The LR7-72HVD-640M from Longi is a Solar Module suitable for industrial and commercial cement roofs and high-temperature scenarios. It delivers a maximum power output of 640 W with a module efficiency of 23.7%. This solar module is equipped with 144 cells and features TaiRay wafer and BC technology with an anodised aluminium alloy frame for optimum power generation performance. It supports a maximum system voltage of 1500 V, with a power tolerance of 0-3%, and excels in harsh conditions. This solar module weighs 33.5 kg and measures 2382 x 1134 x 30 mm.