Off- grid inverter designed and made for New energy power generation system, which is the core component of photovoltaic power generation system, change the DC electrical energy into AC electric,mainly apply for PV power station, wind, light, oil,storage complementary generating system and the filed of Photovoltaic power system. We use the new energy power generation with high inverter efficiency and advanced performance to provide absolute reliability for Traffic inconvenience, harsh mountains, pasturing area, border defence,island,etc without electricity area.