Features: 1Aluminum Alloy Material: The case of this car inverter is made of premium aluminum alloy strong and durable can prevent collision and drop. 2Intelligent 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. 3Multiple Functions: The inverter has safe charging technology that provides protection against overheat undervoltage and overvoltage charging short circuit overload and overcharge. 4Applications: Has 1 AC power outlet and 4 smart USB ports. Connects to TV refrigerator drills fax machine stethoscopes or anywhere AC power is needed. 5With 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. Specification: Item Type: Car InverterMaterial: Aluminum alloyWeight: Approx. 950g/33.5ozOutput Frequency: 50HZOutput Waveform: Modified sine waveBattery Loss Without Load: < 0.2AMaximum Power Amplifier: 95% or moreOvertemperature Protection: 55 to 77Rated Power: 420W Package List: 1 xCar Inverter1 xCigaretteLighter2 xBatteryClips1 x English Specification