42936952 CR2 M17k-840 PM NB LDO WH LED high-bay luminaire , including LED converter, Slave luminaire for DALI control (DALI only), housing made of extra-robust, deep-drawn sheet steel, powder coated in colour white. Cover of clear polymethyl methacrylate (PM) with high breaking strength and optimised stress crack resistance, especially resistant to oils, alkalis, ammonia and UV radiation. Chromaticity tolerance (initial MacAdam): 2. Luminaire luminous flux: 16800 lm, Luminaire efficacy: 180 lm/W Colour rendering Ra > 80, colour temperature 4000 K. glare-free lighting: UGR < 25 (EN 12464:2011). Sealed optical lens system. Lenses with diagonal dome structure for maximum efficiency Luminaire with symmetric narrow light distribution (narrow beam). Pre-assembled 2m long 5 x 1 mm² connection cable for very high continuous temperatures (halogen-free, flame-retardant). Vibration resistant (EN 60598-1:2015/IEC 60598-1:2017 Ed. 8.1). LED risk group RG0 (IEC/EN 62471), luminaire wired with halogen-free leads, silicone-free. Note: please contact your consultant if you are planning to use in ambient atmospheres with chemical loads, high or condensed air humidity or large temperature fluctuations. Protection class: SC1; degree of protection: IP66; ambient temperature: -10°C to +45°C; Dimensions: 540 x 470 x 77 mm. Weight: 4.9 kg.