LEDs are transducers of electricity into light. They operate in reverse of photodiodes, which convert light into electricity. Electroluminescence from a solid state diode was discovered in 1906 by Henry Joseph Round of Marconi Labs, and was published in February 1907 in Electrical World.

The correct past and past participle of lead is spelled led. If you aren’t sure whether to use led or lead as the verb in your sentence, try reading it aloud to yourself.

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Jul 9, 2025 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.

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 illuminates the tiny light sources we call LEDs and the result is visible light.

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 semiconductor. This diode can emit light when it is in the forward biased state.

LED is a short form of Light Emitting Diode. It is a type of diode that emits light when a current pass through it. In other words, LED is a special type of diode that converts electrical energy into light energy. It is a simple PN junction diode that radiates light in forward bias.

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 quality than other types of lighting.

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 energy in the form of light.

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 longer than incandescent or fluorescent alternatives.