SuperDim - This requires root privileges on your device and a backlit LCD screen (not OLED).
SuperDim lets you dim the display to very low levels--lower than the OS normally allows (that's why you need root privileges)--to save night vision. This will be particularly useful for serious amateur astronomers.
On some devices you can also turn off LEDs (e.g., power LED)
Screen On Toggler is basically a replacement tool for the default search button on your Android phone when you long press it. It allows you to quickly toggle your screen's timeout from always ON to your screen timeout's setting and vice versa.
Once installed, press and hold the search button on your android phone and a dialog will appear
Flashlight Torch - Application to use the screen as a flashlight, when you don't have a camera flash in dark situations. You can customize and change the background color, and you can easily switch between three different intensities: Low, medium and high
Blink - Everyone knows the problem: You don''t want the phone to ring but still want to know when someone is calling. The internal orange-LED-notification is too dark and you don''t know if it''s a mail, SMS or call..
Pencerahan Brightness is an Android application, which allows you to easily adjust screen brightness. You can increase or decrease the screen brightness without the need of searching into the Settings-Display menus. It is great for saving battery life
No LED - some models of smartphones have no LED indicator which notifies about the missed call, sms or other notifications. Having installed this application you can adjust the reflection of missed events represented as colored elements which will stand for indicators and move on the blocked screen
Magnet unlocker - is an application which offers different ways of smartphone unlock. You can unlock your device by means of shaking, while connecting dock or connecting power supply. The deviced will be locked if you disconnect dock or power supply correspondingly
Flashlight call - notifications about missed events by means of flashlight of Android device camera. A user can set up frequency of flashes, time between chains of flashes and other functions. Game features:Unusual way for notificationsSimple interfaceIntuitive user's settings