Why do aeroplanes need to turn off the internal lights when taking off and landing?



Answers:
I am a pilot (not joking!) and the answer is close to the one proposed by xyzl.

It's actually to accustom the passengers' eyes to the outside lighting conditions, so that they are better placed in the event of an evacuation.

Nothing whatsoever to do with power consumption or circuits or anything like that!
I'm not positive but I think that all of the systems that come on during take-off and land require more power than the plane uses during flight.
To see better the out side lights.
I am also not certain, like disillusioned, but I think it is for the same reason that its not good to drive a car at night with internal lights on.namely, its easier for the driver (or pilot in this case) to see outside and see clearly in the dark from a darkened plane than it is from a lit plane. If you think this doesn't make sense, try looking out into the dark at home from a lit room versus an unlit one.
i am a pilot joking but i did a resreach and found out they need alot of power taking off so they shut the ligths off
not to breke the energy cicuit
lol
They want you to feel asleep while landing(so when crash landed, you shouldnt panic)
Because they're stupid
Statistically, an accident is most likely to happen during those phases of flight. If the need for an emergency evacuation occurs dimming the lights makes it easier to clearly see outside conditions (fire, danger) as your eyes will be adjusted, plus there will be no glare of light off the windows on the inside.
to see better outside and to give the pilots better chance when taking off and landing.

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