Perc Type All Black 550W Half Cut Monocrystalline Panel Module No. JC550-144M Cells Type 182x91mm No. of Cells 144 (6x24)  Panel Efficiency: 20.8% Panel Dimenstion (LxWxT) 2279x1134x35mm Weight 29kg Packing 31pcs/pallet,620pcs/40HQ