Comprehensive 4000W Off-Grid Solar Panel Kit devised for RVs and home backup, includes an 18W waterproof solar panel and a 30A charge controller for reliable power solutions. High-efficiency 18W solar panel features monocrystalline cells with a conversion rate of up to 15%, ensuring maximum production to meet your off-grid needs. Durable construction with low-iron tempered glass and erosion-resistant aluminum frame, built to withstand harsh outdoor conditions and provide reliable performance for over a decade. Versatile 30A solar charge controller equipped with dual 5V/2.1A ports, allowing you to charge mobile devices while intelligently managing for extended life. Lightweight and portable devise, perfect for outdoor adventures, camping, and emergency power backup, making it an essential addition to your solar toolkit., Manufacturer: YUXVBTZXD