Led bulbs

Discussion in 'Mech Tech' started by jonno69, Nov 6, 2021.

  1. Hi all
    I attempted to fit led bulbs for the indicators but they flash very very quickly so I changed the flasher relay unit to a led comparable type and they wouldn’t work at all,also had issues with the stop and tail bulbs where they fit but won’t work.As anybody else had the same issues?
     
  2. I’ve called International rescue!

    Help should be along soon


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  3. Sproggy4830

    Sproggy4830 Supporter

    Led lighting seems to be a dark art . I watch Dr zzs. On youtube , more decorative string lights but everyone seems to struggle, theres always a resistor to add or a sacrificial LED that seems to sort things out.
     
  4. mikedjames

    mikedjames Supporter

    Tail lights.. clean the connections, make sure the spring contacts in the bulb holders are shiny. Because they draw less current you dont get the arc that cleans the connections...
    Flashers- if you bought from classiccarleds.co.uk, then check the wiring... If you bought from eBay then buy a flasher relay from classiccarleds...
     
    redgaz likes this.
  5. I’ve found with leds if they’re in the wrong way round they won’t come on at all,very polarity sensitive.not like standard bulbs which work either way


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  6. Youngdub

    Youngdub Supporter

    I recommend classic car leds (the supplier). The tail, reverse, etc eg 21w replacement bulbs are all non polarity sensitive and seem very high quality. I have also fitted warm white led headlight bulbs too - fabulous :)
     
    redgaz likes this.
  7. Same here, except I kept the H4 headlights, just warm white sidelights. The brake/tail lights look much better than the originals.

    TBH, I'd give up on the indicators - too much bloody faff. How often do you change an indicator bulb?
     
  8. I still have H4 headlights,just can’t see much at night


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    Merlin Cat and docjohn like this.
  9. Mine work fine.
     
    Crispy likes this.
  10. Mine come on but just don’t light up a lot of road


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  11. Youngdub

    Youngdub Supporter

    I initially replaced the sidelights too as low current DRLs but went the full hog....
    Also agree on the indicators as hardly on.... I do also drive a BMW.... :)
     
    Crispy and snotty like this.
  12. I believe Audi don’t even bother fitting them these days…
     
    The Drama Man and art b like this.
  13. Youngdub

    Youngdub Supporter

    To be fair they are an optional extra....useful if parking illegally.....
     
    snotty likes this.
  14. I fitted LED rear indicator bulbs and stop and tail, agree about the contacts for the stop and tail gave up on the indicators as @snotty says too much faff so fitted them in the reverse lights.
     
  15. mikedjames

    mikedjames Supporter

    I would try the LED ones... you dont know how bad stock H4s are by comparison.
    After all I found I could almost see to drive on LED sidelights alone..

    If you use classiccarleds indicators and their relay, the system works... and they are much brighter improving visibility to others... just like the tail lights everything is twice as bright..
     
  16. Do the LED headlight bulbs fit straight in, or any modifications required?

    Early late bay
     
  17. Straight in if you buy the right ones..
     
    paulcalf likes this.
  18. Youngdub

    Youngdub Supporter

    Mine were a tight fit due to the heat sink at the rear of the bulb. One did - just but on the other I dremel'd a fin off the heatsink to make room for the double insulated power lead. It appeared that my headlamp units were different brands. The bulbs from classiccarleds are H4 so you have to buy the adapter for them too to fit the lamp (in my case with my cross over 71/2).
    Well worth it though
     
    paulcalf likes this.
  19. Does any one have the CLASSIC CAR LED part numbers to hand for the:
    Headlights & adaptors
    Indicator relay
    Or ange Indicator bulbs

    Cheers
     
  20. Youngdub

    Youngdub Supporter

    Website is very good and you will find the indicators okay. (I don't have those)

    The headlamps are:

    Pair of Warm White LED Headlights H4 Hi/Lo Beam Conversion 9-32V Excellent Beam Pattern
    £61.25 Part Number: H4ZES1WWx2

    Here are the bulb adapters, reverse lights, sidelights and stop/tail.

    [​IMG]
    P45T R2 H5 HB12 410 to P43T H4 BULB ADAPTER × 2
    £6.14


    [​IMG]
    12V BA15S WARM WHITE 21W LED 4014 SMD BULB CLASSIC VEHICLE P21W GLB382 × 2
    Negative Earth
    £14.00

    [​IMG]
    BA9S WARM WHITE LED SIDELIGHT GAUGE BULB GLB233 989 × 2
    Negative Earth
    £4.64


    [​IMG]
    BAY15D RED STOP / TAIL LED 4014 30 SMD BRAKE REAR LIGHT GLB380 P21/5W CLASSIC CAR NEGATIVE OR POSITIVE EARTH × 2
    Negative Earth

    £14.00
     
    rob.e and Merlin Cat like this.

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