OPTIX LINEAR SURFACE 1200 LUMI HCL TW 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 DT8 controlled tunable white light engine. 2700-6200K Tunable White LED, chromaticity tolerance of 3-step MacAdam ellipse. For 2700K - Colour rendering index Ra >98; Melanopic Ratio MEER: 0.527; Fidelity Index Rᶠ: 97; Gamut Index Rᶢ: 102. For 4000K - Colour rendering index Ra >95; Melanopic Ratio MEER: 0.827; Fidelity Index Rᶠ: 95; Gamut Index Rᶢ: 101. For 6200K - Colour rendering index Ra >98; Melanopic Ratio MEER: 1.087; Fidelity Index Rᶠ: 96; Gamut Index Rᶢ: 99. For 4000K luminous flux: 2225lm. Power consumption: 26W. Luminaire efficacy: 86lm/W. UGR<16 Luminance at 65°<200 Cd/m2, IK07, IP20. Photobiological safety risk group 0. Electrical protection Class I. Glow wire test 850°C. 68,000hrs L80B20 lifespan.