Our DNP series Low Frequency Off Grid Pure Sine Wave Inverter is the one of the most advanced technology DC to AC conversion products in the world. Output pure sine wave, perfect protection function of overload, short circuit, low/over battery voltage, over temperature etc,AC output power is suitable for all kinds of ACelectric equipment, such as air conditioners, electric motors, refrigerators, lights, televisions, electric fans and other industrial power supply. Our inverter is widely used insolar power systems, wind power systems, wind and solar hybrid systems.