Enerdrive 2 x 200W Fixed Solar Panel, Twin Pack 1580 x 800 x 40 mm Enerdrives 200W Fixed Solar Panels are 43+VDC open circuit and are well suited to 12/24v installations (or 48v by series connections of panels). PLEASE NOTE: SP-EN200W-24 are suitable for Charging 24V Battery System when using a PWM Solar Controller. For Charging a 12V Battery System a MPPT Solar Controller MUST be used. A fly lead cable is provided for easy connection of the 10 & 20w panels while the larger panels have MC4 compatible solar cable connectors included. Some Basic Tips: Keep your panel in direct sunlight as much as possible Secure your Folding Solar Kit from theft around your work or campsite Protect and store your portable folding kit in the most secure place you can to prevent accidental breakage Specifications: Max Power Pm(W) 200 Power Tolerance -1% ~ + 3% Max Power Voltage Vm(V) 37.26 Max Power Current Im(A) 5.37 Open Circuit Voltage Voc(V) 43.7 Short Circuit Current Isc(A) 6.17 Max System Voltage (VDC) 1000 Weight (kg) 15.30 Test Conditions 1000W/m² , AM1.5 , 25°C Note: the SP-EN40W and SP-EN200W are suitable for Charging 24V Battery System when using a PWM Controller. For Charging a 12V Battery System a MPPT Solar Controller MUST be used.