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LED – Light Emitting Diode


An LED is an electronic device that emits light when an electrical current is passed through it.

The first LED produced red light, but now many LED colours are available across the visible, ultraviolet and infrared spectrum.

Benefits of LEDs

  • Low power consumption
  • Long lifetime
  • Small size
  • Fast switching


Light Emitting Diode

Initially red in colour but now LEDs can come in a wide array of colours.