... 2) More brightness 3) Clean energy 4) Automatic light 5) Save energy 1) Body material: Aluminium 2) LED ... 4 W, Using high light & long-lived LED light source (over 30,000 hrs life span), 3) Solar panel: 2.1W ... Charging up powder current: 10-500 mAh, depends on weather 6) Nickel battery used: AA1.8V, 1500 mAh, 7) ... 2 days for cloudy weather, 9) Working time: 6-8 hours a day, can work 2-3 days in ...