Originally Posted by PantLoad
Assuming things turn to ^$%& and an emergency evacuation is required, you don't want to be night blind because of bright cabin lights.
thank's, i was think it would be something like that.
i asked the question because my nephew asked me. i had to pick up my brother and his family returning from their holiday .i 'm a PPL ,so his six old son was wondering on the flight home why they turned out the lights and he decided he'd ask me.
couldn't think of any other reason than for safety .