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Should be simple to answer.

Discussion in 'General Electronics Discussion' started by Mustwin351, Nov 4, 2013.

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  1. Mustwin351

    Mustwin351

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    Apr 10, 2013
    I have your typical photo sensor rated at 120v.

    Is 120v the max rated voltage? Or is it possible to operate it on 12v ac.


    The reason I ask is I would like to put it on the secondary side of my transformer (12v side) so as to be able to move the photo sensor to a brighter area instead of remounting my whole setup.

    Thanks.
     
  2. KrisBlueNZ

    KrisBlueNZ Sadly passed away in 2015

    8,393
    1,267
    Nov 28, 2011
    It's very hard to answer this question because so much important information is missing.

    The term "photo sensor" has many meanings, depending on context, but your question doesn't have much context. What is the part number or model number of the "photo sensor"?

    If this "photo sensor" is a device that is powered from the 110/120V AC mains supply, then no, it will not operate from 12V AC instead.
     
  3. Mustwin351

    Mustwin351

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    Apr 10, 2013
    Yeah it's your typical photo sensor for a light. Thanks Kris.
     
  4. davenn

    davenn Moderator

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    Sep 5, 2009
    still not overly helpful

    show a photoof the component/unit inside and out

    Dave
     
  5. Mustwin351

    Mustwin351

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    Apr 10, 2013
  6. duke37

    duke37

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    Jan 9, 2011
    The instructions clearly state that the correct voltage is listed on the label. It is very doubtful if the unit will operate on a significantly lower voltage.
    There is a mechanical switch (relay?) inside which will need power to operate.
     
  7. Mustwin351

    Mustwin351

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    Apr 10, 2013
    Ok thank you guys. I figured as much just wanted to make sure.
     
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