How to Measure Current Draw

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    • 1). Set the multimeter to read amperage. The range selected should include at least 10 amps.

    • 2). Connect the red lead from the multimeter to the positive terminal on the battery. Connect the black lead from the multimeter to the metal side of the light bulb.

    • 3). Connect the electrical wire from the bottom of the light bulb to the negative terminal on the battery. Turn the multimeter on and read the amps.

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