Brightness widget
Review of Brightness Battery Widget available on Android in Android Market:
https://market.android.com/details?id=com.kreptile.BrightnessBatterySaverWidget
https://market.android.com/details?id=com.kreptile.BrightnessBatterySaverWidget
Easy to use widget has a feature on the screen for you to adjust the brightness setting, without the need of searching into the menus