IR LED | Infrared LED | Infrared Sensor
IR LED | Infrared LED | Infrared Sensor:
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An IR LED is a type of diode or simple semiconductor. Electric current is allowed to flow in only one direction in diodes. As the current flows, electrons fall from one part of the diode into holes on another part. In order to fall into these holes, the electrons must shed energy in the form of photons, which produce light.