Excellent performance: The 300W solar panel kit uses 21% high-efficiency monocrystalline silicon solar cells, providing reliable performance even in low light conditions. Convenient and portable: Lightweight and easy to carry. High conversion efficiency, high output stability, and strong durability. Designed for easy installation with pre-drilled holes on the back for secure mounting. Charge controller: Includes a 10A-60A 12V solar charge controller with smart multi-function features and an advanced LCD display. It monitors battery voltage and current in real time and continuously optimizes charging efficiency. Durable aluminum frame: Features a sturdy aluminum frame and non-reflective tempered glass, suitable for various weather conditions. The waterproof junction box on the back ensures safe operation and protection against moisture.