Vantro 500W Watt Car Auto Inverter/ Converter 12V Dc To 220V Ac + USB Car Inverter. Made from durable material Advanced circuit design, excellent product quality. Use this multi-functional car power inverter to achieve highly efficient power conversion. Comes with multiple protection functions: extremely segregation before and after protection; under voltage protection; overload protection; over-current protection; overheat protection; over voltage protection; short circuit protection; reverse connect protection. Provides perfect short circuit protection, electrical appliances and power supply circuit will not have any impact, and the product performance is stable. The Product in Accordance with the European Union CE standard, and Conforms to the ROHS Directive Production. Apply to Power within the Electrical Appliances. It is the Necessary Supplies of Travel, Field Work and Mobile Office, and it Can Successfully Solve the Problem of Electricity Inside the Car. Automatically shut it Down Under over Temperature or overload Condition. Besides, It is in so Compact Size that is Lightweight for Easy and Convenient Carry. Built-in Cooling Fan with Low Noise. Specifications: Output Frequency: 50+/-4HzOutput Waveform: Modified Sine Wave Battery Drain with No AC Load (at 12V Input): <0.4 A Peak Efficiency: >90%Output Socket: Universal Socket (Globally)It has over Voltage Protection: 15-16 VIt has over Voltage Shutdown Output: 15.6 V Under Voltage Protection: 10-11 V Under Voltage Shutdown Output: 9.6 VIt has overload Protection: 540 Working Temperature: -10-50 Degree Centigrade Output Short-circuit Protection: Yes Cooling Type: Fan Colour. The product is a kind of conversion device which widely used in computer, TV, energy-saving lamps, digital camera, mobile phone charging etc. Another advantage is the product with high frequency conversion technology, high conversion efficiency, low noise, light weight, convenient for carry and use.