• JA Solar Branded JAM72S30 550W/MR Mono Crystalline Half Cell Solar Panel • Leading Manufacturers In The World Photovoltaic Industry • 11-Busbar Half-Cut PERC Cell Design Deep Blue Ver 3.0 Technology • Number of Cells 144 (6×24) • Peak Power Watts 550W • Maximum System Voltage 1500V DC (IEC) • Anodized Aluminium Alloy Frame • Module Efficiency: 21.3% • Junction Box: IP68 and 3 Bypass Diodes • Open Circuit Voltage(Voc) [V]: 49.90V • Connector: MC4 • Lifespan Up To 25 Years • Dimension 2279 X 1134 X 35mm • Weight 29.9kg