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Thread: What is the difference between 'H' bulbs and 900x

  1. #1
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    What is the difference between 'H' bulbs and 900x

    What is the difference between 'H' bulbs, such as H1, H3, etc, and 900x bulbs, like 9004, 9006, 9007?
    Does every 900x bulb have a comprobable H bulb, just a different base?

    Thanks!

  2. #2
    Senior Member HID FANATIC linuxglobal's Avatar
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    they are all H bulbs = halogen.

    THey just have diff abbreviations.

    9006 = low beam = hb4
    9005 = high beam = hb5

    9004 is something like hb5
    9007 is hb3

    Some others are purely devoted to fog use like h3 and 881, 894, you will rarely see these in lows (oem lows anyways) ebay doesnt count.

    The best filaments to be replaced with hid include 9005 and 9006 whenever used as fog or high beams.... low is debatable in 9006... depends on the car.

    But the H always stands for halogen.
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  3. #3
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    makes sense

    so if you have, say, a civc, with H1 headlight bulbs, can that be replaced with a 9003 HID conversion kit?

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    9005 = hb3
    9007 = hb2

    i know the first one is right (since its on my headlights lol, but im not 100% on the 9007...)

  5. #5
    Senior Member HID FANATIC linuxglobal's Avatar
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    Quote Originally Posted by mikemjohnson
    makes sense

    so if you have, say, a civc, with H1 headlight bulbs, can that be replaced with a 9003 HID conversion kit?
    not sure what 9003 is ... if its h1 then ure fine.
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  6. #6
    Senior Member HID Rookie taco's Avatar
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    9003 is h4.

  7. #7
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    Re: What is the difference between 'H' bulbs and 900x

    Quote Originally Posted by mikemjohnson
    What is the difference between 'H' bulbs, such as H1, H3, etc, and 900x bulbs, like 9004, 9006, 9007?
    Does every 900x bulb have a comprobable H bulb, just a different base?

    Thanks!
    900x bulbs tend to have plastic bases. (which can melt from overwattage bulbs or HID kits)

    9004 is dual transverse filament 45w/65w (low/high)
    9005 is single longitudinal filament 65w (high)
    9006 is single longitudinal filament 55w (low)
    9007 is dual longitudinal filament 55w/65w (low/high)

    H bulbs are a mixed bag

    H3 is an outright weirdo.

  8. #8
    Senior Member HID Learner Azrael's Avatar
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    All headlight/foglight bulbs that are identified by just numbers use a twist-lock base whereas H1, H3, etc bulbs are typically held in place with screws or springs and require specific orientation.

  9. #9
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    Quote Originally Posted by Azrael
    All headlight/foglight bulbs that are identified by just numbers use a twist-lock base whereas H1, H3, etc bulbs are typically held in place with screws or springs and require specific orientation.
    I forgot how the H9, H11, H13 looked. Didn't want to jump to those conclusions.

  10. #10
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    H11 is a twist lock

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