Round recessed trimless downlight (Easy Installation) made of die-cast aluminium; System Power 42W; measurements Φ150(Aperture)x190mm; ceiling cutout of Φ150mm with a trimless mounting; ceiling thickness 1-35mm; CCT 3000K; 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 36° beam angle; lighting perfectly suitable for reading, writing as well as computer and control work with UGR<19; degree of housing protection IP54; light source replaceable by a qualified electrician; driver replaceable by a qualified electrician