The light switch is just inside the door.

NEWYORKER: Amundsen

At the top of the stairs, he tried the dead light switch again, then closed the iron door behind him and walked out into the empty street.

NEWYORKER: Waiting

The roof is connected by an elongated bicycle chain to a garage-door motor that rolls it back at the flick of a switch.

FORBES: A Star Is Born

The switchman examined the switch again, checking that the express had done no damage, then went into his cabin, pulled the door to, and played a few notes on his signal horn.

NEWYORKER: Among Animals and Plants