Three Way Wall Switch

Understanding Three
Understanding Three. Three-way wall switches are most commonly used to control a light fixture from two locations, such as from both ends of a hallway or stairway.
Ws4777 Wall Switch Module 3
WS4777 Wall Switch Module 3. What is the WS4777 Wall Switch? The WS4777 is a prepacked 3-way operable switch. The package comes with both a master switch and a secondary switch that fit within your homes existing toggle style switch plate covers. This switch is simple to install and

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