 4wd

  1. #1
    Almost literate. veitnamcam's Avatar
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    Headlight upgrade for 90s 4wd

    I have a Lj78 landcruiser Prado.
    After Driving modern vehicles for the last few years and going back to this era my gosh the lights are shit!
    Lightbar you say...well I probably will but that won't help low beam.
    I want to upgrade/replace the original headlights and most importantly still get warrents.
    The lights appear to be the same as same era Hilux and Surf but I haven't actually checked that yet.
    What's everyone else done?
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  2. #2
    A shortish tall guy ROKTOY's Avatar
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    In the same wagon, I fit new Headlights every few years so I know the reflective coating is in decent condition.
    Water ingress stuffs the coating.
    Run Narva 130/100 bulbs.
    LED headlights would be great but getting ones that are up to code at a realistic cost is prohibitive.
    I'd love to hear other options too.
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  3. #3
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    Get a relay system for the H4s, most probable bulbs, and then fit a really good set of the most applicable +something H4 globes research suggests..
    Assuming lenses and reflectors ok.
    That's about all you can do for low beam

  4. #4
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    Fog lamps increase the flood of lighting down and to the sides, plus are legal for wof to run with low beam just must be powered up off the headlight circuit (i.e. can't be turned on without at least low beam powered up). High beam is easier as you say, as you can run a pair of LED spot/flood combo units and good to go.

    The existing setup is limited in what you can achieve - the standard reflectors in the headlamp units are about it really and as good as their time. Upgrading the bulbs will get you a 'whiter' or 'bluer' light which penetrates further but won't fix the pattern of the reflectors in the headlamps. A bulb upgrade to the Narva or similar upgrade bulbs that fit into the standard housing will give you that whiter light and a bit more range, then fit driving LED's for high beam (you don't actually need to spend a fortune on huge units to get an effective upgrade in high beam light) and fit the fog lamps which you can use on back country dark as the inside of a cow areas with either high or low beams for the light fill to get better spread and pattern on dip...
    Last edited by No.3; 22-06-2024 at 12:17 AM.
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  5. #5
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    its not hid lights is it fuk me the ones on wife's car are fukn useless tried new bulbs etc
    may be sarcastic may be a bad joke

  6. #6
    The Original Striker
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    https://forum.ih8mud.com/threads/lj7...rsion.1335715/

    What year is your lj78?
    My quick google fu mainly is coming up with front grille replacement to the older 87-90 round headlight version(parts ex japan) and run a nz compliant 7'' round headlight unit
    https://www.hella.co.nz/en/products/...am-insert.html
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    Something often overlooked is voltage drop to the headlights - if youve got access to a multi meter see if you can measure the voltage across the bulb itself. Did a Narva training session about 25 years ago when i worked in auto electrical, and they said the difference between 13.8v (charging voltage) down to 12.5v reduced light output 30% - 40%. Putting thirstier bulbs in just made the voltage drop worse, and often they throw the light wrong as well with the filament in the wrong place. As someone else said above a couple of relays wired in can make a decent improvement just solving this issue with 80s/90s jap cars and their super thin wires.
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  8. #8
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    Quote Originally Posted by striker View Post
    https://forum.ih8mud.com/threads/lj7...rsion.1335715/

    What year is your lj78?
    My quick google fu mainly is coming up with front grille replacement to the older 87-90 round headlight version(parts ex japan) and run a nz compliant 7'' round headlight unit
    https://www.hella.co.nz/en/products/...am-insert.html
    Those round inserts with Halogen bulbs do a good job - natural reflector shape without needing a computer.

  9. #9
    The Original Striker
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  10. #10
    Gone................. mikee's Avatar
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  11. #11
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    Quote Originally Posted by svt40 View Post
    Something often overlooked is voltage drop to the headlights - if youve got access to a multi meter see if you can measure the voltage across the bulb itself. Did a Narva training session about 25 years ago when i worked in auto electrical, and they said the difference between 13.8v (charging voltage) down to 12.5v reduced light output 30% - 40%. Putting thirstier bulbs in just made the voltage drop worse, and often they throw the light wrong as well with the filament in the wrong place. As someone else said above a couple of relays wired in can make a decent improvement just solving this issue with 80s/90s jap cars and their super thin wires.
    My quad has this issue. But it's a quad, and one led flood on the front on high beam circuit cures a lot of ills... Nice not having to worry about wof sometimes haha

  12. #12
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    Some newer bulbs would see you right 6500k temp bulbs will throw out some more light however round housings are way better putting that light to use over square housings.

    If you did want to upgrade to some LED lights as long as they are DOT rated and have the rating etched on to the housing you should be fine for WOFs. However LED retrofit bulbs are iffy and probably wont get a WOF.

  13. #13
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by striker View Post
    https://forum.ih8mud.com/threads/lj7...rsion.1335715/

    What year is your lj78?
    My quick google fu mainly is coming up with front grille replacement to the older 87-90 round headlight version(parts ex japan) and run a nz compliant 7'' round headlight unit
    https://www.hella.co.nz/en/products/...am-insert.html
    It's a 91 with the rectangular headlights but maybe I can find a round headlight grill and headlight mounts.
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  14. #14
    The Original Striker
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    Quote Originally Posted by veitnamcam View Post
    It's a 91 with the rectangular headlights but maybe I can find a round headlight grill and headlight mounts.
    Might pay to give a Toyota parts guy a call, check the compatibility of the same year 79 series ute, for grille and light mounts, its a Toyota, no doubt there will be compatibility in the LC components
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  15. #15
    The Original Striker
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