... Rated voltage: 3.2V Rated current: 180mA for primary light source, 60mA for auxiliary light source. Iron Lithium phosphate has the ... ,long visual distance,Apolicable to all kinds of mines and coal mines .oil ,chemicals ,warehouse,road transport ,and other ... in flammable and explosive environment ,Can also be used for electricity,railways ,tunnels,exploration, and other fields. led mining lamp