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  2. Time switch - Wikipedia

    en.wikipedia.org/wiki/Time_switch

    A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.

  3. Lux Products - Wikipedia

    en.wikipedia.org/wiki/Lux_Products

    By 1959 a Lux Time Ltd. facility was built in Ontario, Canada. In June 1961, the Robertshaw-Fulton Controls Company, a leading manufacturer of thermostats and controls, bought out the Lux Clock Manufacturing Company. [1] Robertshaw also produced clocks and timers under the Robertshaw Controls Company, Lux Time Division name. Robertshaw sold its ...

  4. Light switch - Wikipedia

    en.wikipedia.org/wiki/Light_switch

    In electrical wiring, a light switch is a switch most commonly used to operate electric lights, permanently connected equipment, or electrical outlets. Portable lamps such as table lamps may have a light switch mounted on the socket, base, or in-line with the cord.

  5. Standby power - Wikipedia

    en.wikipedia.org/wiki/Standby_power

    Timers, powered thermostats, and the like are other examples. An uninterruptible power supply could be considered to waste standby power only when the computer it protects is off. Properly disconnecting standby power is, at worst, inconvenient; powering down completely, for example, an answering machine not handling a call, renders it useless.

  6. Lighting control system - Wikipedia

    en.wikipedia.org/wiki/Lighting_control_system

    It also has a timer that signals the electronic control unit after a set period of inactivity. The control unit uses this signal to activate the switch/relay to turn equipment on or off. For lighting applications, there are three main sensor types: passive infrared , ultrasonic , [ 8 ] and hybrid.

  7. Building automation - Wikipedia

    en.wikipedia.org/wiki/Building_automation

    Building automation (BAS), also known as building management system (BMS) or building energy management system (BEMS), is the automatic centralized control of a building's HVAC (heating, ventilation and air conditioning), electrical, lighting, shading, access control, security systems, and other interrelated systems. Some objectives of building ...