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Technical Information and Questions > Amperage, Wattage and Voltage Calculations You must have at least two of the following three specifications: Amps, Voltage or Watts in order to accomplish any of the following conversions.
Wattage Calculation
Determine Watts by using this formula:
Amps x volts = watts example: 1 Amp x 110 Volts = 110 watts
Amperage Calculation
Determine Amps by using this formula:
Watts ÷ Volts = Amps example: 12 Watts ÷ 12 Volts = 1 Amp
Voltage Calculation
Determine Volts by using this formula:
Watts ÷ Amps = Volts example: 100 Watts ÷ 10 Amps = 10 Volts
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