Features: 1. Dual LCD digital display allows you to keep track of the output voltage and battery voltage values at any time. 2. Damage prompt function. In addition to various sound prompts, it can also be displayed more intuitively from the display screen (such as low battery voltage, battery overvoltage, overload, high operating temperature, output short circuit, etc.). 3. The product has added an overload delay closing function to solve the problem of sensitive inverter protection when soluble electrical appliances are started. 4. The positive and negative pole reverse connection protection function has been added to the small power non-professional market. 5. Intelligent temperature-controlled oil-sealed fan. When the inverter is working, it can work at a certain temperature, which is more energy-saving and quieter. 6. Digital MCU control, output waveform, frequency is more accurate, output voltage is accurate, and the protection circuit responds quickly. Automobiles, ships, mobile post and telecommunications, public security, emergency and other fields. -12V Output Voltage: 110V Output Voltage Range: 110V 10% / 220V 10% Frequency: 9.5V up to 50Hz / 60Hz High Voltage Protection: Maximum protection voltage 15.5V Overload Protection: Yes Output Short Circuit Protection: Yes Positive and Negative Reverse Connection Protection: Yes Output Voltage Stability: Yes Buzzer Protection: Yes USB Interface: 2.1A x 2 Input Terminal Connection Mode: Terminal Output Interface: International Universal Jack Product Dimensions (cm): 18.7X10.0X14.7cm Packaging Information: Packaging Dimensions: 187x100x145mm / 7.29x3.9x5 .66in Packaging Weight: 1040g lbs Overall Boxed Package Contents: 1 x Power Inverter 1 x Alligator Clip 1 x Cigarette Lighter Note: 1. Please allow 1-2 mm error due to manual measurement. 2. Item colors displayed in photos may appear slightly different on your computer monitor because monitors are calibrated differently.