Assertion: led | /r/CapableOf | emit low-intensity infrared light
Facets:
Source sentences:
text: Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light.
text: Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light.
text: LEDs appeared as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light.