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. Item Type: Car Inverter Material: Aluminum alloy Weight: Approx. 950g/33.5oz Output Frequency: 50HZ Output Waveform: Modified sine wave Battery Loss Without Load: < 0.2A Maximum Power Amplifier: 95% or more Overtemperature Protection: 55℃ to 77℃ Rated Power: 420W 1 x Car Inverter 1 x Cigarette Lighter 2 x Battery Clips 1 x English Specification