A free program for Android, by picolyl.

The LED Light application is a tool that can be used to light up the LED display of your Android device. It is the perfect app to use when you find yourself suddenly in need of a bright light, such as power outages or entering dark alleys. Even if you don’t have an actual flashlight in hand, you won’t have to fear the dark anymore!

Furthermore, you can set the LED Light app as a widget on your home screen. That means you will not have to fumble through all of your phone’s programs when you need emergency lighting. Do only a few taps on the screen and you will be good to go!