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, …
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.
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: How LEDs Work, How to Use LEDs
Jun 12, 2025 · LED lights refer to energy-efficient lighting devices used in homes, vehicles, streetlights, signage, and electronic displays. They consume less power and last significantly …
Learn About LED Lighting - ENERGY STAR
When designed well, LED lighting is more efficient, versatile, and lasts longer. LEDs are “directional” light sources, which means they emit light in a specific direction, unlike …
What is LED Lighting: Definition, Working Principle and …
Jun 3, 2025 · What is LED Lighting? LED lighting refers to the use of a light emitting diode as a source of illumination. Unlike traditional incandescent bulbs or fluorescent lamps, an LED is a …
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 Are LED Lights? Working, Types, Benefits & Applications
What Are LED Lights? LED lights are semiconductor devices that convert electrical energy directly into light through electroluminescence. Unlike traditional bulbs that produce light by heating …
What is LED ( Light Emitting Diodes ) | LED Lighting Supply
Dec 3, 2019 · LED dates back to the early 1900s when a British physicist discovered silicon carbide crystals could produce light when electric currents were touched. In 1962, GE scientist …
What Is LED and How Does It Work? - vipled.com
Jul 27, 2025 · What Does LED Stand For? LED stands for Light Emitting Diode. It is a semiconductor device that emits light when electricity flows through it. Unlike traditional bulbs …