Light-emitting diode - Wikipedia
A light-emitting diode (LED) is an electronic component that uses a semiconductor to emit light when current flows through it. Electrons in the semiconductor recombine with electron holes, thereby …
LED | Definition, Light, & Facts | Britannica
Jan 2, 2026 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.
Learn About LED Lighting - ENERGY STAR
LED stands for light emitting diode. LED lighting products produce light up to 90% more efficiently than incandescent light bulbs. How do they work? An electrical current passes through a microchip, which …
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, which releases …
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 type of …
LED Lighting - Department of Energy
The light-emitting diode (LED) is today's most energy-efficient and rapidly developing lighting technology. Quality LED light bulbs last longer, are more durable, and offer comparable or better …
What Is LED and How Does It Work? - vipled.com
Jul 27, 2025 · LED stands for Light Emitting Diode. It is a semiconductor device that emits light when electricity flows through it. Unlike traditional bulbs that use heat to create light, LEDs emit light …
What Are LED Lights? Working, Types, Benefits & Applications
Learn what LED lights are, how they work, their types, benefits, and applications. Learn about energy savings, lifespan, color quality, and why LEDs are better than incandescent, fluorescent, and …
What is an LED? Complete Guide to LED Technology
Dec 3, 2019 · LEDs are classified as low-power, mid-power, or high-power devices. Multiple LEDs must be combined to achieve the desired light output levels. This compact size enables flexible LED …
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