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  2. Smart plug - Wikipedia

    en.wikipedia.org/wiki/Smart_plug

    A smart plug is a power plug and socket (also known as a wall plug, outlet, or electrical connector) which can be fitted between power cords and sockets to function as a remote-controlled power switch. As such, smart plugs can be used to make "dumb" electrical equipment smart, and thereby enable such devices for home automation or building ...

  3. Power strip - Wikipedia

    en.wikipedia.org/wiki/Power_strip

    A North American power strip with two USB power ports that includes a built in surge protector. A power strip (also known as a multi-socket, power board and many other variations [a]) is a block of electrical sockets that attaches to the end of a flexible cable (typically with a mains plug on the other end), allowing multiple electrical devices to be powered from a single electrical socket.

  4. Power distribution unit - Wikipedia

    en.wikipedia.org/wiki/Power_distribution_unit

    A power distribution unit (PDU) is a device fitted with multiple outputs designed to distribute electric power, especially to racks of computers and networking equipment located within a data center. [1] Data centers face challenges in power protection and management solutions. This is why many data centers rely on PDU monitoring to improve ...

  5. Light switch - Wikipedia

    en.wikipedia.org/wiki/Light_switch

    Vintage push-button light switches. The push-button light switch has two buttons: one that closes the contacts and one that opens the contacts. Pushing the raised button opens or closes the contacts and pops out the previously depressed button so the process can be reversed. In the U.S., the buttons were commonly black; the "on" button ...

  6. Wireless light switch - Wikipedia

    en.wikipedia.org/wiki/Wireless_light_switch

    A wireless light switch is a light switch that commands a light or home appliance to turn itself off or on, instead of interrupting the power line going to the light fixture. There are different ways to communicate between the switch and the fixture: [2] Using radio transmission: A radio receiver is typically wired or screwed into a fixture or ...

  7. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure. Wiring is subject to safety standards for design and installation. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric ...

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