20 Watt 12 Volt Solar Panel Kit Monocrystalline Solar Panel + 40A PWM Charge Controller + Battery Clips 22% High-Efficiency for RV Boats Trailer Off-Grid System Features: 【High Conversion Efficiency】: Our solar panel kit features a 20W monocrystalline solar panel with an impressive 22% conversion rate, ensuring generation even in low light conditions. Experience enhanced energy efficiency for your home or RV solar panel system. 【Advanced Features】: Designed with IP64 waterproof rating and equipped with short circuit , open circuit , reverse connection , overload , and dual MOS reverse current . 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 Cycle, 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