Assertion: white led | /r/HasProperty | efficient
Facets:
value: low cost
type: OTHER
Source sentences:
text: The white LED was reported to be efficient (5 lm/W), low cost, and have a predicted lifespan of 50 000 hours.
text: The white LED was reported to be efficient (5 lm/W), low cost, and have a predicted lifespan of 50 000 hours.