Night light turns your screen amber colored to make it easier to look at your screen or read in dim light. It will be easier to fall asleep while using your device.

Android 9
Step 1:  Open the  settings
Step 2:  Tap on  Display
Step 3:  Tap on  Night light
Step 4:  Tap on  Turn on now
  1. Open the settings
  2. Tap on Display
  3. Tap on Night light
  4. Tap on Turn on now

Android Instructions
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