General description The Pure Sine Inverter 12v 220v 4000W is designed to provide reliable power conversion with a pure sine wave output. It features dual LCD digital displays for real-time monitoring of output and battery voltage, along with a fault prompt function for intuitive alerts on various issues such as battery undervoltage and overload. Technical specifications Output voltage: 110V (±10%) / 220V (±10%) Frequency: 50Hz / 60Hz Input voltage: 12V High voltage protection: Maximum protection voltage of 15.5V Overload protection: Yes Output short circuit protection: Yes Positive and negative pole reverse connection protection: Yes Output voltage stabilization: Yes Buzzer protection: Yes USB interface: 2.1A x 2 Product dimensions: 18.7 x 10.0 x 14.7 cm Package dimensions: 187 x 100 x 145 mm Package weight: 700g Compatibility and accessories Includes 1 Power Supply 1 Alligator Clip 1 Cigarette Lighter Other information Intelligent temperature control oil seal fan for energy-saving