Apple 27” LED Display Windows 7 / 8
Brightness controller is a small tool that allows the user to adjust the backlight brightness of Apple Displays on a Windows PC.
I only own a 27″ Cinema Display and have to rely on the users to do the testing for other displays.
Brightness controller has been tested on Windows 7 and 8 in both 32 and 64bit. But it should also work fine on Windows Vista. It also supports multiple displays at once.