Usage Tips:[Excellent performance] The 300w solar panel kit uses 21% high-efficiency monocrystalline silicon solar cells, which can provide good performance even in low light conditions.[Convenient and portable] Light weight, easy to carry.High conversion rate, high yield.High stability and good durability.strong applicability.Easy to install with pre-drilled holes on the back of panel for fast mounting and securing.[Charge Controller] Equipped with 10A-60A 12V voltage solar charge controller, home solar kit smart multi-function, advanced LCD display. It senses and reflects the battery panel voltage and current in real time, and continuously tracks the energy efficiency of battery charging.[Durable aluminum frame] The solar panel is composed of a sturdy aluminum frame and non-reflective tempered glass, which can work in various weather conditions. The junction box on the back is waterproof, allowing you to use it more safely without worrying about leakage.