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How can Amercan light bulbs be used in Australia?

  1. Aug 26, 2014 #1
    In America power is supplied at 110 V. In Australia power is supplied at 240 V, however American lights are routinely used in Australia. How is this possible?
     
  2. jcsd
  3. Aug 26, 2014 #2

    Averagesupernova

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    Do you know in what way they are used? How do you know they are used?
     
  4. Aug 26, 2014 #3

    berkeman

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    From your other threads which have been deleted, it appears that you don't have much of a background in electricity yet (which is okay). As Averagesupernova says, please provide much more information and some examples so we can asses your question. Thank you.
     
  5. Aug 26, 2014 #4
    Lets say we had two 110V lightbulbs in series on a 240V power supply

    And we have one 110V lightbulb alone on a 240V power supply

    The lightbulbs are each 1000W
     
  6. Aug 26, 2014 #5

    berkeman

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    Let's say you answer the questions you were asked for the sources of your information. I checked and Austrailia is indeed (mostly) 230Vrms at 50Hz. Can you show us examples of how some US 120Vrms light bulbs are being used please?
     
  7. Aug 26, 2014 #6

    jim hardy

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    I can buy 240 volt lamps right here in Arkansas (almost the middle of USA).
     
  8. Aug 26, 2014 #7

    Averagesupernova

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    Seems strange to me. Of course there are ways they can be used. The same way air conditioning can be used at the north pole. Seems odd that it would be, but there is certainly a way even though it seems unlikely there is a reason.
     
  9. Aug 26, 2014 #8

    Baluncore

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    If you are considering filament globes here, a 110V globe on 230V will immediately vaporise and so be destroyed.
    High Efficiency globes that contain a switching converter can be designed to operate on the 90V to 240V range.

    In Australia 10 years ago, globes all used a standard bayonet fitting.
    In the USA the Edison Screw fitting is available everywhere.
    Now the ES fitting is also available in Australia, but the globes are rated at the Australian standard 230V.
     
  10. Aug 26, 2014 #9

    AlephZero

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  11. Aug 26, 2014 #10

    berkeman

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    Thanks Aleph! Thread locked.

    @pstir2 -- please keep this discussion in your schoolwork thread.
     
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