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Bright flashing light for fake alarm box?

Discussion in 'Electronic Basics' started by [email protected], Dec 7, 2004.

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  1. Guest

    Hi

    I bought a fake/empty alarm box for my house, but thought I'd make it
    look more realistic by putting some kind of periodic flashing bulb in
    the unit.

    I made up an astable on stripboard with uneven RC sides, so the thing
    flashes very briefly every 1-2 seconds. This works fine, but I used an
    LED, which isn't bright enough to be seen through the blue transparent
    panel of the alarm box, from any distance at all.

    The cct is driven by a 9v battery. Can anybody suggest something I can
    use for a bright periodic flash?

    Cheers,
    Mark
     
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