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LED

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Light-Emitting Diode

A small semiconductor device that emits light when charged with electricity. LEDs come in white as well as many colors.

Bright white LEDs are commonly used for phone camera flashes and LCD display backlights. LEDs are also used for indicator/notification lights and keyboard/keypad backlights.

Some LEDs contain multiple elements and are therefore capable of multiple colors. LEDs with red, green, and blue elements are called RGB LEDs and are capable generating any color in the rainbow.

LEDs come in many sizes. The largest, high-power LEDs are used in light bulbs, commercial light fixtures, and street lights. Smaller LEDs are used in most electronic devices that incorporate any kind of light.

The smallest LEDs are called microLEDs. They are small enough to form a line that looks like a continuous, thread-like filament, or pixels in a display.

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