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2. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   One-color light is well suited for traffic lights and signals, exit signs, emergency vehicle lighting, ships' navigation lights, and LED-based Christmas lights Because of their long life, fast switching times, and visibility in broad daylight due to their high output and focus, LEDs have been used in automotive brake lights and turn signals.

3. Light-emitting diode physics - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode_physics

   A LED is a long-lived light source, but certain mechanisms can cause slow loss of efficiency of the device or sudden failure. The wavelength of the light emitted is a function of the band gap of the semiconductor material used; materials such as gallium arsenide , and others , with various trace doping elements , are used to produce different ...

4. LED lamp - Wikipedia

   en.wikipedia.org/wiki/LED_lamp

   A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

5. Water Lantern Festival will bring twinkling, floating lights ...

   www.aol.com/water-lantern-festival-bring...

   Expect to design your own lantern, launch it and enjoy the soft illumination that will light up Riverview Park at the family-friendly event. Ticket purchases include a floating lantern kit, an LED ...

6. Floating ground - Wikipedia

   en.wikipedia.org/wiki/Floating_ground

   Floating grounds can be dangerous if they are caused by failure to properly ground equipment that was designed to require grounding because the chassis can be at a very different potential from that of any nearby organisms, who then get an electric shock upon touching it. Live chassis TVs, also known as hot chassis, where the set's ground is ...

7. Water lantern - Wikipedia

   en.wikipedia.org/wiki/Water_lantern

   Floating lanterns at the Eihei-ji temple, Japan. A water lantern is a type of lamp that floats on the surface of the water. It is also known as a floating lamp, river lamp or lake lamp, depending on the water body on which it is floated. The water lantern originated in India and later spread to other parts of South Asia, Southeast Asia and East ...