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I have a Kindle Paperwhite, and one thing that has puzzled me is the light. The light setting has a slider to set the brightness, and the labels recommend a low setting for dark rooms and a high setting for bright rooms.

What puzzles me is that in bright rooms (e.g., all my daytime reading if the window blinds are open) I turn the light all the way off [1]. One of the points of eInk is that you don't need any extra light when you are in a bright room.

Why does Amazon want me to turn the light up, which eats up the battery? I realize it does make the screen look whiter to have the light on in a bright room, but as far as I can see it does not make a noticeable difference in readability.

The new high end eInk Kindle features automatic light adjustment based on a light sensor. If that means that in bright rooms it is going to crank up the light, I would not be happy. Does it do that? If so, can it be overridden?

[1] well, not quite...the light cannot be turned all the way off on the Paperwhite while reading. It only goes all the way off when you put it to sleep.




> Why does Amazon want me to turn the light up, which eats up the battery?

It's actually easier on your eyes.

> If that means that in bright rooms it is going to crank up the light, I would not be happy. Does it do that?

Probably.

> If so, can it be overridden?

Probably.

http://www.theverge.com/2014/9/17/6353785/amazon-kindle-voya...

Amazon also says that you can fine tune the behavior if you don't like the default.




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