High Efficiency 450W All Black IP67 Rated Aluminium Bifacial Half Cell for Solar Panel Monocrystalline Silicon Photovoltaic Solar Panel. High Efficiency Monocrystalline: 20.8% module efficiency with 182mm cells for superior power output. IP67 Rated Durability: All-black design with IP67 rating for excellent weather resistance. Bifacial Half Cell Design: Utilizes bifacial half-cell technology to maximize energy generation. Comprehensive Certifications: Certified by ISO, CE, TUV, IEC, and CQC for global safety standards. OEM/ODM Customization: Full customization, minor customization, and design-based options available. 10-Year Warranty: Includes a 10-year warranty for long-term reliability and peace of mind. Flexible Payment Terms: Accepts T/T, PayPal, Western Union, LC, D/P, and Trade Assurance. Fast Lead Time: Standard production lead time of 14 days based on order quantity.