LightBulb

LightBulb is a simple open-source Windows application that you can use to reduce the strain on your eyes when working with a computer in low light or at night. It does not change the brightness of the monitor, it adjusts the color scheme depending on the time of day.

Key features

• Advanced settings;
• Automatic sunrise/sunset time calculation based on selected location;
• Manual sunrise/sunset time setting;
• Smooth change of the color gamma;
• Disable gamma change in games and full-screen applications;
• White list for gamma-dependent applications;
• Global hotkeys for gamma changes;
• Minimal impact on your computer's performance;
• Work without an internet connection.