Screen brightness is an essential aspect of user comfort and productivity when using a Mac. Proper screen brightness can reduce eye strain, save battery life, and improve visibility in various lighting conditions. This article will guide you through the different methods available for adjusting screen brightness on a Mac, including using system preferences, keyboard shortcuts, and terminal commands.

Examples:

1. Using System Preferences:

   • Open "System Preferences" from the Apple menu.
   • Click on "Displays."
   • Adjust the brightness slider to your desired level.

2. Using Keyboard Shortcuts:

   • Most Mac keyboards come with brightness keys (usually F1 and F2).
   • Press the F1 key to decrease brightness and the F2 key to increase brightness.

3. Using Terminal Commands:

   • Open the Terminal application.
   • To increase brightness, use the following command:

     sudo brightness -i 0.1

     This command increases the brightness by 10%.

   • To decrease brightness, use:

     sudo brightness -d 0.1

     This command decreases the brightness by 10%.

4. Using Automator to Create a Brightness Adjustment Script:

   • Open Automator and create a new "Application."
   • Add a "Run Shell Script" action.
   • Enter the following script to set brightness to 50%:

     brightness 0.5

   • Save the application and run it whenever you need to adjust the brightness.