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    abdullah25's Avatar
    abdullah25 Posts: 9, Reputation: 1
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    #1

    Jan 25, 2008, 11:38 AM
    Lighting : T8 & T12
    What are T8 & T12 mean in lighting?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Jan 25, 2008, 12:15 PM
    All your answers to your research project is here:

    Search Results | Lighting Research Center

    Also search for T8

    Then you can summarize your answers.
    caibuadday's Avatar
    caibuadday Posts: 460, Reputation: 10
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    #3

    Jan 25, 2008, 04:58 PM
    Quote Originally Posted by abdullah25
    what are T8 & T12 mean in lighting??
    T means tubular; T8 means the lamp's diameter is 1 inch(2.54 cm), T12 =1.25 inches
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #4

    Jan 25, 2008, 05:08 PM
    The 8 means 8*1/8" and 12 means 12 * 1/8", hence the diameters of 1" and 1.25"
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