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2. Time switch - Wikipedia

   en.wikipedia.org/wiki/Time_switch

   The switch may be connected to an electric circuit operating from mains power, including via a relay or contactor; or low voltage, including battery-operated equipment in vehicles. It may be built into power circuits (as with a central heating or water heater timer), plugged into a wall outlet with equipment plugged into the timer instead of ...

3. Wireless light switch - Wikipedia

   en.wikipedia.org/wiki/Wireless_light_switch

   Wireless light switches eliminate the wire from the light to the switch location. This is useful in remodelling situations where new wiring can be a hassle. Rather than tearing down a wall to gain access to the wires, a wireless switch can be used. This avoids any need to access wires and makes remodelling fast and simple.

4. Easton Town Center - Wikipedia

   en.wikipedia.org/wiki/Easton_Town_Center

   Easton Town Center is a shopping center and mall in northeast Columbus, Ohio, United States.Opened in 1999, the core buildings and streets that comprise Easton are intended to look like a self-contained town, reminiscent of American towns and cities in the early-to-mid 20th century.

5. Light fixture - Wikipedia

   en.wikipedia.org/wiki/Light_fixture

   Movable lamps have a plug and cord that plugs into a wall socket. Light fixtures may also have other features, such as reflectors for directing the light, an aperture (with or without a lens), an outer shell or housing for lamp alignment and protection, an electrical ballast or power supply, and a shade to diffuse the light or direct it towards ...

6. AC adapter - Wikipedia

   en.wikipedia.org/wiki/AC_adapter

   A battery eliminator is an adapter intended to allow a device intended for battery operation, such as a radio, to be operated from an AC outlet. [10] All radios, except crystal sets, used inconvenient and messy vacuum tube batteries until the mid- to late-1920s. Battery eliminators that plugged into light sockets became very popular. [11]

7. Public address system - Wikipedia

   en.wikipedia.org/wiki/Public_address_system

   Portable PA systems that could be plugged into wall sockets appeared in the early 1930s, when the introduction of electrolytic capacitors and rectifier tubes enabled economical built-in power supplies that could plug into wall outlets. Previously, amplifiers required heavy multiple battery packs. [15]