The Windows night light feature has been part of the Microsoft operating system configuration since Windows 10 “Creators Update” and is designed to protect the eyes from the blue light emitted from computer monitors.
Protect as much as possible, it is understood, because it is a function that is activated by software and it would be ideal to use screens with certified protection or – better – additional polarizing filters to those that are part of the monitors. In any case, you will see how it is improvement against eye fatigue especially if you have to use the monitor at night and then you fall asleep poorly.
How to enable night light in windows
The night light function works in Windows like a blue light filter for screen, replacing the light colors we normally wear with warmer tones. Activating it in Windows 10 is as easy as clicking the corresponding icon in the notification system on the taskbar.

It can be activated / deactivated from the notification by clicking, but if you want more control over this function, you can manage several functions in the notification tool. General settings, section Display.

There you will see how you can increase or decrease the intensity of this night light. Personally, I use values between 30 and 40, but try the ones that make you feel most comfortable and, by the way, it won’t interfere with the use of the device. You can also set activation times manually or (if you have positioning turned on) the function will start automatically when it gets dark.

This feature is managed in a similar way in Windows 11. Directly in click notifications:

And also from the internal configuration tool:

To say that night light in Windows can be combined with another feature that has spread across all operating systems and major applications. We are talking about “dark mode”, a graphic theme that improves display in some environments, protects the user’s eyes in low light environments and also some screens, especially OLEDs, which are more prone to problems due to the contrast enhancement that this type of use. panel.
Although night light is more effective than blue light, you can combine it with dark / light mode in Windows to see the differences.
