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2. 2007 Boston Mooninite panic - Wikipedia

   en.wikipedia.org/wiki/2007_Boston_Mooninite_panic

   The LED lights were arranged to represent the Mooninite characters Ignignokt and Err displaying the middle finger. [11] [12] Massachusetts Attorney General Martha Coakley said that the device "had a very sinister appearance. It had a battery behind it, and wires". [13] Others compared the displays to the Lite-Brite electric toy. [13]

3. Flameless candle - Wikipedia

   en.wikipedia.org/wiki/Flameless_candle

   Flameless candles display flickering light, imitating that of actual flames. As a decorative element, the design of a flameless candle is relatively versatile. The body or "housing" of the device is commonly cylindrical, containing a battery pack and an often flame-shaped LED lamp atop the candle. Many manufactures use LED lights with an ...

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. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   The efficiency of LED lighting fixtures is not affected by shape and size, unlike fluorescent light bulbs or tubes. ... (usually battery-powered) in contact with a ...

6. Electric light - Wikipedia

   en.wikipedia.org/wiki/Electric_light

   Most modern electric lighting is powered by centrally generated electric power, but lighting may also be powered by mobile or standby electric generators or battery systems. Battery-powered light is often reserved for when and where stationary lights fail, often in the form of flashlights or electric lanterns, as well as in vehicles.

7. Flashlight - Wikipedia

   en.wikipedia.org/wiki/Flashlight

   Miniature LED flashlight on a key chain, powered by lithium primary coin batteries. Light output from LED flashlights varies even more widely than for incandescent lights. "Keychain" type lamps operating on button batteries, or lights using a single 5 mm LED, may only produce a few lumens. Even a small LED flashlight operating on an AA cell ...