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  1. Light-emitting diode - Wikipedia

    LEDs are transducers of electricity into light. They operate in reverse of photodiodes, which convert light into electricity. Electroluminescence from a solid state diode was discovered in …

  2. Learn About LED Lighting - ENERGY STAR

    The Basics of LED Lighting What are LEDs and how do they work? LED stands for light emitting diode. LED lighting products produce light up to 90% more efficiently than incandescent light …

  3. LED | Definition, Light, & Facts | Britannica

    Aug 25, 2025 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.

  4. Light Emitting Diode (LED): What is it & How Does it Work?

    Feb 24, 2012 · What is a Light Emitting Diode (LED)? A Light Emitting Diode (LED) is a special type of PN junction diode. The light emitting diode is specially doped and made of a special …

  5. How Light Emitting Diodes Work | HowStuffWorks

    Light emitting diodes form numbers on digital clocks, send data from remote controls and illuminate watches - the simple genius of the design makes it infinitely applicable. And now, …

  6. What is LED? - BYJU'S

    A light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. When current passes through an LED, the electrons recombine with holes …

  7. LED - Light Emitting Diode: Basics, Types and Characteristics

    Sep 20, 2024 · In this article, we have seen about basics of LED and few important characteristics of LED. In the next tutorial, we will see How an LED works and the construction of an LED.

  8. Light Emitting Diode <What are LEDs and How Do They Work

    What are LEDs? LEDs are a type of semiconductor called "Light Emitting Diode". White LEDs, which have achieved practical realization through the use of high-brightness blue LEDs …

  9. 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 …

  10. LEDs: What Are They? (Definition, Types, and Uses)

    Jan 1, 2025 · A LED or light-emitting diode is an electrical component that produces light when current passes through it. LEDs are semiconductor devices, light is produced when the …