Packing high performance in a compact size, the Salamander Solar-USB Flashlight-Powerbank combines a 3W LED flashlight with a 2.400 mAh powerbank. Made from quality components resulting in excellent performance in both lighting and charging. Release the watertight bottom cap to access a micro USB charging in port and a USB charging out port. Connect your mobile device (USB rechargeable) such as mobile phone, GPS or PSP with the USB charging cable of this mobile device to juice up the battery. The flashlight is designed so that when it is placed on a flat surface, the solar cell will always turn upwards so it can charge using solar power. Battery 3.7V / 2.400 mAh Lithium. Charging time by solar: 45 hours. Charging time by USB: 5 hours. Lighting time, high brightness: 7 hours. Lighting time, normal brightness: 12 hours. Solar panel 0.25W Output 5V / 0.5A Input 5V / 0.5A.