Usage Tips:Features:1. Dual LCD digital display allows you to keep the output voltage and battery voltage value at the same time. any time.2. Default prompt function. In addition to the different sound prompts, it can also be displayed on the screen. in a more intuitive way from the display screen (e.g. battery undervoltage, battery overvoltage, overload, high operating temperature, output short circuit, etc.).3 . Overload delay closing function is added in the product to solve the sensitive problem of inverter protection when the soluble electrical appliance is started.4. The market of non-professional low-power users has increased the protection function against positive and negative pole returns.5. Sealing fan Intelligent temperature control oil. When the inverter is working, it can work at high speed. a certain temperature, which is more energy efficient and quieter.6. Digital MCU control, output wave type, more accurate frequency, accurate output voltage, fast response of protection circuit. in cars, boats, etc. steam, posts and mobile telecommunications, security public, emergencies and other areas. -12V Output voltage: 110V Output voltage range: 110V 10 percent / 220V 10 percent Frequency: 50Hz / 60Hz of 9.5VHigh voltage protection: with a maximum protection voltage of 15.5VProtection against overloads