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Member Since: July 18, 2011

Country: United States

  • For many switches, you can also check the underside for a horizontal line. The pair of legs on 1 side of the line are permanently connected to one another, while the pair on the other side are permanently connected to each another.

    Or you can perform a test with a multimeter or a simple LED circuit. :) Or you can briefly short a low voltage battery, if you like a little danger on a chilly day.