Turn on night light

The night light feature in Windows 11 enables users to switch to warmer color tones, reducing blue light emission to alleviate eye strain or fatigue.
  1. Open the quick settings menu by selecting the network, sound, or battery icons (three icons (wi-fi, sound, and battery) that appear on the Windows 11 taskbar) on the far right of the taskbar or by using the keyboard shortcut the Windows 11 logo key + A.
  2. Select the button for night light to turn it on or off.
    Note: Some Windows 11 versions allow users to customize their quick settings. If the night light button is not visible, you can add it to the quick settings menu by selecting the edit button (an icon of a pencil, indicating customizable).
For more tips on reducing eye strain or fatigue, visit https://www.lenovo.com/us/en/compliance/visual-fatigue.