Step-by-step instructions
- Choose a comfortable dim level.
- Set a nighttime schedule in the app.
- Adjust Windows Night light separately if desired.
- Test on all connected screens.
Why this matters
For external screens, brightness changes depend on DDC/CI. An on-screen slider cannot override a monitor that blocks or does not implement the relevant protocol.
Reduce screen brightness after dark with a Twinkle Tray schedule; color-temperature tools such as Night light are separate settings. This procedure is relevant to twinkle tray nighttime brightness on Windows 10 or Windows 11. Avoid assuming that settings on one display will apply identically to another model.
How to verify the result
Observe the actual display, not just the position of the on-screen slider. Record any mismatch between the requested level and the visible result.
Frequently asked questions
Set Up Nighttime Brightness in Windows?
Reduce screen brightness after dark with a Twinkle Tray schedule; color-temperature tools such as Night light are separate settings.
What should I check if it does not work?
Brightness and color temperature solve different problems and should not be described as the same feature.
How can I verify the change?
Observe the actual display, not just the position of the on-screen slider. Record any mismatch between the requested level and the visible result.
Related guides
- Control Brightness on Multiple Monitors
- Adjust External Monitor Brightness in Windows
- Enable DDC/CI for Twinkle Tray
- Adjust All Monitors at Once
Twinkle Tray for Windows
Use a trusted source and verify the program before installation. FileDrop is supplied by the site operator.
Technical references: project repository and README · monitor detection notes. Information checked against developer documentation.