1,Material:Lathed aluminium base 2,TransparentPC cover,silicon rubber obtrurating ring 3Dimension: ... light efficiency and lifespan of led2, high-purity lathed aluminium, surface treated with electrostatic spraying , shock resistance and anti-corrosion,attractive ... heat sink ensures superior heat dissipation. 5,Aluminium reflector of high purity with anodizing treatment to enhance utilization ratio of ...