Stella's Blog 黛你飛

When you take a flight, have you ever found that why the planes turn lights off when takeoff and in the final moment of descent before a plane touches down? Do you think it is considerate to dim the light and make you easier to rest? Actually, there are some main purpose.

The two most dangerous parts of the journey are during takeoff and landing.

Dimming cabin lights during the day, it is less necessary but does conserve some engine power as the plane hurtles toward flight. When the emergency cases happen, our eyes need 10 to 30 minutes to adjust the darkness which means that the dimming light can help eyes pre-adjust to lower light. When the suddenly evacuate happen at night, those several seconds it takes for your eyes to calibrate to low-light conditions are very precious because you can make the difference in safely exiting the air cabin. Under the dimmer light, emergency lighting and illuminated pathways will be more visible too.

If you want to know more, you can click the link to check

https://www.youtube.com/watch?v=zkFYb6Kcu5I

Reference:

https://www.cntraveler.com/story/the-real-reason-planes-dim-the-lights-during-takeoff-and-landing ​​​​​​​