... operate 12-15Hrs by battery 4,with controller solar fan1, 12V, or 100V-240V voltage 2, Power:22W3, 3 ... speed settings 4,With remote control5, 1.25-1 ... ,Dimensions :632*550*30mm 3,Weight:4kg 4,Maximum Power Voltage:17.2vmp 5,Maximum Power Curren:2.32imp ... -circuit Current[Isc]:2.54 8,Maximum System Voltage:1000VDC 9,Number of Cells:36Battery1,Battery:12V, ...