Perc Type All Black 450W Half Cut Monocrystalline Panel Module No. JC450-120M Cells Type 182x91mm No. of Cells 144 pcs (6x24) Panel Efficiency: 21.24% Panel Dimenstion (LxWxT) 1910x1134x35mm  Weight 24kg Packing 31pcs/pallet,744pcs/40HQ