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  1. 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.

  2. Light-emitting diode - Wikipedia

    A light-emitting diode (LED) [5] is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in …

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

    Oct 13, 2025 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.

  4. 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 …

  5. 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 …

  6. 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 …

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

    Jun 10, 2025 · 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, …

  8. What is LED Lighting: Definition, Working Principle and Components

    Jun 3, 2025 · LED lighting refers to the use of a light emitting diode as a source of illumination. Unlike traditional incandescent bulbs or fluorescent lamps, an LED is a semiconductor device …

  9. What is LED ( Light Emitting Diodes ) | LED Lighting Supply

    Dec 3, 2019 · LED Lighting Supply experts explain how LEDs work & their advantages over traditional bulbs. Learn about P-N junction technology, band gaps, wavelengths & why LEDs …

  10. All About LEDs - SparkFun Electronics

    All About LEDsSize and Shape How big do you want your LEDs to be? Are you using them in a breadboard, soldering them by hand, or designing a PCB? Individual through-hole LEDs are …