Indoor luminaire. Assembly: mounted in suspended ceiling. The body material is steel sheet. Colour - RAL 9016 (white). Dimensions: 650 x 650 x 55-75 mm. Mounting hole: 616 x 616 mm. Diffuser: Micro-PRM SH (micro-prismatic diffuser PMMA with hardened glass). The efficiency of the optical system is 73,30%. Beam angle: (C0-C180) / (C90-C270) - 89° / 89°. Light source type: LED. Colour of the light 3000 K. SDCM=3. CRI>80. Lifetime of LED sources: 100000 h L80/B10. Luminaire luminous flux: 8227 lm. Power of luminaire: 59,6 W. Luminaire's light efficiency: 138 lm/W. Driver: standard on/off (E). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: >0,95. Circuit load capacity: 12 (B10), 19 (B16), 19 (C10), 30 (C16). Operating temperature range: 5 ÷ 30° C. Protection degree: IP65. Impact resistant: IK08. Protection against electric shock: I. Photobiological risk class (IEC/EN 62471): RG0.