... and light, energy saving, maintenance free, longer working time safe design, long battery life Main technical parameters: NoItemUnitData1Rated ... illuminance at 1mBegin lightingLx1600Lighting 11hLx10006Weight g4507Nos of battery cycle times≥5008Carton packing roll/CNT209Packing size ... for mineral industry,tunnel projects,construction and maintenance for power,communication,highway,railway at night ...