1High Efficiency: Solar panel can efficiently convert solar energy, has high charging efficiency, and achieves optimal charging in a limited space. 2Long Lifespan: The panel is made of highly efficient monocrystalline silicon, which generates more electricity in full sunlight, prevents weathering and wear, and has a long service life. 3Stable Suction Cup: The kit includes 4pcs suction cups, which can play a better fixing role to prevent outdoor solar panel from loosening and falling. 4Security Protection: The panel provides multiple protection, such as overcharge protection, overdischarge protection, short circuit protection, overload protection, reverse connection protection, etc. 5Wide Application: Widely used in batteries for motorcycles, boat, tractor, trailer, truck, Rv etc. Also be used for gate openers, electric fences, chicken coops, sheds, mobile phone, power bank,and lights.