Are modern DRL's becoming an issue?

Discussion in 'Fred's House of Pancakes' started by AVTrainz, Apr 22, 2025.

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  1. mikefocke

    mikefocke Prius v Three 2012, Avalon 2011

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    Recent Toyotas can have a headlight setting where they sense from outside light sensing when the headlights need to be on and turn them on.
    Some have auto leveling headlights that allow for auto adjusting for the weight in your trunk pointing the lights high.

    Some have auto dimming. when they sense the light s from a car ahead...even tail lights.

    Some even have headlights that turn on LEDS that shine in the direction you are turning to better illuminate the edge to the inside edge of a turn.

    Assisted by optional fog lights positioned low.
     
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  2. bisco

    bisco cookie crumbler

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    and none of them are perfect. and the icons on the switch and dash don't help unless you look in the manual
     
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  3. cyberpriusII

    cyberpriusII Prodigyplace says I'm Super Kris

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    Whoo-eee:

    Popped into the FHOP forum without logging in...flooded by the load of...well you know...thanks again to Bob for his squelch advice.

    My DRL question...do the DRL use the same "bulb" as the regular headlights...meaning more frequent light replacement?

    kris
     
  4. Trollbait

    Trollbait It's a D&D thing

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    Depends. Many cars now have a separate LED(the eye brow) for DRLs. Those that do use the head light only have it turned on at 50% or so, which means less wear on the bulb. I can't say in my experience if it leads to more frequent bulb changing
     
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  5. ChapmanF

    ChapmanF Senior Member

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    The relationship between incandescent bulbs' lifetimes and the power they are run at is incredibly steep. I've read it's something like a thirteenth-power relationship, which would put the life of a headlight at 50% power DRL duty at around eight thousand times its full-power lifetime. So you probably won't be replacing it noticeably more often. :)
     
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  6. cyberpriusII

    cyberpriusII Prodigyplace says I'm Super Kris

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    Good. At the moment economizing is the name of the game around my house. Trying to get the dogs to eat miners lettuce. A lot of it growing around here. They are not too pleased.
    Miners Lettuce; An Historic American Salad Green - Forager | Chef
     
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