1Dual USB: The power inverter has 2 USB ports and AC power outlets, plus a free cigarette lighter and 2 battery clips. The inverter can provide 300 watts of continuous power and 4000 watts of peak power (please ensure that the total power rating of the connected devices is 300W). 2LED Display: LED display shows battery input voltage, output voltage. The cigarette lighter cable can easily power the device. If the output power is higher than 200W, use clip to connect the battery. 3Broad Compatibility: One AC outlet and two USB ports provide fast charging for cell phones, computers, laptops, breast pumps, nebulizers, razors, emergency equipment and more, and can be used as an emergency power source. 4Multiple Circuit Protection: Equipped with built in fuse, safe charging design and cooling fan, the inverter is protected against overvoltage, overload, overcurrent, short circuit, undervoltage, overheating and short circuit. 5Widely Used: Lightweight and compact, the inverter is perfect for vacations, camping and work trips. It plugs into almost any 12V power output vehicle, providing charging opportunities anywhere.