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: How LEDs Work, How to Use LEDs
6 days ago · The LED modules or strips are designed to divide the 12V supply voltage across multiple LEDs. Mains-Powered LED Lighting: LEDs used in AC mains-powered lamps or bulbs …
LED | Definition, Light, & Facts | Britannica
May 23, 2025 · 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 …
Light Emitting Diode (LED): What is it & How Does it Work?
Feb 24, 2012 · LED Definition: A Light Emitting Diode (LED) is a semiconductor device that emits light when electric current flows through it. Working Principle of LED: The working principle of …
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, …
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 …
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 …
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, …
What Is an LED? - How-To Geek
Aug 11, 2022 · 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 flow in one direction. To …
LEDs: What Are They? (Definition, Types, and Uses)
Jan 1, 2025 · A LED or light-emitting diode is an electrical component that produces light when current passes through it. LEDs are semiconductor devices, light is produced when the …