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3-way switch controls a light from two locations (like stairways or hallways) using a pair of switches, featuring terminals for "traveler" wires between them and a common wire, often with easy-install features like built-in wire strippers, side and push-in connections, and a broad strap to prevent floating, with some models offering illumination when the light is off
3-way switch controls a light from two locations (like stairways or hallways) using a pair of switches, featuring terminals for "traveler" wires between them and a common wire, often with easy-install features like built-in wire strippers, side and push-in connections, and a broad strap to prevent floating, with some models offering illumination when the light is off