Modular system luminaire Silica® 21 for surface, recessed or suspended mounting; as linear luminaire for single arrangement or continuous row mounting; high-quality powder-coated housing made of extruded aluminum profile with plastic end caps, available in silver, white and black; available with different innovative optics to solve a wide range of lighting tasks; the modular design enables simple and quick component replacement (control gear and LED modules); all components of the luminaire can be separated and disposed of at the end of its service life in a resource-saving manner office luminaire Silica® 21 for recessed in the ceiling in single arrangement - lighting technology: opal: opal diffuse cover with pleasant glare control for very large luminaire distances, direct symmetric extremely wide distribution, UGR ≤ 22 - luminous flux: 2400lm - colour temperature: 2700..6500K - colour rendering: CRI > 80 - light colour: 8tw - system power: 21,5W - luminous efficacy: 111,6lm/W - control: DALI DT8 - mains connection: 220..240V AC 50/60Hz - certification: CE - protection rating: IP20 - insulation class: insulation class I (protective earthing) - dimension (LxWxH): 1228 x 79 x 53mm - housing colour: traffic white (RAL 9016) manufacture: Siteco type: 51MX10TAT2W