The improved sine wave inverter can reliably convert the direct current in the battery into alternating current, which can then be used to power lights, computers, medical equipment and various equipment The inverter with built-in independent radiating fan and additional USB charging port can be connected to many devices Features:[Modified sine wave output] AC modified sine wave output has low interference, low noise and high load capacity, which will not affect the service life of the equipment The LED display [Surge Peak Power] will display the battery"s input voltage and output voltage The inverter used to convert direct current to alternating current can convert the peak power of 4000 watts of direct current to alternating current [Quick Charge] Car inverter with smart digital display, 2 USB ports and power socket Two USB ports can charge most mobile phones and tablets at the same time, and these sockets are suitable for laptops, CPAP machines, game consoles, Kindles, TVs, DVD players, lights, iPads, RVs and other electronic devices [Mufti Protection] Built-in fuse can protect your device The safe charging design can prevent "+" "-" reverse connection, overheating, undervoltage and overvoltage, short circuit, overload and overcharge [Widely used] Lightweight and compact, very suitable for vacation, camping and business travel It can be connected to almost any 12 V vehicle and provides charging options anywhere Specifications:Output voltage: 220 VColour: Blackmaterial: plasticWaveform: modified sine wavePeak power: 4000WInput voltage: 12VInput voltage range: 9 5 V-15 5 V Output voltage range: 110 V10%/ 220 V10%Frequency: 50Hz / 60HzEffect> 90%Circuit topology: push-pullNo-load current: 0 7ALow voltage protection: minimum protection voltage 9 5VHigh voltage protection: maximum protection voltage 15 5VOverload protection: yesOutput short circuit protection: YesPositive and negative reverse link protection: YesExport control: yesDisplay: display output voltage, battery voltageInput terminal wiring: terminalOutput interface: 1 * socket, 2 * USBUSB output: 2 1AThe length of the car cigarette plug: 42 5 cmThe length of the battery terminal: 46 8 cmProduct size: 16 1 * 11 2 * 5 6 cm / 6 33 * 4 4 * 2 2 inchesPacking size: 18 7 * 10 * 14 5cm / 7 36 * 3 93 * 5 7inPackage weight: 650 gramsPacking list:1 *Improved sine wave inverter2 *Battery terminal1 *Car cigarette butts1 *User ManualAttention:1 Keep the inverter dry, do not let the inverter come into contact with water or other liquids, and keep the inverter away from moisture or water 2 Cool the area and keep the temperature between 0 and 40 degrees Celsius Do not place the inverter near ventilation slots or other equipment Try not to let the sun shine directly on the inverter