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 …
Amazon.com: Led Lights
Amazon.com: led lights Shop products from small business brands sold in Amazon’s store. Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering …
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 …
LED | Definition, Light, & Facts | Britannica
2026年1月2日 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.
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 light …
LED - Light Emitting Diode: Basics, Types and Characteristics
2024年9月20日 · As mentioned in the introduction, an LED is a semiconductor light source. It consists of a PN Junction Diode and when voltage is applied to the LED, electrons and holes recombine in the …
What is an LED? Complete Guide to LED Technology
2019年12月3日 · 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 …
What is an LED? | All About LEDs | Adafruit Learning System
2013年2月11日 · In fact, the first two letters of LED stand for Light Emitting. A really nice thing about LEDs is that they are very simple. Unlike some chips that have dozens of pins with names and …
Light Emitting Diode (LED): Principle, Advantages, and Uses
2025年6月10日 · 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 …
Light Emitting Diode (LED): What is it & How Does it Work?
2012年2月24日 · 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 …