Light-emitting diode - Wikipedia
LEDs have many advantages over incandescent light sources, including lower power consumption, a longer lifetime, improved physical robustness, smaller sizes, and faster switching.
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
3 days ago · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.
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
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 …
LED - Light Emitting Diode: Basics, Types and Characteristics
Sep 20, 2024 · An LED or a Light Emitting Diode is semiconductor device that emits light due to Electroluminescence effect. An LED is basically a PN Junction Diode, which emits light when …
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 …
What Is an LED? - How-To Geek
Believe it or not, LEDs were first invented in 1927 by Oleg Losev in Russia, but a practical commercial LED wasn't developed until the 1960s. That's when James R. Biard and Gary …
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, …
Introduction to LEDs - Lighting Design Lab
LEDs offer benefits such as small size, long lamp life, low heat output, energy savings and durability. They also allow extraordinary design flexibility in color changing, dimming and …