... PARAMETERS: Product ModelWSI0303-12-1N01Rated Solar Power300WFloating Charge Voltage14.5VRated Output Capacity300VARated Battery Voltage12VDCOver Voltage Shutoff17VDCOver Voltage ... over charge,, battery over discharge, reserve connection , output over load protection, short circuit protection , over temperature ... .Product details:Factory:Certificates: 300W 12V solar controller with inverter ac