Donxin New Power Inverter USB 1000W DC 12V to AC 220V Car Converter Electronic USB Port Durative output power: 500W ; Twinkling maximum power: 1000W (This is the momentary boot powernot the rated real power!) This product is the use of advanced chip technology developed by PWM,have the real achievement of smaller,lighter,quitter and high conversion efficiency. This product is designed to protect the electrical and automotive circuits in use.Output interface meet the nation standard plug This USB 1000W power Inverter can be operated with your Car Cigarette socket or direct connected with wires clips. Input Voltage:10~15V(DC12V);Built-in fuse:40A;Undervoltage alarm:10.4~11.0V