Turn off your reading light when the cabin lights are dimmed during takeoff and landing. Have you ever wondered why they dim the cabin lights at when takeoff and landing when it is dark outside. Well, it’s not because they want to make it romantic or need the extra power for takeoff. There is a very serious reason for dimming the cabin lights.
The lights are dimmed during takeoff and landing so if there is an emergency your eyes will have adjusted to the darkness. So next time the lights are dimmed, don’t be the “one” that turns on their reading light.