Luminaire type
Recessed LED luminaire with microprismatic cover. Version M84 (625 mm x 625 mm).

Applications
Offices, corridors, foyers, conference rooms, retail areas, waiting zones.

Mounting methods
For system ceilings with exposed grids. The luminaire is also suitable for applications in plasterboard ceilings with an accessory ordered separately (Siella ZBB/4). Further information and data regarding luminaire installation and fixing can be found in the installation instructions.

Optical system
The prismatic PMMA surface of the optical system has a glare-reducing effect, with narrow-wide light distribution. Glare evaluation according to UGR rating (EN 12464-1) < 19. Suitable for VDU workstations according to EN 12464-1 via limited luminance L ≤ 3000 cd/m² for beam angle above 65° all-round. Harmonious light effect due to homogeneously illuminated light emission.

LED system
Luminaire luminous flux 4000 lm, connected load 33.00 W, power factor λ > 0.95, luminous efficiency of luminaire 121 lm/W. Light colour neutral white, correlated colour temperature (CCT) 4000 K, general colour rendering index (CRI) Ra > 80. Colour locus tolerance (initial MacAdam) ≤ 4 SDCM, mean rated service life L80(tq 25 °C) = 50,000 h. The light source is replaceable according to the ecodesign requirements (VO (EU) 2019/2020).

Luminaire body
Frame made of aluminium, rear luminaire body made of sheet steel. Surface coated white (RAL 9016). Dimensions (L x W): 620 mm x 620 mm, luminaire height 35.5 mm. Safety class (EN 61140): I, protection rating (DIN EN 60529): IP20, impact resistance level in accordance with IEC 62262: IK03, testing temperature of wire glow test in accordance with IEC 60695-2-11: 650 °C. Weight: 1.1 kg.