Indoor luminaire. Assembly: mounted in module ceilings. The body material is steel sheet. Colour - white. Luminaire dimensions: 596 x 596 x 100 mm. Weight 5,4 kg. Diffuser: PLX (PMMA opal). The efficiency of the optical system is 77,06%. Beam angle: (C0-C180) / (C90-C270) - 103,6° / 103,2°. Light source type: LED. Colour of the light 4000 K. SDCM=4. CRI>80. Lifetime of LED sources: 54000 h L80/B10. Luminaire luminous flux: 4321 lm. Power of luminaire: 33,2 W. Luminaire's light efficiency: 130,2 lm/W. Driver: standard on/off (E). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: >0,95. Circuit load capacity: 22 (B10), 34 (B16), 33 (C10), 54 (C16). Operating temperature range: 5 ÷ 30° C. Protection degree: IP20/44. Impact resistant: IK04. Protection against electric shock: I. The luminaire can be made in CLO (Constant Lumen Output) version.