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. If the verb is pronounced /LED/, use led.

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 …

LEDs are a bright, attractive lighting solution with a long lifespan and energy-saving design. LED bulbs use far less energy than halogen bulbs and last up to 50 times longer than incandescent bulbs. We …

Jan 2, 2026 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.

Aug 5, 2022 · In this article, we’ll lead you through the differences between lead and led, explain why lead is considered an irregular verb, and give examples of how lead and led are used in sentences.

Feb 24, 2012 · Light Emitting Diode (LED): What is it & How Does it Work? LED Definition: A Light Emitting Diode (LED) is a semiconductor device that emits light when electric current flows through it.

LED definition: simple past tense and past participle of lead. See examples of led used in a sentence.