Feature 1WIDE USAGE: Power inverter could be used for charging mobile phone, laptop, light, digital camera, electric tool, microwave oven, car refrigerator and more, making travel easier. 2COOLING FAN: Built in silent auto control cooling fan, makes it easier for the inverter to dissipate heat, prevent from overheating, with low noise. 3USB PORT AND LCD DISPLAY: The power inverter also comes with USB socket, can output DC5V voltage. LCD screen allows you to intuitively understand the charging state. 4EXCELLENT PERFORMANCE: The inverter has higher driving capacity, better protection for sensitive equipment, lower sound and electrical noise, and lower power consumption. 5HIGH SAFETY: Stable charging design of the car inverter could prevent overheating, undervoltage and overvoltage charging, short circuit, over load, over current, with flame retardant protection, highly safe to use.SpecificationItem Type: Power InverterMaterial: Aluminum AlloyOutput Waveform: Corrected Sine WaveOutput AC Voltage: AC 110V 60Hz (5%)Output USB Voltage: DC 5V 2AOverheating Shutdown: 60 (5%)Actual Power: 300WMaximum Power: 500WInput VoltageUnder Voltage AlarmLow Voltage ShutdownOver Voltage ShutdownNo Load CurrentConversion EfficiencyDC12V (DC11-15V)9.5-11.0V9.0-10.5V14.5-15.5V<0.3A80%DC24V (DC21-29V)19.5-21.0V18.5-20.5V28.0-30.0V<0.5A80% .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Power Inverter2 x Crocodile Clip Cable1 x User Manual