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    thuybao's Avatar
    thuybao Posts: 1, Reputation: 1
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    #1

    May 19, 2010, 05:35 PM
    How many amp can use in 300 watt
    I have wind generator rate at 300w 12v dc and how many light globe can use
    cdad's Avatar
    cdad Posts: 12,700, Reputation: 1438
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    #2

    May 19, 2010, 06:18 PM

    You can use 5 -60 watt lights but they have to be 12volt.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #3

    May 19, 2010, 10:37 PM

    The formula for Watts (P=VI) based on 12 V is P=12*I(amps).

    You just add the wattages of the lamps. If you happen to know that the lamps are 12 V, 1A then that lamp draws 12 Watts. If you have 10 of these lamps that's 120 watts.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #4

    May 20, 2010, 06:10 PM

    I would have the wind generator charge a battery to have lights/fan when wind is not present.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #5

    May 20, 2010, 06:12 PM

    That is 25 Amps at 12 Volts DC.
    300/12=25 Amps.
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