The Windows 11 Blue Light Filter, also known as Night Light, adjusts the color temperature of your screen to reduce blue light emission. When enabled, the filter applies a warm, yellowish tone to your screen, which can help reduce eye strain and promote better sleep.

Windows 11 comes equipped with a built-in feature designed to reduce eye strain and promote better sleep: the Blue Light Filter. This feature, also known as Night Light, adjusts the color temperature of your screen to reduce blue light emission, which can interfere with your sleep-wake cycle and cause eye fatigue. In this write-up, we'll delve into the details of the Windows 11 Blue Light Filter, its benefits, and how to use it effectively.