... and AC output completely electric insulation Application: wind denerator,Solar battery pack set,house,vehicle,ship,navigation, mobile ... wave formPure sine waveBattery chargeCharge way AC charge ,Solar chargeCharge voltageDC13.7VDC13.7V/27.5VDC27.5V/56VCharge current10A ... ,over charge, over heatingWork temperature-20~60°COver heating protection45°Cfans speed up rotate,60°C turn off automatically ...