A. High conversion efficiency. It can convert 12V DC to 220V AC. B. It has overload and overheat protection functions. This is a voltage converter that meets international standards and has under - voltage shutdown protection. C. The AC power is 300 watts, with low/high battery cut - off functions. It is equipped with an automatic thermal shutdown function and will shut down safely in case of overheating or overloading. D. It adopts advanced chip technology with high conversion efficiency. It is equipped with an intelligent cooling fan system and multiple protections are achieved through a CPU microprocessor. E. It is suitable for electrical and automotive circuits. It can be operated through the car socket or directly connected with cable clamps. It uses an aluminum alloy case, which is anti - oxidation, strong and durable. F. Input voltage: 12V DC. G. Output voltage: 220V±10% AC. H. Output frequency: 50/60 Hz±3 Hz. I. Output waveform: Modified sine wave. J. USB output: 1 USB port, 5V/2.4A. K. Overheat protection temperature: 65°C. L. Low battery cut - off voltage: 9.7V. M. High battery cut - off voltage: 15V. N. No - load current: Less than 0.4A. O. Conversion efficiency: 85%. P. Continuous AC output power: 300 watts. Q. Power: 500 watts. R. Important tips: - Check the battery voltage: 12V (note that this product is suitable for 12V batteries, not 24V batteries) and it is compatible with electronic devices, laptops, etc. - Turn off or unplug the switch when leaving the car to save battery power. - Note that the cooling fan will make a slight noise when the device is running. - Only use 220V devices on a 12V power supply. S. Product type: Power inverter. T. Color: Silver. U. Material: Aluminum alloy. V. Package contents: 1 inverter. W. Only the above - mentioned package contents are included, and other items are not included. X. Note: Light reflection and different displays may cause slight differences between the color of the item and the actual object. A measurement error of ±1 - 3 cm is allowed.