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2. Wireless light switch - Wikipedia

   en.wikipedia.org/wiki/Wireless_light_switch

   The radio receiver's memory is programmed by any number of means to respond to certain selected "switches" or (more correctly) remote control transmitters. Using the existing power lines (such as INSTEON or X10): A receiver is plugged into an outlet and a device is then plugged into the receiver. The plug-in receiver is then programmed to the ...

3. The Clapper - Wikipedia

   en.wikipedia.org/wiki/The_Clapper

   The Clapper is a sound-activated electrical switch, [1] sold since 1984 by San Francisco, California based Joseph Enterprises, Inc. Joseph Pedott marketed the clapper with the slogan "Clap On! Clap Off! The Clapper!". [2] The Clapper plugs into a U.S.-type electrical outlet, and allows control of up to two devices plugged into the Clapper. [3]

4. Light switch - Wikipedia

   en.wikipedia.org/wiki/Light_switch

   Two light switches in one box. The switch on the right is a dimmer switch. The switch box is covered by a decorative plate. The first light switch employing "quick-break technology" was invented by John Henry Holmes in 1884 in the Shieldfield district of Newcastle upon Tyne. [1]

5. Circuit breaker - Wikipedia

   en.wikipedia.org/wiki/Circuit_breaker

   The arc is quenched when it is stretched a very small amount (less than 3 mm (0.1 in)). Vacuum circuit breakers are frequently used in modern medium-voltage switch gear to 38 000 volts . Air circuit breakers may use compressed air to blow out the arc, or alternatively, the contacts are rapidly swung into a small sealed chamber, the escaping of ...

6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

   firefox-startpage.aol.com

   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

7. Multiway switching - Wikipedia

   en.wikipedia.org/wiki/Multiway_switching

   In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location.A common application is in lighting, where it allows the control of lamps from multiple locations, for example in a hallway, stairwell, or large room.