Round recessed downlight made of die-cast aluminium; System Power 8.5W; measurements Ø65mm x 74mm; ceiling cutout of Ø55mm with a narrow mounting trim; ceiling thickness 5-20mm; rotation 355° and pivot max. 30°; high color rendering at an index of CRI90; after a lifetime of 50000h L80B10 min. 80% of the luminous flux with energy efficient CITIZEN LED Chips; 5 years warranty; lighting perfectly suitable for reading, writing as well as computer and control work with UGR<19; degree of housing protection IP20 (LED Module IP54); light source replaceable by a qualified electrician; driver replaceable by a qualified electrician