1、With external fuse, has reverse prompt, battery level display function. 2、With 4 USB port, 2 cigar lighter ports, convenient to use. 3、Built-in microcomputer processor and complete protection circuit, provide installation protection functions, such as undervoltage protection, overvoltage protection, overload protection, over-maintenance protection, short-circuit protection, over-tempera 4、Intelligent automatic protection function, advanced anti-interference technology, soft start circuit, convenient operation mode. 5、High converting efficiency. It converts a voltage of 12V to 220V. Features: 1.With external fuse, has reverse prompt, battery level display function. 2.With 4 USB port, 2 cigar lighter ports, convenient to use. 3.Built-in microcomputer processor and complete protection circuit, provide installation protection functions, such as undervoltage protection, overvoltage protection, overload protection, over-maintenance protection, short-circuit protection, over-temperature protection, surge protection, etc. 4.Intelligent automatic protection function, advanced anti-interference technology, soft start circuit, convenient operation mode. 5.High converting efficiency. It converts a voltage of 12V to 220V. Specifications: Material: metal Color: As picture shown Circuit Topology: Full Bridge Output voltage waveform: correction wave Input voltage range: 12 (V) Output voltage: 220 (V) Output power: 3000 (W) Inverter efficiency: 85 (%) Voltage regulation rate: 5 (%) Load adjustment rate: 5 (%) Rated capacity: 1000W Output frequency: 50 (HZ) Maximum output power: 3000 (W) Continuous output power: 420 (W) Packing List: 1 x Car inverter 1 x Black and red power cord 1 x Car charger cable 1 x Instruction Note: When installing the cable, use the wire supplied by the manufacturer. If the 220 volt output line is too long or the wire cross-sectional area is too small, a large amount of power loss will be generated on the wire, and the power at the load end is small and the voltage is low. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.