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2. PSA: You Need to Change the Direction of Your Ceiling Fan for ...

   www.aol.com/lifestyle/psa-change-direction...

   If your ceiling fan is remote control-operated, there should be a button that allows you to change the direction of the fan. Oftentimes, it looks like a reverse symbol, or a circle with revolving ...

3. Which Way Should A Ceiling Fan Turn In The Winter ... - AOL

   www.aol.com/lifestyle/way-ceiling-fan-turn...

   Discover the correct direction for your ceiling fan in winter to enhance warmth and save on heating costs.

4. Pull switch - Wikipedia

   en.wikipedia.org/wiki/Pull_switch

   The most common use of a pull switch is to operate a ceiling electric light. The ceiling fan and mechanical wall fans are also appliances often operated by pull switches. Pull switches may be either two-position (open or closed) or multi-position (allowing for different fan speeds or levels of illumination). Mounted inside a pull switch, there ...

5. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   Ceiling fans have multiple functions. Fans increase mixing in a ventilated space, which leads to more homogenous environmental conditions. Moving air is generally preferred over stagnant air, especially in warm or neutral environments, so fans are useful in increasing occupant satisfaction. [4]

6. Spectrum Brands - Wikipedia

   en.wikipedia.org/wiki/Spectrum_Brands

   Spectrum management was expected to run the merged entity. [4] The combined company is to be named Spectrum Brands Holdings, Inc. and trade under the ticker symbol SPB. The company will remain in Middleton. [16] In September 2021, Spectrum sold its Hardware and Home Improvement ("HHI") division to Assa Abloy for $4.3 billion. HHI has a varied ...

7. Photoelectric sensor - Wikipedia

   en.wikipedia.org/wiki/Photoelectric_sensor

   Conceptual through-beam system to detect unauthorized access to a secure door. If the beam is interrupted, the detector triggers an alarm. A photoelectric sensor is a device used to determine the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver.

8. Optical transistor - Wikipedia

   en.wikipedia.org/wiki/Optical_transistor

   An optical transistor, also known as an optical switch or a light valve, is a device that switches or amplifies optical signals.Light occurring on an optical transistor's input changes the intensity of light emitted from the transistor's output while output power is supplied by an additional optical source.

9. Wavelength-division multiplexing - Wikipedia

   en.wikipedia.org/wiki/Wavelength-division...

   In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e., colors) of laser light. [1]