Features: High Conversion Efficiency: Our solar panel kit features a 20W monocrystalline solar panel with an impressive 22% conversion rate, ensuring maximum power generation even in low light conditions. Experience enhanced energy efficiency for your home or RV solar panel system. Advanced Protection Features: Designed with IP64 waterproof rating and equipped with short circuit protection, open circuit protection, reverse connection protection, overload protection, and dual MOS reverse current protection. This solar kit guarantees safe and reliable operation, protecting both the solar panels and your devices. Versatile Applications: Ideal for various outdoor charging needs, our RV solar panel kit can be used for automotive, yacht, boat, house, garden, shed, or farm battery charging. It provides a convenient and eco-friendly solution for all your power needs on the go. Complete Package: This solar panel system comes with a 12V battery panel controller featuring adjustable PWM control, 2 alligator clips, 4 suction cups, and 1 car charger. With everything included, setting up and using this solar kit is a breeze. Efficient and Sustainable: Harness the power of the sun with our high-quality solar panels. Reduce your carbon footprint and save on electricity bills by utilizing this solar panel kit for homes. Embrace a greener lifestyle and enjoy the benefits of renewable energy. Specification: Product material: High-efficiency monocrystalline silicon board Product size: 280 x 280 x 3mm / 11.02 x 11.02 x 0.12in (solar panel), 133.5 x 70mm / 5.26 x 2.76in (controller) Solar panel: Power: 40W (actual - 20W) Open circuit voltage: 18V Short circuit current: 2A Output voltage: DC18V/12V, USB5V Waterproof grade: IP64 Conversion rate: 22% Application: Suitable for cycling, mountaineering, hiking, camping, tourism, etc. Controller: Voltage: 12V USB voltage: 5V2A Standby current: 10mA No load voltage: 20.8V DC Short circuit current: 1800mA Output current: 1500mA (maximum) Working temperature: -40°C - 85°C / -104°F - 185°F Controller current: 10A/20A/30A/40A/50A/60A/100A (Optional) Packing List: 1 x Solar Panel 1 x Battery Clip 1 x Cigarette Lighter 4 x Suction Cups 1 x Controller 1 x Manual