645W Hi-MO X10 Double Glass Bifacial HPBC 72 Cell Silver Frame MC4-EVO2

The LONGi Hi-MO X10 Double Glass Bifacial LR7-72HVD-645M is a 645W bifacial solar panel engineered for high-performance residential and commercial installations. Built on N-type hybrid passivated back-contact (HPBC) cell technology, the panel achieves 23.9% module efficiency with 144 half-cut monocrystalline cells in a 6×24 configuration. The larger 2382×1134mm format weighs 33.5kg and features dual-glass construction with 2.0mm semi-tempered front and rear glass in a silver anodised aluminium frame. The bifaciality factor of 70% enables the rear surface to generate additional yield from reflected and ground-scattered light on compatible roof or ground-mounted installations. Standard test conditions deliver an open-circuit voltage of 53.70V and short-circuit current of 15.17A. Maximum system voltage is 1500V DC with an operating range of -40 to +85°C. First-year power loss remains below 1%, declining to 0.35% annually. An IP68 junction box with three bypass diodes provides electrical safety. The panel carries a 15-year materials and workmanship warranty plus a 30-year linear power output warranty.