Using the power of three rapid charging solar panels the Opteka SP-10W is your new best friend when you re far from home. Travel with ease using the charger s bungee loops which attach to your backpack. Unfold the device and expose the 10 watt mono-crystalline solar panel each section putting out approximately 600mA under strong sunlight. Dual USB charging ports allow up to two devices to recharge at once at a maximum output current of 2 Amps. No matter where you go the Opteka Triple Panel Solar Charger will be ready for you. *Note: The SP-10W does not include any connecting cables. You will need to use the USB cable that came with your device Specifications Solar Panel Type: 3X Mono-crystalline output of 600mA each Input: 10-Watts Output: Dual 5V Standard USB Ports Operating Temperature: 32-95DegF (0-35DegC) Folded Dimensions: 9 X 6.5 X 1 (23cm X 16.5cm X 2.5cm) Expanded Dimensions: 9 X 26 X 1 (23cm X 66cm X 2.5cm) Weight: 24oz (700g)