LED semi-recessed luminaire with CDP microprismatic cover. With coloured light frame for individual, emotional lighting designs. With blue light frame. Can be universally used in cut-out recess openings and in system ceilings with concealed or exposed grids. Installation in system ceilings with asymmetric, concealed grids on request. For installing the Belviso C2 luminaire, a set of Belviso C2 ZBB mounting brackets is required, to be ordered separately. For system dimension 625 mm x 625 mm. Cut-out opening 610 x 610 mm. For ceiling cut-outs 610 mm x 610 mm, Recess depth ≥ 65 mm. With highly efficient CDP microprisms. Direct distribution. Glare evaluation (EN 12464-1) according to UGR < 19. VDU workstation-compliant in accordance with 12464-1. Completely harmonious light effect due to homogeneously illuminated light emission. Luminaire luminous flux 4000 lm, connected load 27,00 W, luminous efficiency of luminaire 148 lm/W. Light colour neutral white, correlated colour temperature (CCT) 4000 K, general colour rendering index (CRI) R a > 80. Mean rated service life L 80 (t q 25 °C) = 70,000 h, mean rated service life L 85 (t q 25 °C) = 50,000 h. Luminaire body sheet steel. Surface is solvent-free powder-coated white (RAL 9016). With all-round, exclusive light frame. Dimensions (L x W): 620 mm x 620 mm, luminaire height 72 mm.