The MacBook Pro have backlit keyboard. This feature is useful when you are in a low-light. The only problem is that in addition to the F5-F6, Apple does not offer the possibility to adjust the brightness of the backlight from the menu bar.
If you are really annoyed by your PowerBook’s MacBook Pro’s backlit keyboard and You can not control it, you simply have to deal with the behaviour dictated by the ambient light sensor, which sometimes does not work really well. The idea of a backlit keyboard is awesome, but the implementation in Mac OS X has its flaws. Lab Tick aims to fix them.
However, there is a utility that is called Lab Tick . Which will allow you to adjust the backlight of the keyboard. Once installed, it will appear in the menu bar.