Assertion: led | /r/CapableOf | select specific wavelengths
Facets:
value: rapidly
type: MANNER
Source sentences:
text: Compared to laser light, the wider bandwidth featured by LEDs is more useful for exciting a variety of fluorescent probes, and compared to the excessive heat and continuous spectrum emitted by arc lamps, LEDs are cooler, smaller, and provide a far more convenient mechanism to cycle the source on and off, as well as to rapidly select specific wavelengths.