How to change the screen brightness on my HTC Windows Phone 8S

Click each step to see the action. You can also click the picture or use the arrow keys.

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Reducing the screen brightness will help conserve battery power.
1. Swipe left to go to the App list.
2. Scroll to and touch Settings.
3. Scroll to and touch brightness.
4. Touch the Automatically adjust slider.
5. Touch Level.
6. Touch the required brightness level (e.g., low).
7. The brightness has been changed.