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A Grade Highest Efficiency 340W Poly 72cells Solar Panel. High Efficiency 22%: Achieves up to 22% module efficiency for maximum power generation. 25-Year Warranty: Comprehensive 25-year warranty coverage for long-term reliability. OEM Customization: Accepts OEM services including logo printing and custom packaging. Certified Quality: Certified by EST, ISO, CE, and TUV for international standards. Fast Delivery: Quick delivery time of 7 days for standard orders. Professional Support: Offers OEM and on-site installation assistance for clients.