Wiktionary
houselight
n. One of the lights in an auditorium.
Usage examples of "houselight".
In the hinterlands, where the farms were miles apart and the houselights went out early, you could look up on almost any clear night and see all the stars you wanted.
This street paralleled Main, though it was narrower and darker, a quiet residential neighborhood with no houselights showing.
The houselights came up and Hawkins idly observed that the crowd was highly enthused about the hit musical.
I walked to the front door and was actually glad that all the shimmering houselights were turned on bright.
The light was murky grey again, pinpricked by houselights and street lamps.