Features: brand new and high quality [LED display] LED display shows battery input voltage and output voltage. The cigarette lighter cord can easily power the device. If the output power exceeds 150W, please use a battery with an alligator clip. [Quick charge dual USB ports] 1 AC socket, 2 usb ports, which can provide fast charging for mobile phones and laptops, breast pumps, razors, atomizers, emergency rescue equipment, etc. Can be used as an emergency power source [for Protection] Built-in fuse, safe charging design, cooling fan to prevent overheating of the vehicle power converter, saving electricity and energy. Overvoltage, overload, overcurrent, short circuit, low voltage, over temperature, short circuit for protection. [Lightweight design, high quality] Lightweight and compact, it is very suitable for vacation, camping and business travel. It can be connected to almost any vehicle with 12V power output, providing the possibility of charging anywhere. [4000W Power Inverter] Car power inverter with 2 USB ports and AC outlet. Overload power: 4000W, the power inverter comes with free cigarette lighter and 2pcs battery clips, providing 400W continuous power, 4000W maximum power (Please make sure the total rated power of connected devices is ≤ 400W). Specifications: Material:Metal,ABS Size:Approx.16.5x11.2x5.6cm/6.5x4.4x2.2in Input Voltage: 12V Input Voltage range: 9.5V-15.5V Output Voltage: 110V/220V Output Voltage Range: 110V±10%/220V±10% Frequency: 50Hz/60Hz Inverter Efficiency: 90% Circuit Topology: Advancing No-load Current: ≤0.7A Over Temperature Protection: 60℃ Type:AC110V,AC220V Net Weight:550g Package Includes: 1x Car Inverter 2x Battery Clip 1x Cigarette Lighter Plug 1x User Manual note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.