Assertion: lamp's output | /r/CapableOf | remain constant
Facets:
value: throughout their life
type: TEMPORAL
value: almost
type: DEGREE
value: over time
type: TEMPORAL
Source sentences:
text: The light output remains almost constant throughout their life.
text: The halogen cycle keeps the bulb clean and causes the light output to remain almost constant throughout the bulb's life.
text: Light output remains constant over time, only decreasing towards the end of the rated lifetime (at least 35,000 hours or 12 annums based on use of 8 hours per day).