Maximum power (wp): 210w220w Maximum power voltage (v):4442.5 Maximum power current (a)4.775.17 Open circuit voltage (v):51.745 Short circuit current (a):5.495.6 Number of cells (pcs): 91(7*13)91(7*13) Size of module (mm):1702*945*451702*945*45 Weight per piece (kg):1819 Length of cables (mm): 900900 Frame (material, corners, etc.):anodized aluminum alloyanodized aluminum alloy Iso, ce