Light-emitting diode - Wikipedia
A 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.
LED | Definition, Light, & Facts | Britannica
Nov 7, 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 first LED display.
How Light Emitting Diodes Work | HowStuffWorks
Light 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 …
What Is an LED? - How-To Geek
Aug 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 close proximity.
LED Basics - Department of Energy
LED lighting is already the most energy-efficient lighting technology, with efficacies ranging up to 150 lumens per watt or more in some specialized instances. But there still remains considerable room for efficacy improvement and widespread deployment of more efficacious products.
LED's Explained - The Engineering Mindset
May 17, 2023 · In this article, we'll explain LED technology in an easy to understand way. We'll cover the different types of LED lights, the different colors that LEDs can emit, and the different applications for LED technology and how they work.
Introduction to LEDs - Lighting Design Lab
Light Emitting Diode (LED) is a relatively old technology, circa 1970, that has advanced from numeric displays and indicator lights to a range of new applications, including exit signs, accent lights, task lights, traffic lights, automobile lighting, signage, wall …
LED Lighting - Department of Energy
LED 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 …
Light-emitting diode (LED) | How it works, Application & Advantages
Oct 26, 2023 · LEDs are small, solid-state devices that emit light when an electric current flows through them. They offer numerous advantages over traditional incandescent and compact fluorescent light bulbs, including energy efficiency, longevity, and environmental friendliness.
The Evolution of LED Technology: Benefits and Applications
Mar 20, 2024 · Discover the evolution of LED technology, its benefits, and diverse applications across industries. Explore energy efficiency, durability, and versatility.
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