Feature of GOOTU 8.2KW Dual Output Solar Inverter ▲Pure sine wave solar inverter(on/off Grid) ▲Dual AC Output / PV Input ▲Output power factor 1.0 ▲WIFI&GPRS available for IOS and Android ▲Inverter running without battery ▲One-key restoration to factory Settings ▲Built-in Lithium battery automatic activation ▲Built-in 160A(for 8.2KW/10.2KW)MPPT solar charger ▲High PV input voltage range (90~500VDC) ▲Built-in anti-dusk kit for harsh environment ▲Smart battery charge design to optimize battery life ▲Overload/ Over temperature/ Short circuit protection ▲Touch button ▲Cold Start Function