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: 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.
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 …
What is LED? - Construction, Working, Characteristics
LED (Light Emitting Diode) is an optoelectronic device which works on the principle of electro-luminance. Electro-luminance is the property of the material to convert electrical energy into …
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, …
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
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 make an LED, …
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 …