Astronergy 455W Mono 166Cell Solar Panel – Power Output 445W to 455W, Monocrystalline Cell Type, 166 Cells, Half-cut cell technology for improved shading tolerance, Enhanced module efficiency with SUPER PERC+ technology, Dimensions approximately 2094 mm x 1038 mm x 35 mm, Weight around 21 kg, Maximum System Voltage 1500 VDC.