Assertion: led's efficiency | /r/CapableOf | drop by half
Facets:
value: as the current increases
type: TEMPORAL
value: almost
type: DEGREE
value: steadily
type: MANNER
Source sentences:
text: Indeed, the quantum efficiency of the LEDs peaks at relatively low currents—a few tens of amperes per square centimeter—and then steadily drops, by almost half, as the current increases.