Product Specification/Models Maximum power(Pmax): 50W Open circuit voltage (Voc): 22.40V Short-circuit current (Isc): 3.07A Maximum voltage (Vmp): 17.60V Maximum current(Imp): 2.84A Power output tolerance: +/- 3% Solar Cell: 125 Mono Number of Cell (PCS): 4*9 (36) Size of Module (mm): 691*545*35mm Weight Per piece (KG):4.60Kg