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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. LED | Definition, Light, & Facts | Britannica

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

  3. LED Definition & Meaning - Merriam-Webster

    The correct past and past participle of lead is spelled led. If you aren’t sure whether to use led or lead as the verb in your sentence, try reading it aloud to yourself.

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

    20 MFómh 2024 · 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 …

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

    24 Feabh 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 …

  6. 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 …

  7. LED Lighting - Department of Energy

    The light-emitting diode (LED) is today's most energy-efficient and rapidly developing lighting technology. Quality LED light bulbs last longer, are more durable, and offer comparable or …

  8. 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 …

  9. LED (Light-emitting diode) explained - Soldered Electronics

    The first question that might pop into your mind is, what is exactly an LED? A regular diode is a semiconductor device that works as a one-way switch for electrical current. It allows current in …

  10. 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, …