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2. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   This was a dial mounted either on the body of the fan or in a gang box at the wall, and when turned in either direction, continuously varied the speed at which the blades rotated—similar to a dimmer switch for a light fixture. A few fans substituted a rotary click-type switch for the infinite-speed dial, providing a set number of set speeds ...

3. C-Bus (protocol) - Wikipedia

   en.wikipedia.org/wiki/C-Bus_(protocol)

   This Dimmer (or Relay) has a 120/230 V Line interconnection directly to the ceiling light and a neutral connection back from the ceiling light to the Dimmer. The Dimmer will control the light directly and will receive its commands from another device on the C-Bus network (for example, a wall-mounted light switch/keypad). This wall-mounted light ...

4. X10 (industry standard) - Wikipedia

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

   Devices usually plug into the wall where a lamp, television, or other household appliance plugs in; however some built-in controllers are also available for wall switches and ceiling fixtures. The relatively high-frequency carrier wave carrying the signal cannot pass through a power transformer or across the phases of a multiphase system .

5. Lighting control system - Wikipedia

   en.wikipedia.org/wiki/Lighting_control_system

   The major advantage of a lighting control system over stand-alone lighting controls or conventional manual switching is the ability to control individual lights or groups of lights from a single user interface device. This ability to control multiple light sources from a user device allows complex lighting scenes to be created.

6. The best air purifiers of 2025 - AOL

   www.aol.com/lifestyle/best-air-purifiers...

   The Cool Gen1 is built in the same style as the Dyson’s tower fans. In fact, when you turn up the power, it works as a cooling fan, complete with multiple oscillation settings. That alone is a ...

7. Lighting control console - Wikipedia

   en.wikipedia.org/wiki/Lighting_control_console

   A lighting control console (also called a lightboard, lighting board, or lighting desk) is an electronic device used in theatrical lighting design to control multiple stage lights at once. They are used throughout the entertainment industry and are normally placed at the front of house (FOH) position or in a control booth .