This is an inverter with SMT chip technology and intelligent protection level, which has high reliability. Ideal for charging phones, tablets, laptops, digital cameras, fans, etc. Widely used in automobiles, ships, postal and furniture communications, public security, emergencies and other fields. The digital LCD display allows you to track the output voltage and battery voltage values at any time. Digital MCU control, output waveform, more accurate frequency, more accurate output voltage, fast response of the protection circuit. In addition to various sound information, the error message function can also be displayed more intuitively through the monitor screen (such as low battery voltage, battery overvoltage, overload, high operating temperature, output short circuit, etc.). Multiple protection functions: overload, overvoltage, undervoltage, overheating, short circuit, overcurrent. Check valve when the battery is connected Cooling system: The built-in high-efficiency fan works