Assertion: lamp's light | /r/HasProperty | incandescent
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Still, due to their greater efficiency, gas-discharge lamps were preferred over incandescent lights in many lighting applications, until recent improvements in LED lamp technology.
text: These lights are usually incandescent lamps that screw into an ordinary light socket, and they produce heat as well as light.