Features 1、High compatibility with USB devices. It provides protection against overvoltage, short circuit, overload and overcharging. 2、Intelligent temperature control, when the working temperature reaches 65℃, the cooling fan will automatically turn on, with good cooling effect and low noise. 3、With colorful ambient light, it will light up as long as the inverter switch is turned on after power on, which is stylish and attractive. 4、High‑quality aluminum alloy shell, sturdy, corrosion‑resistant, durable and beautiful. Easy to carry, suitable for vacation, work trip, camping, etc. 5、It can be used to charge laptops, DVD players, car refrigerators, car vacuum cleaners, game consoles, TVs, DVD players, lights, smart phones and other electronic devices. Specifications: Item Type: Power Inverter Material: Metal Input Voltage: DC11-18V Output Voltage: 100V-120V Output Frequency: 60Hz Low Voltage Alarm: DC10V-11V Low Voltage Shutdown Voltage (no load): DC10V±2V High Voltage Shutdown Voltage (no load): DC15V±2V No Load Loss: <0.2V Conversion Efficiency: >80% Output Waveform: Modified Sine Wave Actual Power: 650W Peak Power: 4000W Intelligent Fan Cooling: Automatically turn on when the working temperature reaches 65℃ How to Use: 1. Wiring:Red wire connect to positive pole, black wire connect to negative pole 2. Connect the cigarette lighter to the car power 3. Turn on the inverter switch and start using Package List 1 x Power Inverter 1 x Cigar Lighter 2 x Clip 1 x Manual