... cup 2.5" cob high quality led downlight 3w 230v 220v 1,Material:Aluminum,car/die-casting aluminum lamp body,the surface oxidation 2,Light source:all use high power LED which ... deliver the items Advantages: 1,high-quality aluminum housing,and better heat dissipation,light decay less,live longer2,Brand LED cold light source,no radiation,no heavy ...