Indoor luminaire. Assembly: mounted in module ceilings, as well as plasterboard ceilings. The body material is aluminum. Colour - RAL 9005 (black). Dimensions: Ø168 x 80 mm. Mounting hole: Ø150 mm. Diffuser: PLX (PMMA opal). The efficiency of the optical system is 75,00%. Beam angle: (C0-C180) / (C90-C270) - 91,8° / 92,2°. Light source type: LED. Colour of the light 4000 K. SDCM=3. CRI>90. Lifetime of LED sources: 100000 h L80/B10. Luminaire luminous flux: 4377 lm. Power of luminaire: 34,1 W. Luminaire's light efficiency: 128,4 lm/W. Driver: standard on/off (E). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: >0,95. Circuit load capacity: 29 (B10), 46 (B16), 46 (C10), 74 (C16). Operating temperature range: 5 ÷ 35° C. Protection degree: IP20/54. Impact resistant: IK04. Protection against electric shock: II. Photobiological risk class (IEC/EN 62471): RG0.