Assertion: led's efficiency | /r/HasProperty | high
Facets:
Source sentences:
text: The LED have a high efficiency, but they require moderate power for operation.
text: This was due to two reasons: First, the 700nm wavelength emission is in a spectral region where the sensitivity level of the human eye is very low (Figure 2) and therefore, it does not "appear" to be very bright even though the efficiency is high (the human eye is most responsive to yellow-green light).
text: With the increasing use of LEDs as a result of their high efficiency and many other advantages, the history of the LED did not finish.