Led Definition & Meaning - Merriam-Webster
WEBLead is both a noun and a verb, as most people know. There are several unrelated nouns spelled lead: one most commonly refers to a metal (as in, "The paint was made with …
Light-emitting diode - Wikipedia
WEBA light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons.
What is LED? - Definition, Working, Properties, Uses, Advantages
WEBA light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. Based on the semiconductor material used and the amount of doping, an LED will emit a coloured light at a particular …
How Light Emitting Diodes Work | HowStuffWorks
WEBLight emitting diodes, commonly called LEDs, are real unsung heroes in the electronics world. They do many different jobs in all kinds of devices. They form numbers on digital clocks, transmit information from remote controls, light up watches and tell you when your appliances are turned on.
What Is an LED? - How-To Geek
WEBAug 11, 2022 · LED stands for "Light-Emitting Diode." The word "diode" is a key component here, because a diode is a semiconductor that only allows electricity to flow in one direction. To make an LED, manufacturers take two materials and place them in …
Learn About LED Lighting - ENERGY STAR
WEBLED stands for light emitting diode. LED lighting products produce light up to 90% more efficiently than incandescent light bulbs. How do they work? An electrical current passes through a microchip, which illuminates the tiny light sources we …
LED | Definition, Light, & Facts | Britannica
WEBSep 13, 2024 · LED, in electronics, a semiconductor device that emits infrared or visible light when charged with an electric current. LED displays began to be used for consumer electronic devices starting in 1968, when Hewlett-Packard (HP) introduced the …
Light Emitting Diode (LED): What is it & How Does it Work?
WEBFeb 24, 2012 · LED Definition: A Light Emitting Diode (LED) is a semiconductor device that emits light when electric current flows through it. Working Principle of LED: The working principle of LED involves applying a forward bias current, which causes electrons and holes to recombine at the junction, producing light.
Light-Emitting Diodes (LEDs) - SparkFun Learn
WEBLEDs (that's "ell-ee-dees") are a particular type of diode that convert electrical energy into light. In fact, LED stands for "Light Emitting Diode." (It does what it says on the tin!) And this is reflected in the similarity between the diode and LED schematic symbols: In short, LEDs are like tiny lightbulbs.
LED Lighting - Department of Energy
WEBLED is a highly energy-efficient lighting technology, and has the potential to fundamentally change the future of lighting in the United States. Residential LEDs -- especially ENERGY STAR rated products -- use at least 75% less energy, and last up to 25 times longer, than incandescent lighting.
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