SANDI SDP series Low Frequency Off Grid Pure Sine Wave Inverter is one of the most advanced DC to AC conversion products in the world. It's widely used for solar energy,Website:http://www.cnsandi.com, wind turbine and other renewable energy systems, also suitable use in the mountains, pastoral, border, island, vehicles, ships and other areas without electricity which can provide and guarantee effective power supply. It has the main advantages of high quality sine wave AC output, microcomputer control, humanness design, high efficiency, low no-load loss and no pollution. The inverter can also supply AC power to all kinds of electric equipment, air conditioners, electric motors, refrigerators, fluorescent lights, televisions, electric fans and other industrial power supply.