... DescriptionSpecification: Main Material: High steel (with hot galvanized and paint finish, waterproof, never rust) Height: 3.8M ... Poly/Mono crystalline Battery: 12V/65AH, Maintenance free Controller: Intelligent solar charge controller Input Voltage: 12V Working Time: 10-12 ... kits Advantages: 1)100% solar powered, No wiring, Easy installation, save money, energy and human resources, Maintenance free, ...