OPTIX LINEAR SURFACE 1200 LUMI 4000K ALU DALI is a surface mounted linear luminaire for office and education applications with Aluminised plastic extra low glare optics and RAL9016 colour fixture body. DALI dimmable. 4000K Neutral White LED, chromaticity tolerance of 3-step MacAdam ellipse. For 4000K - Colour rendering index Ra >98; Melanopic Ratio MEER: 0.778; Fidelity Index Rᶠ: 94; Gamut Index Rᶢ: 98. For 4000K luminous flux: 2850lm. Power consumption: 30W. Luminaire efficacy: 95lm/W. UGR<19 Luminance at 65°<200 Cd/m2, IK07, IP20. Photobiological safety risk group 0. Electrical protection Class I. Glow wire test 850°C. 60,000hrs L80B20 lifespan.