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IKEA Dimming lights lower your electric bill because dimming the lights saves energy!

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  • 26-09-2015 12:04am
    #1
    ronan45
    Registered Users Posts: 1,584 ✭✭✭


    So dimming my lights saves energy.... how much? Is this true? ikea says so :confused:

    http://www.ikea.com/us/en/catalog/products/10063148/

    Key features
    - Helps lower your electric bill because dimming the lights saves energy.
    - As the light can be dimmed, you are able to choose lighting suitable for every occasion.


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    #2
    [Deleted User]
    Posts: 5,238 ✭✭✭ [Deleted User]


    Yes. Depends on how much you dim them; roughly linear after power factor and the electronics' self-consumption.


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    #3
    brightspark
    Registered Users Posts: 2,637 ✭✭✭brightspark


    While it's true that dimming a light will save energy, it does so at a loss of efficiency.

    E.g a 60W lamp dimmed to 50% so it only consumes 30W will give out less light than a 30W lamp on full power.

    Most energy efficient lamps such as LED and CFLs either are totally unable to be dimmed or only work with certain dimmers, though there are some dimmable LEDs available now.


    You should only really use dimmers when you need to vary the light levels otherwise it's more efficient to use a lamp that gives the required illumination.


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