... " 18w cob led downlight 2)New,nice.high quality with diamond cup 3)Round,3w-18w 4)CE&RoHS;CCC 5 ... )Factory,2/3years warranty New diamond cup 6" cob high power 18w led downlight dimmable 1 ... ,then,from the size,weight of transformer to make the initial determination. 3,the brand and packaging about lamp beads: Quality ...