Technical Data-System : 30W Solar LED Street Lighting System 8M Pole Height 30W LED lamp 11-12Hrs 3-4 Lighting time/night, Back up 3-4 continuous rainy or cloudy days, Working temperature: -30℃-65℃. Solar Panel: Lifespan:20-25 years 120W for 12V Lighting, 17% Efficiency, Poly Crystalline Silicon. Adding Aluminum Frame, Tempered Glass. Gelled Battery Lifespan:5-8 years, 120Ah/12V, Sealed Type, ...