This product is designed to supply power for outdoor 12V applications. You will enjoy convenient electricity wherever you go. Feature: Compact designed With blinking charging indicator to give a clear view that the generator is working. With detachable connectors for different application, like battery clamps, cigarette lighter plug, and any other connector that the customer needed. With strong stand to help get maximum power. With built-in diode to prevent reverse charging. Can charge a wide range of applications, can be served as battery maintainer for marine boat, motor house or big vehicle. Suppying power to notebook computer, satellite telephone, electric hand tool like cordless drill. Or as a independent power source for outdoor activity like camping, exploration. Specification: Use Amorphous silicon solar cells Power: 13 Watts maximum Working voltage: equal or greater than 14V Working current: equal or greater than 750mA Dimension: 20.07" x 14.76" x 1.57" (510mm x 375mm x 40mm)