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Thread: Alarm warning light

  1. #1
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    Alarm warning light

    Guys - have acquired a nifty warning light to keep the baddies away from my motor -

    How can i wire a +12V and a ground so it only comes on when ignition is off

    nick

  2. #2
    Maximum Bitrate Skipjacks's Avatar
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    Quote Originally Posted by OriginalNick2
    Guys - have acquired a nifty warning light to keep the baddies away from my motor -

    How can i wire a +12V and a ground so it only comes on when ignition is off

    nick
    Get a normally closed relay comming off a switched power line.

    It'll keep the ciruit open (thus no light) when the care is on and it'll close the circuit when teh car is off (thus light on) Just make sure it's a nice power efficient LED and not a spinning strobe light that's going to eat your battery.

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