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2. Wireless light switch - Wikipedia

   en.wikipedia.org/wiki/Wireless_light_switch

   Dimmer light switch with RF-based remote control [1] 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]

3. Lightning switch - Wikipedia

   en.wikipedia.org/wiki/Lightning_Switch

   The Lightning Switch transmitter requires no outside source of electricity.Each time the transmitter button is pressed, the transmitter converts the mechanical energy supplied by the user's finger into electricity to power a radio transmission to a receiver/relay through the use of a piezoelectric generator (brand name: Lightning) originally invented by the National Aeronautics and Space ...

4. Insteon - Wikipedia

   en.wikipedia.org/wiki/Insteon

   Insteon is an integrated dual-mesh (formerly referred to as "dual-band") network that combines wireless radio frequency (RF) and a building's existing electrical wiring, [7] in which all devices are peers and each device independently transmits, receives, and repeats messages. [8] [9]

5. X10 (industry standard) - Wikipedia

   en.wikipedia.org/wiki/X10_(industry_standard)

   To allow for wireless keypads, remote switches, motion sensors, et cetera, an RF protocol is also defined. X10 wireless devices send data packets that are nearly identical to the NEC IR protocol used by many IR remotes, and a radio receiver then provides a bridge which translates these radio packets to ordinary X10 power line control packets.

6. Light switch - Wikipedia

   en.wikipedia.org/wiki/Light_switch

   A wireless light switch provides remote control of lighting using a hand-held transmitter. While the controlling device may be a unit dedicated to this purpose, increasingly such switches may be controlled by the technology (such as Bluetooth or Wi-Fi) now found in smartphones.

7. Switch - Wikipedia

   en.wikipedia.org/wiki/Switch

   A wireless light switch allows remote control of lamps for convenience; some lamps include a touch switch which electronically controls the lamp if touched anywhere. In public buildings several types of vandal resistant switches are used to prevent unauthorized use.