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That is not at all a straightforward question, as the answer could be any amperage between 0 and infinity depending on the voltage of the application at hand...... Amps, watts, and volts have the following relationship; and this is how you should calculate your answer assuming that you can determine the voltage at hand: The power(in Watts) equals the amperage(in Amps) multiplied by the voltage(in Volts) Perhaps you can figure it out based on the fact that a normal American household power supply generally runs at 120 volts, and most automotive applications receive 12 volts DC. Keep in mind however that any device run from these power sources may be converting the line voltage to a different value using one of a number of means.

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16y ago

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