Shortcut - Brightness Keyboard
Most laptops use Fn + a Function key (usually F1 – F12 ). Look for a "sun" icon on your keys. Dell: Typically Fn + F11 (down) and Fn + F12 (up). HP: Look for dedicated brightness keys or use Fn + F2/F3 . Lenovo: Often Fn + F5/F6 or Fn + Home/End . ASUS: Usually Fn + F5/F6 .
Chromebooks follow a layout similar to Windows laptops: brightness keyboard shortcut