Maximum power (wp): 280w Maximum power voltage (v):54.2 Maximum power current (a)5.17 Open circuit voltage (v):66.08 Short circuit current (a):5.83 Number of cells (pcs): 112(8*14) Size of module (mm):1830*1070*50 Weight per piece (kg):23 Length of cables (mm): 900 Frame (material, corners, etc.):anodized aluminum alloy Iso, ce, tuv