Assertion: lantern's life | /r/HasProperty | long
Facets:
Source sentences:
text: During blackouts in buildings, LEDs are often for back-up lighting in hallways and stairways; LED lanterns are common in emergency kits for office buildings and vehicles because of their long lives and low energy use; and search and rescue teams use LED lanterns, headlamps, and LED flashlights in a variety of emergency settings.