How Do LEDs Work?

The light-emitting diode (LED) keeps making inroads into everyday electronics. From displays to bulbs to headlamps and other lamps in newer vehicles, this device is producing brighter, more attractive light for many applications. You might wonder how LEDs work.

A video on the YouTube channel VirtualBrain explains how LEDs work. The video uses an electrical circuit with a diode to explain the action of current passing through to allow light passage and thus the LED lighting. As an LED is semiconductor-based, the video further explains how electron movement and the transfer of energy produce light emission. Finally, it explains how RGB (red-green-blue) diodes work to generate light in various color combinations.

You can view the video here.