Indoor luminaire. Assembly: surface mounted on ceiling. The body material is steel sheet. Colour - RAL 9016 (white). Dimensions: 620 x 620 x 56 mm. Diffuser: PLX (PMMA opal). The efficiency of the optical system is 75,22%. Beam angle: (C0-C180) / (C90-C270) - 109,6° / 109,6°. Light source type: LED. Colour of the light 4000 K. SDCM=3. CRI>80. Lifetime of LED sources: 60000 h L80/B10. Luminaire luminous flux: 4265 lm. Power of luminaire: 33,2 W. Luminaire's light efficiency: 128,5 lm/W. Driver: DIM DALI (EDD). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: >0,95. Circuit load capacity: 8 (B10), 13 (B16), 13 (C10), 21 (C16). Operating temperature range: 5 ÷ 30° C. Protection degree: IP44. Impact resistant: IK04. Protection against electric shock: I. The luminaire can be made in CLO (Constant Lumen Output) version.