1. Features: 1. The dual LCD digital display enables users to view the output voltage and battery voltage values simultaneously at any time. 2. It has a default prompt function. Besides different sound prompts, it can also present information in a more intuitive way on the display (e.g., battery under - voltage, battery over - voltage, overload, high operating temperature, output short - circuit, etc.). 3. The product has added an overload delay shutdown function to address the issue of the inverter's overly sensitive protection when the capacitive electrical appliance starts. 4. The market for non - professional low - power users has been expanded; it has a reverse connection protection function for positive and negative poles. 5. The sealed fan uses intelligent temperature - controlled oil. When the inverter is operating, it can run at high speed at a certain temperature, which is more energy - efficient and quiet. 6. It is controlled by a digital MCU. The output waveform and frequency are relatively accurate, the output voltage is precise, and the protection circuit responds quickly. It is suitable for scenarios such as the steam fields of automobiles and boats, postal and mobile telecommunications, security, and emergency situations. 2. Input voltage: 12V 3. Output voltage: 110V 4. Output voltage range: 110V±10% / 220V±10% 5. Frequency: 50Hz / 60Hz (9.5V) 6. High - voltage protection: The maximum protection voltage is 15.5V 7. It has an overload protection function.