Assertion: flashlight's led | /r/HasProperty | efficient
Facets:
value: highly
type: DEGREE
value: compared with incandescent lamps
type: OTHER
value: at producing colored light
type: OTHER
Source sentences:
text: LEDs are highly efficient at producing colored light compared with incandescent lamps and filters.
text: And because LEDs are so efficient (most of the energy they draw from the battery goes toward producing light, not heating a filament as with incandescents), you also don’t have to sweat replacing the bulb, since most LEDs are intended to last as long as the flashlight itself.
text: The LEDs themselves are energy efficient and a new set of batteries will offer up to 30 hours of continuous use.