Main goal of the Night Mode is to allow you to reduce thebrightness of the screen lower than what you can achieve with thedefault settings. If you use your smart phone at night and feelsthat screen brightness hurt your eyes 'Night Mode' is here torescue you. This app works as Screen Filter or Dimmer, you canreduce the screen brightness even below the lowest possible bydefault settings and protect your eyes. This app is far morepowerful than Android's default brightness setting and filter outthe excessive brightness and dims the screen. Great for low-lightweb browsing, eBook reading and games. It can even saves batterylife for AMOLED displays! * With the app you can also schedule theNightMode to Turn On or OFF automatically at any particular time. *You have the option to control the Ringtone and Notifications soundwhile NightMode is active. You can choose from options to 1.Disable the sound and put the device in vibrator mode. 2. Disablethe sound and vibration completely. Once any option is chosen itwill become active as soon as Night Mode becomes active. When NightMode deactivates, it will set the sound settings as before theactivation. * Ringtone and Notification sound settings doesn'taffect the sound for Alarms and Music. keyword : Dimmer, ScreenFilter