Assertion: led | /r/CapableOf | emit visible light
Facets:
Source sentences:
text: An LED is a semiconductor device that emits visible light when an electric current passes through it.
text: A light-emitting diode (LED) is a semiconductor device that emits visible light when an electric current passes through it.
text: In addition to the LEDs that emit visible light, others are manufactured to emit infra-red.
text: A light-emitting diode (LED) is a semiconductor device that emits visible light when an electric current passes through it.