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Converting a Headlight into a Lamp

Discussion in 'Electronic Basics' started by Dan O'Connor, Aug 5, 2004.

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  1. Dan O'Connor

    Dan O'Connor Guest

    Hi, I'm converting an HID Nissan Altima headlight into a light that you can
    plug into a wall outlet, but I'm having trouble finding the ballast I'll
    need to do this, any help? Thanks.
  2. Get a 12 volt DC power supply at whatever the current the lamp draws. If
    it'll work on AC get a 12 volt transformer. When I was a kid I used a toy
    RR transformer to power the unburnt half of a 6 volt auto headlight and used
    it as a search light.
  3. I don't think it's easy to get a 120V ballast for those.

    I think your best shot is to use a computer power supply to supply 12
    volts. No guarantee that it will work - the ballast may draw some
    large amount of current in the first several seconds of warmup, maybe 10
    amps or more.

    Keep in mind that a computer power supply may not work unless the 5-volt
    output has some load - maybe an 1156 backup light bulb.

    If you want a lower cost metal halide light, then I would suggest
    hacking a 70 watt metal halide security light. Lowes or Home Depot may
    have those.

    Keep in mind that metal halide lamps (bulbs) must be enclosed unless
    they are known to be rated for use in open fixtures. Metal halide lamp
    arc tubes do occaisionally explode.

    - Don Klipstein (, )
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