4 pcs Renogy 100 Watt 12 Volt Monocrystalline Solar Panel Brand: Renology Solar Type: Solar Panels Solar Cell: Monocrystalline(4.92 x 4.92 in) Number of Cells: 36(4 x 9) Size/Dimensions: 47 X 21.3 X 1.4 In Weight: 16.5lbs (7.5 kg) Front Glass: Tempered Glass 0.13 in (3.2 mm) Frame: Anodized Aluminium Alloy