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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, thereby …

  2. All About LEDs - SparkFun Electronics

    LEDs, or Light Emitting Diodes, are the single most common way to add light to your project. If you want something to glow, blink, flash, or otherwise add some light to your life, an LED is what you need! …

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

    Mar 12, 2021 · We will start by taking a look at what LEDs actually are, the different types of LEDs, and the uses of LEDs. Finally, we will answer some of the most frequently asked questions about them. A …

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

    Jan 2, 2026 · 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 …

  5. Light Emitting Diode: How LEDs Work, How to Use LEDs

    Jun 12, 2025 · Learn what a light emitting diode is, how LEDs work, and how to use them in electronics projects. Includes history, applications, tips, and FAQs.

  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 microchip, which …

  7. LEDSupply - For All Your LED Project Needs!

    Buy from LEDSupply - Free Shipping & the lowest prices on LEDs, Drivers, Optics and many more LED supplies. In stock. Click or Call (802) 728 6031.

  8. How Light Emitting Diodes (LEDs) 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 …

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

    Compared with conventional light sources that first convert electrical energy into heat, and then into light, LEDs (Light Emitting Diodes) convert electrical energy directly into light, delivering efficient light …

  10. US LED, Ltd. | LED Manufacturer | 500 Morris Oliver Way, Katy, TX

    With decades of lighting expertise, US LED proudly offers a wide range of indoor and outdoor LED lighting solutions tailored specifically for commercial and industrial applications. Discover which ultra …