Light-emitting diode - Wikipedia
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, releasing energy in the form …
Light Emitting Diode (LED): What is it & How Does it Work?
Feb 24, 2012 · 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 type of semiconductor. This diode can …
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, …
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.
Light Emitting Diode Basics | LED Types, Colors and Applications
Sep 16, 2024 · Light Emitting Diode Basics, construction, characteristics, radiation pattern, efficacy, LED Series Resistance Calculation, advantages, etc.
LED Definition & Meaning - Merriam-Webster
The meaning of LED is past tense and past participle of lead. When to Use Lead or Led
Learn About LED Lighting - ENERGY STAR
LED lighting differs from incandescent and fluorescent in several ways. When designed well, LED lighting is more efficient, versatile, and lasts longer. LEDs are “directional” light sources, which …
Light Emitting Diode: How LEDs Work and How to Use Them
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.
What is LED? - BYJU'S
What is LED? 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 …
What Is an LED? - How-To Geek
Aug 11, 2022 · A Diode That Emits Light LED stands for "Light-Emitting Diode." The word "diode" is a key component here, because a diode is a semiconductor that only allows electricity to …