1.In-car Charger, with Protection from Short Circuit/Overload/Over Voltage/Under Voltage/ ... (according to your requirements)Output frequency: 50 or 60HzOutput voltage for USB charging port: 5V DC, 1A (2A maximum)Converter efficiency ... , over-load, over-temperature, low battery voltage, over battery voltageIndicator: dual-color LED (green for operating, red for shutdown)Over voltage shutdown: 15 to ...