... diamond cup 2.5" cob high quality led downlight 3w 230v 220v 1,Material:Aluminum,car/die-casting aluminum lamp body,the surface oxidation ... and we will arrange to deliver the items Advantages: 1,high-quality aluminum housing,and better heat dissipation,light decay less,live longer2 ... of an overall heat sink,a single heat lamp beads column and external fan cooling method 2,see the power supply ...