310W Polycrystalline Silicon Solar Panel with Aluminium Frame N-Type Perc for Technology 19% Efficiency. High Efficiency: 19% module efficiency with N-Type Perc technology for superior power generation. Durable Construction: Aluminum alloy frame and polycrystalline silicon cells ensure long-term stability. Flexible Customization: Supports OEM/ODM, full customization, and minor customization options. Low MOQ: Minimum order quantity is just 1 PCS, suitable for small-scale testing. Fast Response: Quotation provided within 24 hours to ensure efficient business communication. Reliable Warranty: Comes with a 10-year warranty for peace of mind and quality assurance. Multiple Payment: Accepts T/T, PayPal, Western Union, and Trade Assurance for secure transactions. Global Shipping: Flexible shipping via sea, air, or express (DHL, UPS, FedEx) from Shenzhen.