1、Aluminum Alloy Material: The case of this car inverter is made of premium aluminum alloy, strong and durable, can prevent collision and drop. 2、Intelligent Cooling Fan: The powerful built in intelligent cooling fan only works when the device gets hot, slows and stops when the temperature drops, which allows the inverter to work quietly most of the time. 3、Multiple Functions: The inverter has safe charging technology that provides protection against overheat, undervoltage and overvoltage charging, short circuit, overload and overcharge. 4、Applications: Has 1 AC power outlet and 4 smart USB ports. Connects to TV, refrigerator, drills, fax machine, stethoscopes or anywhere AC power is needed. 5、With A Cigarette Lighter and Two Battery Clips: Can be pluggable 50000 times. If the device is up to 150W, simply plug the cigarette lighter into the cigarette lighter socket. If you need more than 150W of power output, connect it directly to the vehicle battery with a clip. 1 x Car Inverter1 x Cigarette Lighter2 x Battery Clips1 x English Specification Item Type: Car InverterMaterial: Aluminum alloyWeight: Approx. 950g/ 33.5ozOutput Voltage: 220VInput Voltage: 12VOutput Frequency: 50HZOutput Waveform: Modified sine waveBattery Loss Without Load: < 0.2AMaximum Power Amplifier: 95% or moreLow Voltage Alarm: 10V to 11VLow Voltage Shutdown: 10V±2VHigh Voltage Shutdown: 15V±2VOvertemperature Protection: 55℃ to 77℃Rated Power: 420W