The switch, throw it.
4 seconds sound clip from the Forbidden Planet (1956) movie soundboard.
You can hear this line at 01:35:27 in the Blu-ray version of the movie.
Quote context
[...]
- My evil self is at that door, and I have no power to stop it.
- Stop. No further. I deny you, I give you up.
- In 24 hours you must be 100 million miles out in space.
- The Krell furnaces... chain reaction... they cannot be reversed.
- Oh, no.
- Ninety-eight million point six.
[...]