Dual LCD digital display allows you to maintain output voltage and battery voltage values at all times.Default prompt function.In addition to the various audible indications, it is also possible to display them more visually from the display screen (e.g. insufficient battery voltage, excessive battery voltage, overload, high operating temperature, short circuit ofexit, etc.). Overload delayed close function was added to the product to solve the sensitive problem of protecting the inverter when soluble appliances start. The small power non-professional user market added a positive and negative feedback protection function.Intelligent temperature control oil seal fan. When the inverter is working, it can operate at a certain temperature, which is more energy efficient and quieter.Digital MCU control, output wave type, more accurate frequency, more accurate output voltage, faster protection circuit response. In the fields of automobile, marine, mobile post and telecommunications, public security, emergency, etc.