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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

   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 a sporadic twinkling or flickering effect to simulate the calming glow of an actual flame.

4. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   High-power LEDs (HP-LEDs) or high-output LEDs (HO-LEDs) can be driven at currents from hundreds of mA to more than an ampere, compared with the tens of mA for other LEDs. Some can emit over a thousand lumens. [50] [51] LED power densities up to 300 W/cm 2 have been achieved. Since overheating is destructive, the HP-LEDs must be mounted on a ...

5. LED circuit - Wikipedia

   en.wikipedia.org/wiki/LED_circuit

   Simple LED (Light Emitting Diode) circuit diagram. In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED.

6. Electronic signage - Wikipedia

   en.wikipedia.org/wiki/Electronic_signage

   Electronic signs may be used indoors or outdoors. The display technologies are varied and changing quickly. Because of new display technologies, electronic signs are able to present more clear, colorful, and vivid images. Animated electronic signs gradually replace traditional static signs and increasingly take signage market share.

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   Get breaking news and the latest headlines on business, entertainment, politics, world news, tech, sports, videos and much more from AOL