... solar inverter 3, Multi-protection 4, 5 Years Warranty 5, with dc to dc charging SMS series ON/OFF grid auto ... Inverter 1.5KW/single phases/pure sine wave/mains and battery backup is an innovative product for grid tie and off grid ... in the power to loads, at the same time charging battery, and the excess power will feed-in grid; when ... Inverter 1.5KW/single phases/pure sine wave/mains and battery backup