# leds

CEFR B2 · Noun

Source: https://englishreference.com/word/leds
Updated: 2026-05-08

## Definition

small electronic lights that are very bright and use very little power. You see them on computer screens, car lights, and home decorations.

For teachers: semiconductor light sources that emit light when current flows through them. Usually plural in common usage; the acronym stands for Light Emitting Diodes.

## Examples

- The new LEDs make the kitchen look much brighter.
- Many cities are replacing old street lamps with LEDs to save money on electricity and maintenance.
- Modern architectural lighting often relies on programmable LEDs to create dynamic color displays that can be adjusted instantly via a central computer system.

## Usage notes

- Almost always used in the plural form when referring to a set of lights or a display technology.

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