... 4500lux 3.lighting time 20h 4.5Ah LI ION battery miner light 5.CE certificate miner lamp led cap lamp ... /CNT209Packing sizecm36*22*45Usage:It is suitable for mineral industry,tunnel projects,construction and maintenance for power,communication,highway, ... in weight, free maintenance, explosion prevention, waterproof, long life4. Lighting time : more than 20 working hours, double light source design5 ...