LED Definition & Meaning - Merriam-Webster
The meaning of LED is past tense and past participle of lead. When to Use Lead or Led
LED | Definition, Light, & Facts | Britannica
Oct 13, 2025 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.
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Light Emitting Diode (LED): What is it & How Does it Work?
Feb 24, 2012 · 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 semiconductor. This diode can …
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 Is an LED? - How-To Geek
Aug 11, 2022 · You can't go anywhere these days without hearing about LEDs, whether in TV sets, light bulbs, smartphones, or otherwise. But what are they, and how are they different …
LED (Light-emitting diode) explained - Soldered Electronics
LED diodes: The positive side of an LED is called the anode, and it is typically denoted by a longer lead or a "+" symbol on the LED body.
How Light Emitting Diodes Work | HowStuffWorks
Light emitting diodes form numbers on digital clocks, send data from remote controls and illuminate watches - the simple genius of the design makes it infinitely applicable. And now, …
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What is LED? 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 …