About Hz/Transformer

Discussion in 'The Projects Forum' started by Lightfire, Mar 20, 2011.

  1. Lightfire

    Thread Starter Well-Known Member

    Oct 5, 2010
    690
    21
    Hello,

    I has a peanut bulb (it was stocked on my cabinet very very long time ago). I am thinking to use it but when I saw something in the instuction.

    It says that it needed transformer? Why?

    Also, it said the life that it will lasts is 60 Hz? Oh? I mean 2000 hours then 60 Hz?

    :) Thanks
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    What are the ratings of this "peanut bulb"?
    How may volts, amperes, watts are given?

    Bertus
     
  3. Lightfire

    Thread Starter Well-Known Member

    Oct 5, 2010
    690
    21
    Hi bertus,

    volts-12
    amperes-i dont know
    watts-20
     
  4. tracecom

    AAC Fanatic!

    Apr 16, 2010
    3,869
    1,393
    watts = volts times amperes

    so, how many amperes? :)

    But the answer to one of your questions is that because it is a 12 volt bulb, you must not connect it to 120 volts. And to get 12volts from 120 volts, you must use a transformer.
     
  5. Lightfire

    Thread Starter Well-Known Member

    Oct 5, 2010
    690
    21
    But if I will put it directly to a 12 volt DC battery, it will light or not?

    Thank you.
     
  6. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    Yep.......
     
    Lightfire likes this.
  7. Lightfire

    Thread Starter Well-Known Member

    Oct 5, 2010
    690
    21
    thanks all. :)

    topic should be close now. :D
     
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