SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!


Member Since: June 30, 2010

Country: United States

  • Careful- they give power (Watts), not current (Amps). Since P = I*V, and I=V/R, you get the equation P = V2 / R. Solving for R here yields 7.2 Ohms.

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