... 2.5" cob high quality led downlight 3w 230v 220v 1,Material:Aluminum,car/die-casting aluminum lamp ... which is low-light failure with high brightness as a light source,to ensure its long life,energy ... solution:the mains way of an overall heat sink,a single heat lamp beads column and external fan ... track light3,plus boom or wire rope used as a pendantTesting: At least 48-72 hoursCertificate:CE&RoHSAbout ...