640-660W 132Cell 210mm Mono PERC MBB Half Cut Technology Solar Panel, Sunpal HiMAX6 132 Cell Series Solar Panel Power Range 640W 645W 650W 655W 660W. This advanced MBB solar panel utilizes cutting-edge technologies to deliver exceptional efficiency and power output. The 210mm large-size silicon wafers and half-cut cell design contribute to increased efficiency and reduced internal resistance, resulting in higher energy generation. Additionally, the Multi-Busbar (MBB) technology enhances light capture and reduces shading losses, further boosting the panel's performance. The Mono PERC (Passivated Emitter and Rear Contact) cell technology ensures superior light absorption and conversion efficiency. This combination of advanced features enables the panel to achieve an impressive efficiency of up to 21.4%, making it ideal for maximizing energy production in residential, commercial, and utility-scale solar installations. Furthermore, the panel boasts excellent durability and weather resistance, ensuring reliable performance over its long lifespan.