How to Turn ON Night Light or Blue Light Filter in Windows 10

The built-in Night Light feature will protect your eyes from harsh blue light. Here is how to turn on Night Light in Windows 10.

For a long time now, Windows has a built-in feature that filters out the blue light emitting from your desktop or laptop screen. However, this feature is disabled by default and needs to be enabled manually.

In case you don’t know, almost any type of modern screen, be it your monitor or a mobile phone, emits blue light. Generally, this is not a problem. However, when it comes to the nighttime, the blue light emitting from your screen can cause interference with your regular sleep schedule. To be specific, compared to other types of light, the blue light at night time can suppress the secretion of melatonin which in turn causes you to sleep less. If you are interested, do check out this Harvard Health page for more information on the Blue Light and its effects on your sleep.

To mitigate this, Microsoft added a new blue light filter feature called Night Light in a previous build. When you turn on the Night Light feature, it will reduce the blue light from your screen by changing its color temperature to warm. Of course, you can configure the warm color temperature from the Night Light config page.

In this simple and straightforward Windows 10 guide, let me show you the steps to turn on Night Light and how to schedule Night Light to turn on automatically at night time.

Turn on Night Light in Windows 10

You can turn on the Night Light setting from the Windows 10 Settings app. Here is how.

  1. Open the Settings app.
  2. Go to the “System” page.
  3. Select the “Display” tab.
  4. Turn on the “Night Light” feature.
  5. Click on the “Night light settings” link.
  6. Use the slider to set the strength of the night light.
  7. Close the Settings app.

A quick tip: You can also turn on night light by clicking on the “Night Light” button in the Notification center.

First, open the Settings app with “Windows Key + I” keyboard shortcut. After opening it, go to the “System -> Display” page and turn on the “Night light” option.

turn on night light in windows 10

After that, click on the “Night light settings” link under the Night Light option. In this page, you can adjust the color temperature using the slider. As you move the slider, Windows will show how the screen will look like. Set the color temperature according to your preference.

set night light strength

To turn on the Night Light feature automatically, turn on the “Schedule Night Light” option. If you want Windows to turn on the night light according to the actual sunset and sunrise timings then select the “Sunset to Sunrise” option. In case you are wondering, Windows 10 gets this information via location permission. Alternatively, you can set your own timings by selecting the “Set hours” option. If you want the night light to start at a specific time, I recommend you choose the “Set hours” option.

schedule night light

That is all. It is that simple to turn on night light feature in Windows 10.

If you are stuck or need some help, comment below and I will try to help as much as possible.

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