Indoor luminaire. Assembly: surface mounted on ceiling. The body material is aluminum. Colour - RAL 9010 (white). Dimensions: 1140 x 47 x 109 mm. Diffuser: PC (opalescent polycarbonate). The efficiency of the optical system is 78,38%. Beam angle: (C0-C180) / (C90-C270) - 141,4° / 86,8°. Light source type: LED. Colour temperature - yellow colour (dominant wavelength λp=592 nm). SDCM=3. Lifetime of LED sources: 60000 h L80/B10. Luminaire luminous flux: 1780 lm. Power of luminaire: 25,1 W. Luminaire's light efficiency: 70,9 lm/W. Driver: standard on/off (E). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: 0,95. Circuit load capacity: 25 (B10), 40 (B16), 39 (C10), 62 (C16). Operating temperature range: 5 ÷ 30° C. Protection degree: IP44. Impact resistant: IK04. Protection against electric shock: I. Photobiological risk class (IEC/EN 62471): RG0. The luminaire can be made in CLO (Constant Lumen Output) version.