Indoor luminaire. Assembly: mounted in module ceilings. The body material is steel sheet. Colour - RAL 9016 (white). Luminaire dimensions: 595 x 595 x 35 mm. Diffuser: SH (transparent hardened glass). The efficiency of the optical system is 84,03%. Beam angle: (C0-C180) / (C90-C270) - 56,4° / 92,6°. Light source type: LED. Colour of the light 4000 K. SDCM=3. CRI>80. Lifetime of LED sources: 100000 (1) / 147000 (2) h L80/B10 (1) / L70/B50 (2). Luminaire luminous flux: 3299 lm. Power of luminaire: 21,7 W. Luminaire's light efficiency: 152 lm/W. Driver: standard on/off (E). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: >0,95. Circuit load capacity: 30 (B10), 48 (B16), 43 (C10), 70 (C16). Operating temperature range: 5 ÷ 30° C. Protection degree: IP65. Impact resistant: IK08. Protection against electric shock: I.