About 11,500,000 results
Open links in new tab
  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. 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.

  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 …

  5. Light Emitting Diode Basics | LED Types, Colors and Applications

    Sep 16, 2024 · Light Emitting Diode or simply LED is one of the most commonly used sources of light now-a-days. Whether it may be your car’s headlights (or daytime running lights) or your …

  6. Light-Emitting Diodes (LED) | Research Starters - EBSCO

    Light-Emitting Diodes (LEDs) are a type of solid-state diode that emit light when electrical current passes through them. They consist of two types of semiconductors—n-type, which conducts …

  7. 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, …

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

    Jun 10, 2025 · LED works by passing electricity through a semiconductor, which releases energy in the form of light. This process makes an LED highly efficient, durable, and versatile, finding …

  9. LED (Light Emitting Diode) | Light Bulb Types | Bulbs.com

    LED light bulbs or lamps utilize light-emitting diodes in order to produce light. LED is a “solid-state” technology, which means that the materials used to generate the light are encased …