Brightness does the same job.
This is handy and easy to use application. Even novice user will not encounter any difficulties while using it. You can adjust the screen brightness with the help of little slider. I often sit in front of my mac overnight chatting with my friends overseas. Screen Shade is a good solution when you frequently use your mac in low-lighting situation. However this app is not necessary. Brightness feature in system preferences does almost the same job.
easy to use.
Brightness does the same job More