Surface mounted linear LED luminaire, designed for general illumination in clean & dry areas with laminar airflow. Opal PMMA diffuser in specific aerodynamic form, linear ribs inside for visual comfort and a smooth outer surface for easy cleaning. Tool-free removable diffuser without removing end caps. Luminaire of extruded aluminium. Finish: anodization in natural aluminium colour. Other colours are available upon request. Tool-free LED light engine replacement. Total lighting fitting power: 25.0W. Light color temperature 4000 K with color reproduction index of (CRI) >80. Led working life is 72000 hours, with condition that flux doesn't go below 80% of initial flux (L80B10). Initial lighting fitting flux is 4030lm. Lighting fitting efficiency not below 161lm/W. Light color deviation (SDCM) less than 3. Lighting fitting dimensions 1140/46/140 A/B/H[mm]. Mechanical protection degree IP54. Lighting fitting is serviceable, as the LEDs and drivers of the fitting are replaceable by ZHAGA standard. Manufacturer has valid certificates: ISO 9001:2015, ISO 27001:2013, ISO 14001:2015, ISO 45001:2018, ISO 50001:2011. Lighting fitting type STREAM TEARDROP 1200/840 HE, manufacturer Buck.