Material : Iron and Aluminum, Polycrystalline silicon solar panel

Size: 200mm X 960mm

Battery watt: 2W

Solar panel life: 20 years

Battery life: 3 years , can be replace then

 Battery:  Rechargeable battery

Working hours: 3-5 working days without any new power supply , that is 24-40 hours when it is cloudy or rainy,