Indoor luminaire. Assembly: mounted in module ceilings, plasterboard ceilings (using accessories) or surface mounted (using accessories). The body material is aluminum. Colour - RAL 9016 (white). Dimensions: 596 x 596 x 36 mm. Diffuser: PLX (PMMA opal). The efficiency of the optical system is 72,40%. Beam angle: (C0-C180) / (C90-C270) - 115,4° / 107,6°. Light source type: LED. Colour of the light 4000 K. SDCM=3. CRI>80. Lifetime of LED sources: 100000 (1) / 80000 (2) h L70/B10 (1) / L80/B10 (2). Luminaire luminous flux: 2519 lm. Power of luminaire: 21 W. Luminaire's light efficiency: 120 lm/W. Driver: DIM DALI (EDD). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: >0,95. Circuit load capacity: 33 (B10), 55 (B16), 42 (C10), 67 (C16). Operating temperature range: 5 ÷ 30° C. Protection degree: IP65. Impact resistant: IK04. Protection against electric shock: II. Photobiological risk class (IEC/EN 62471): RG0. The luminaire can be made in CLO (Constant Lumen Output) version.