Feature: 1. WIDE 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. 2. COOLING FAN: Built in silent auto control cooling fan, makes it easier for the inverter to dissipate heat, prevent from overheating, with low noise. 3. USB 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. 4. EXCELLENT PERFORMANCE: The inverter has higher driving capacity, better protection for sensitive equipment, lower sound and electrical noise, and lower power consumption. 5. HIGH 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. Specification: Item Type: Power Inverter Material: Aluminum Alloy Output Waveform: Corrected Sine Wave Output AC Voltage: AC 110V 60Hz (±5%) Output USB Voltage: DC 5V 2A Overheating Shutdown: 60℃ (±5%) Actual Power: 300W Maximum Power: 500W Input VoltageUnder Voltage Alarm Low Voltage Shutdown Over Voltage ShutdownNo Load Current Conversion Efficiency DC12V (DC11-15V) 9.5-11.0V 9.0-10.5V 14.5-15.5V