Indoor luminaire. Assembly: mounted in suspended ceiling. The body material is aluminum. Colour - RAL 9010 (white). Dimensions: Ø151 x 125 mm. Mounting hole: Ø143 mm. Diffuser: hardened transparent glass. The efficiency of the optical system is 83,47%. Beam angle: (C0-C180) / (C90-C270) - 22,4° / 22,4°. Light source type: LED. Colour of the light 4000 K. SDCM=3. CRI>80. Lifetime of LED sources: 89000 (1) / 100000 (2) h L90/B10 (1) / L80/B10 (2). Luminaire luminous flux: 2594,1 lm. Power of luminaire: 18,4 W. Luminaire's light efficiency: 141 lm/W. Driver: standard on/off (E). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: >0,95. Circuit load capacity: 29 (B10), 47 (B16), 49 (C10), 79 (C16). Operating temperature range: 5 ÷ 35° C. Protection degree: IP20/44. Impact resistant: IK04. Protection against electric shock: II. Photobiological risk class (IEC/EN 62471): RG0. The luminaire can be made in CLO (Constant Lumen Output) version.