Flashlight is an excellent app to show you a bright way to go. The following is the feature list.1. Use camera photoflash to be the light source.1.1 Flashlight app can be run in the background service mode. That means you can run Flashlight app and then run other app such as GPS app at the same time.1.2 Launch Flashlight app again can close the background service.1.3 Support blinking in the background service mode.1.4 Support SOS signal blinking in the background service mode.1.5 When the Flashlight is running as a background service, that means the system camera service is occupied. So the default camera program will not be able to launch. Please run Flashlight app again to close the background service.2. Use white display backlight to be the light source.2.1 Show white screen with maximum brightness.2.2 Keep awake for display. Flashlight app will lock the screen to prevent to enter the automatic standby mode.For more information, please refer to http://www.leaderg.com/app/Flashlight.phpFlashlight app is the product of LEADERG Co., Ltd. If you have any question about this product, please send email to us. We will reply you as soon as possible.Thank you!PS: The trial is 20 times. If you like this app, please buy it. Thank you!