Assertion: lamp's light | /r/HasProperty | required
Facets:
Source sentences:
text: Most modern lamps (such as fueled lanterns) have been replaced by gas-based or petroleum-based fuels to operate when emergency non-electric light is required.
text: Also the lights adjust depending on road conditions, for example, snow produces more reflectance therefore reduced light is required.
text: For applications where non-directional light is required, either a diffuser is used, or multiple individual LED emitters are used to emit in different directions.