... :12-24V DC. Output:5V1A Mini,useful,Convenient.Short-circuit auto usb car charger ,car usb charger ,mobile charger1 ... digital products,charged with usb cable7 Optional function : short circuit and overload protection . high-voltage and high-temperature protection ... any vehicle.(Use together with USB charging cable.) Patented circuit board designed to protect your valuable gadgets from short circuits. ...