Why are there two black wires connected to the bottom of my three-way switch? - Home Improvement Stack Exchange
I am installing a new 3 way switch. When I open up the existing three way I see two back wires connected that the bottom, one black in the top and one white at the top. Can someone advise what the
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Why are there two black wires connected to the bottom of my three
Why does this light switch have three black wires? : r/homeautomation