12V to 220V Pure Sine Wave Inverter 4000W Pure Sine Wave Power Supply Transformer with Remote Control & Dual AC Outlets for RV, Car, Truck

Features: 1. Dual LCD digital display allows you to monitor the output voltage and battery voltage at all times. 2. Addresses the critical issue of inverter protection when starting electrical devices. 3. For the low-power, non-professional user market, a positive and negative reverse polarity protection function has been added. 4. Intelligently controlled oil seal fan, more energy-efficient and quieter. 5. Digital MCU control, more accurate output waveform, frequency, and output voltage, with fast protection circuit response. Suitable for use in automobiles, ships, mobile postal and telecommunications, public safety, emergency services, and other fields. -15.5V Output voltage: 110V/220V (optional) Output voltage range: 110V 10% / 220V 10% Frequency: 9.5V 50Hz / 60Hz High voltage protection: Maximum protection voltage 15.5V Load protection: Yes Output short circuit protection: Yes Positive and negative reverse polarity protection: Yes Regulated output: Yes Buzzer: Yes USB interface: 2.1A x 2 Input terminal connection method: Terminal Output interface: International general plug Product size (mm): 161mm/6.28in x 112mm/4.37in x 56mm/2.18in Package weight: 650g Power supply 1