
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, …
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 …
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, …
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, …
Light Emitting Diode or the LED Tutorial - Basic Electronics …
The light emitting diode is the most visible type of semiconductor diode. They emit a fairly narrow bandwidth of either visible light at different coloured wavelengths, invisible infra-red light for …
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 (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 …
LED | Definition, Light, & Facts | Britannica
Nov 25, 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 (LED): Definition, types, and more
Aug 16, 2024 · A light emitting diode (LED) is one of the most widely used semiconductor devices. Made from compound semiconductors, LEDs efficiently convert electrical energy into …
LED - Light Emitting Diode: Construction, Types & Applications
LED is a short form of Light Emitting Diode. It is a type of diode that emits light when a current pass through it. In other words, LED is a special type of diode that converts electrical energy …