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  1. Light-emitting diode - Wikipedia

    In electrical engineering, 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, …

  2. Learn About LED Lighting - ENERGY STAR

    LED 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 …

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

    2026年1月2日 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.

  4. 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, …

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

    2012年2月24日 · 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 …

  6. Illuminate Your Space - LED Lighting Solutions | Diode LED

    Diode LED is the wholesale and manufacturing division of Elemental LED and is a premier wholesale supplier of LED lighting, providing a wide variety of linear, task, and accent lighting …

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

    2024年9月20日 · As mentioned in the introduction, an LED is a semiconductor light source. It consists of a PN Junction Diode and when voltage is applied to the LED, electrons and holes …

  8. Light Emitting Diode (LED): Principle, Advantages, and Uses

    2025年6月10日 · A light-emitting diode (LED) is a small electronic device that emits light when an electric current flows through it. LED works by passing electricity through a semiconductor, …

  9. What Is LED and How Does It Work? - vipled.com

    2025年7月27日 · What Does LED Stand For? LED stands for Light Emitting Diode. It is a semiconductor device that emits light when electricity flows through it. Unlike traditional bulbs …

  10. Light Emitting Diode <What are LEDs and How Do They Work?>

    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 developed in 1993 based on …