Round recessed trimless downlight made of die-cast aluminium; LED Power 6W; measurement Ø37mm; trimless mounting with a cutout of Ø51mm; luminaire's height is 84mm; Ceiling Thickness 9.5-15mm; 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; beam characteristic with 38° beam angle; lighting perfectly suitable for reading, writing as well as computer and control work with UGR<19; degree of housing protection IP54 on the visible part of the product one installed; light source replaceable by a qualified electrician; driver replaceable by a qualified electrician