Light source LED: 2000-4800lm out. 3000/4000K, CRI 80 or 90. MacAdams 3. CCT-version: 4800lm out, 2700-6500K CRI 80. Lifetime LED: Up to 100.000h Ta25. Minimum 50 000h Max Ta. For precise technical information please see the data sheet on item level. (Use <Find your version> on right side) Driver HF or DALI. Driver life time up to 100.000 h/10 % (max failure) at Ta 25°C Body material & colour Body in white painted aluminum. IP55 from below. IP40 from above. Mounting C95-R is well suitable for all 15 and 24mm T-bar ceilings. For mounting in plasterboard ceilings a frame is available. See accessories for more information. Mounted in cluster: As with conventional light sources you may perceive variations in colour temperature between luminaires mounted close together (cluster). Colour tolerances for LED light sources are normally better or the same as for conventional light sources. For more information, please contact any member of our sales staff. Accessories A frame for plasterboard ceilings available as an accessory. Optics Micro prismatic (MP) or Opalic (OP). Sensors Daylight and presence sensor (D2-SEN) Emergency system Standard (S), Self test (ST) or DALI. 1h or 3h.