... :300W or 600W, HI Modified Sine Wave InV Off-Grid Solar Power system FG-SPS300/600W * Grid hybrid design optional * Output: 300W or ... top or mount on wall Features of the system* Battery based OFF-GRID solar system, * used for home or office* MPPT charge controller ... *120WPThe other partsBreaker,Arrester,wire collector ,cables set. Off-Grid Solar Power system FG-SPS300/600W