The 2200 mAh battery capacity on this flash light power bank is enough to charge a mobile device or tablet. Reusable power bank charges via USB cable (included). Use push on/off button for flashlight function. Green indicator light turns on when device is fully charged. Input: 5V/800mA. Output: 5V/1000mA. 1.125" Diameter x 4.5" L. Engraved with the Ruritan logo.