1.Material:ABS & plastic 2.Battery:3*DD 3.Size:180*90mm 4.Functiuon:adjust brightness. 1.Material:ABS & plastic2.Battery:3*DDFunctiuon:adjust brightness. 4.Runtime:Over 10hours5.Portable for easy carry,long lighting time for camping,trekking,hikeing,emergency6.Package:colour box 18 LED lamp camping