1. LCD dual digital display allows you to maintain the output voltage and battery voltage value at any time. Error 2. Instantaneous function. In addition to various sound input prompts, it can also be more intuitively displayed by the screen (for example, battery undervoltage, battery overvoltage, overload, high operating temperature, output short circuit, etc.). 3. The product adds an overload delay shutdown function to solve the sensitive problem of inverter protection in electrical appliances. The low-power non-professional user market has added positive and negative feedback protection functions. 4. Intelligent temperature control oil seal fan. When the inverter is working, it can work at a certain temperature, which is energy-saving and quiet. 5. Single-chip digital control, output waveform, frequency is more accurate, output voltage is more accurate, protection circuit response speed is faster.