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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.
DIP switches are still used in some remote controls to prevent interference; for example, to control a ceiling fan (and its light fixture) that was retrofitted to a single-circuit junction box. The DIP switches set a different radio frequency or address for each transmitter / receiver pair, so that multiple units can be installed without ...
Cove light – indirect lighting recessed into the ceiling in a long box against a wall. Troffer – recessed fluorescent light fixtures, usually rectangular in shape to fit into a drop ceiling grid. Chandeliers in the Bibliothèque Mazarine (Paris) Surface-mounted light – the finished housing is exposed, not flush with the surface.
A light fixture or luminaire is a technical and professional term for the electrical fixtures used to hold a lamp—a light bulb—the light source. Wikimedia Commons has media related to Lighting fixtures .
Here Today, Gone Tomorrow. If your vision of the Big Apple still includes bright yellow taxi cabs, flashing lights, and a phone booth on every corner, it's time to recalibrate.
Downlights, often referred to as a "light kit", which add ambient light to a room and can be used to replace any ceiling-mounted lamps that were displaced by the installation of a ceiling fan Decorative lights mounted inside the motor housing—in this type of setup, the motor housing side-band often has glass or acrylic panel sections, which ...
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