ILLUMINOTECHNICAL Luminous efficiency 100% (DLOR 79%, ULOR 21%). Initial luminous flux of the luminaire 5849 lm. Symmetric direct-indirect distribution. Installation Interdistance Transv.D = 1.65 x hu - Long.D = 1.26 x hu. Average luminance <3000 cd/m² for radial angles >65°. Tabular UGR (CIE 117 - 4H-8H; S=0.25H; 70/50/20): RUG 16.3 - 17.4. Beam angle: 89° - 96°. Luminous efficacy 101 lm/W. Lifetime (L93/B10): 30000 h. (tq+25°C) Lifetime (L90/B10): 50000 h. (tq+25°C) Lifetime (L85/B10): 80000 h. (tq+25°C) Lifetime (L80/B10): 100000 h. (tq+25°C) Sudden decreased luminous flux after 50000 hours: 0% (C0). Photobiological safety in compliance with IEC/TR 62778: RG0 risk exempt, (IEC 62471). In compliance with IEC/EN 62722-2-1 - IEC/EN 62717 standards. SOURCE One 40W/840 linear LED module for direct lighting + one 8W/840 linear LED module for indirect lighting. Energy efficiency class (UE 2019/2020 - UE 2019/2015): D, E. CIE 13.3 Colour rendering index: CRI >80 (R9 <50%). IES TM-30 Fidelity Index: Rf = 84 Rg = 95. CCT nominal colour temperature 4000 K. Colour initial tolerance (MacAdam): SDCM 3. MECHANICAL Housing in white painted extruded aluminium. Methacrylate (PMMA) primary lens for total source shielding. Highly aesthetic external lens in transparent methacrylate (PMMA) for optimizing light distribution. Flat transparent prismatic methacrylate (PMMA) filter, multi-lenticular exterior, anti-glare. Upper film in translucent polycarbonate, self-extinguishing, UV stabilised. White painted aluminium end caps. Luminaire with limited surface temperature. - D - (EN 60598-2-24) Dimensions: 1480x112 mm, height 91 mm. Weight 5.95 kg. IP40 protection degree. Mechanical strength to impacts IK06 (1 joule). Glow-wire test resistance 650°C. ELECTRICAL Halogen Free electronic wiring 230V-50/60Hz, power factor 0.95, THD <25%, constant output current, SELV, class I, 2 driver. Power of the luminaire 58 W. CE - IEC 60598-1 - EN 60598-1. SAFE FLICKER: PstLM=<1 and SVM=<0.4 (IEC TR 61547-1 and IEC TR 63158), to ensure a more comfortable and safe light. Luminaire compliant with EN 60598-2-22 for power supply from a centralised emergency system CPSS (Central Power Supply System), not incorporated in the luminaire - high risk areas excluded. The default power and flux are 100% in AC and 100% in DC. Ambient temperature from 0°C to +25°C. Temperature class T6 max 85°C. Relative humidity UR: <85%. INSTALLATION Suspended. SUPPLIED Suspensions with chrome bosses and quick adjusters, 2 m galvanised steel cable. Transparent 2.3 m 3x0.75 mm² power cable with white power supply case for mounting on the ceiling. APPLICATIONS Environments involving accurate visual tasks where a diffused and soft light for an optimum visual comfort and the source total shielding are required. In environments with VDTs, managerial offices and staterooms. WARNING Luminaire designed for disposal/recycling at end-of-life. Replaceable (LED only) light source by a professional. Replaceable control gear by a professional.