Ys Solar 325W 60-Cell N-Type Polycrystalline Silicon Solar Panel 16.7% Efficiency 10-Year Warranty Aluminium Frame Black. High Efficiency Module: Achieves 16.7% to 17% module efficiency under standard testing conditions. Durable Aluminium Frame: Constructed with a robust aluminium frame for long-lasting structural integrity. Comprehensive Warranty: Backed by a 10-year warranty covering mechanical defects and performance. Flexible Customization: Offers full customization, minor customization, and customization from designs. Multiple Certification: Certified by ISO, CE, TUV, and IEC standards for quality and safety. Fast Response Time: Price quotes provided within 24 hours after receiving inquiries. Short Lead Time: Standard production lead time is generally 14 days based on quantity. Versatile Shipping: Available for shipping via sea, air, or express services like DHL and UPS.