... Solar Cell Test MachineEquipment PerformanceDigital Control: Compared with the traditional analog control, digital control has improved test accuracy and flexibility. Key ... Current Measurements: Unlike other manufactures plus-fixed-voltage mode, we use gradual-increase-voltage mode to gain truly reverse test characteristic curve ... Voc, Pmax, Vm, Im, FF, EFF, Temp, Rs, Rsh. Solar panel assembly machine