... -fire and anti-aging metirial for the shellSpecifications:01, Solar Panel:2.8Wp 15~20years 02, Storage battery:4000mAh polymer-lithum battery ... 2~5years 03, Applicable lighting source: 5W LED Lamps More than 30000Hours 04 ... open area up to 6m/20Feet.(area=6*6**3.14=113Sqm)09 Control System Micro-computer intelligent controller More than ...