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Led turn signal/running light

Discussion in 'Lighting' started by HawkShot99, Jul 14, 2020.

  1. Jul 14, 2020 at 9:41 PM
    #1
    HawkShot99

    HawkShot99 [OP] Well-Known Member

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    Kingston, NY
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    I drive with my DRL's on 100% of the time during g the day. I seem to kill the incandescent bulb every 4 months or so.

    I looked into buying some LED's to hopefully get more time out of them, but then remembered when I had put LED turn signals on a motorcycle and had crazy hyper flash.

    Is this still a issue, or have the manufacturers come out with led bulbs that mimic a normal bulb?

    How does one add a resistor if that's what's needed? I've done plenty of car electric work but never needed to install a resistor.
     
  2. Jul 16, 2020 at 9:53 AM
    #2
    HawkShot99

    HawkShot99 [OP] Well-Known Member

    Joined:
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  3. Jul 16, 2020 at 10:44 PM
    #3
    crashnburn80

    crashnburn80 Vehicle Design Engineer

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    Something is wrong if your DRLs only last 4 months. I drive with mine on all the time and am at 5.5 years and counting. The bulbs should last significantly longer than you are indicating. What bulbs are you buying as replacements? Do you have severe premature failure of other bulbs on your truck?

    If switching to LED you can add resisters or change out the flasher module to one calibrated for LED. Resisters are inherently failure prone, so if set on an LED swap I’d look at the LED flasher module swap instead. I’m not saying these are good, and have not run them myself, but as an example:
    https://www.diodedynamics.com/front-turn-signal-leds-for-2005-2015-toyota-tacoma-pair.html

    LEDs often do not perform as well/the same as the incandescents they replace in an incandescent housing, so your results switching to LED may vary, especially in a DRL application run in the daytime. I’d try to find out why you are burning through bulbs so quickly because that shouldn’t be happening on your truck.
     
    Tullie D likes this.
  4. Jul 16, 2020 at 10:55 PM
    #4
    HawkShot99

    HawkShot99 [OP] Well-Known Member

    Joined:
    Oct 20, 2015
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    2,211
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    Kingston, NY
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    13' Silver DCLB TRD Sport - Sold
    I run whatever the local autozone/advanced has in the right size. Usually it seems to be sylvania. I dont have other bulbs burning out quickly.
    I just put a new set of sylvania 4157na in amber, in on Tuesday. I'll see how long these last.
     

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