The UL Listed Helical Flashlight Power Bank allows you to charge your smart phone in the dark. Whether you are in an airplane on a late night flight or in a dark room you can use the flashlight function to read a book or help make your way through the room. This 2,200 mAh Li-ion 5V/1A battery back up with charge your smartphone at the same rate as a wall charger. Includes a USB to Micro USB connecting cable which can charge the battery backup or be used to charge devices with a Micro USB input like Android