There are several applications available at the market to turn your Android phone into a multi-purpose device. For example, you can use it as a TV remote control, sleeping aid, lighting source, etc. Tiny Flashlight + LED let you turn your phone into a multi-use lighting source, which is useful in emergencies like power failure. For example, you can use it as a torch in the night, as a warning light, or as a lighting source in case the electricity stops.
Tiny Flashlight + LED is a free android app, which is very simple to use and compatible with most Android phones.
Install and launch the app. You will get a window with large power button as shown above. Tap on the button will turn on/off the camera flash.
You can also see a small button on the upper-right corner. Tap on it to get other options, like the Police Light, Warning Light, Electric Bulb, etc.
Tiny Flashlight + LED can be downloaded free at Android Market.