Assertion: flashlight's led | /r/CapableOf | provide maximum battery life
Facets:
value: due to their energy efficiency
type: CAUSE
Source sentences:
text: LEDs provide maximum battery life due to their energy efficiency, and 2000s technology has greatly increased the light output of LEDs.
text: LEDs provide maximum battery life due to their energy efficiency, and 2000s technology has greatly increased the light output of LEDs.