Indoor luminaire. Assembly: directly mounted to ceiling construction or surface mounted on slings. The body material is aluminum. Colour - RAL 9005 (black). Luminaire dimensions: 465 x 201 x 150 mm. Weight 5,4 kg. Diffuser: SH (transparent hardened glass). The efficiency of the optical system is 84,94%. Beam angle: (C0-C180) / (C90-C270) - 57,6° / 56,2°. Light source type: LED. Colour of the light 5000 K. SDCM=3. CRI>80. Lifetime of LED sources: 83000 h L90/B10. Luminaire luminous flux: 21416 lm. Power of luminaire: 138 W. Luminaire's light efficiency: 155,2 lm/W. Driver: standard on/off (E). Voltage 220..240 V, 50..60 Hz. Power factor cosφ: >0,95. Circuit load capacity: 14 (B10), 22 (B16), 14 (C10), 22 (C16). Operating temperature range: -25 ÷ 40° C. Protection degree: IP65. Impact resistant: IK08. Protection against electric shock: I. In the standard version, the luminaire is made with a 1 meter long cable. Optional IP65 connectors are available. It is possible to make IK10 version with PC-T polycarbonate diffuser.