4W Solar Panel 5W 8W 10W 15W Small Watt Solar Cell Panel

4W Solar Panel 5W 8W 10W 15W Small Watt Solar Cell Panel. 20-Year Power Warranty: Guarantees power output remains above 90% for over 10 years with a 20-year warranty period. High Efficiency Cell: Features 36pcs monocrystalline silicon cells with 22.8% efficiency and low iron tempered glass. Custom Design Service: Professional team provides custom size, shape, wattage, and logo design services for unique projects. OEM/ODM Acceptable: China Solar Ltd offers OEM services to save time and cost, with customizable current and voltage. Versatile Applications: Ideal for lighting, billboards, agricultural irrigation, and charging small DC batteries or toys. Fast Sample Delivery: Samples are ready for delivery within 5-10 days after payment and file confirmation. Certified Quality: Products are ISO and CE certified, ensuring compliance with international quality standards.