... 98mm dia:100mm 3.Accessories Include:Die casting,Heatsink,PC cover,Screws,Buckle and Spring 2013 Supply Aluminum 3'' 4'' 5'' ... ,Heatsink,PC cover,Screws,Buckle and SpringUsageIndoor use 2013 Supply Aluminum 3'' 4'' 5'' 6'' 8'' LED Downlight housingShapeRoundTrade terms ... shade housing outsize:3inch dia:100mm,cut hole size:98mm2.Accessories include: Die casting,Heatsink,PC cover,Screws,Buckle and ...