The unit described provides the driver with both audible and visual warnings of inadequate ambient light level. The threshold is adjustable over a fairly wide range and the alarm action is quite positive. The unit automatically resets when the light level returns to a safe level. The device uses readily available low cost components and can be easily and quickly fitted to any vehicle.


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    Title :

    Twilight warning (for car lights)


    Additional title:

    Zwielicht-Warnsystem fuer Kfz-Beleuchtung


    Contributors:
    Tooley, M. (author) / Whitfield, D. (author)

    Published in:

    Practical Electronics ; 19 , 2 ; 40-41


    Publication date :

    1983


    Size :

    2 Seiten


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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