... or 600W, HI Modified Sine Wave InV Off-Grid Solar Power system FG-SPS300/600W * Grid hybrid design optional * Output ... KWH/D): 1.2 for 300W, 2 for 600W * System DC voltage: 12VDC * Bat.: Gel, 4*100AH for 300W ... top or mount on wall Features of the system* Battery based OFF-GRID solar system, * used for home or office* MPPT ... ,Arrester,wire collector ,cables set. Off-Grid Solar Power system FG-SPS300/600W