This is a perfect green tech product with 15+ years of life expectancy for battery, galvanized steel pole and bulb.  It works when the sun is not on for 5 days. It holds charge and comes on and off at dawn and dusk.  

Easy to install. Requires little or no maintenance. Durable and weather resistant, elegant, ergonomic design.   
Key Specifications/Special Features:
Specification: 

    Solar panel: 110Wp 17.5V, high efficiency monocrystalline PV module
    Light source: DC 12V, 28W, LED street lamp, Bridgelux 45nil LED chips, 110lm/W
    Controller: 10A-12V, light/time intelligent control, PWM mode, waterproof, IP66 guard level, various protections
    Battery: 1*12V-100Ah, lead-acid battery, fully sealed deep cycle free maintenance type
    Battery box: PVC material, underground-buried type, waterproof and heat-dissipative, including PVC cable tube
    Working time: 10 hours/day (full power lighting), battery capacity providing 3 continuous days backup in cloudy or rain

Best Seller!