42182768 <PERLUCE O LED3800-840 D450 LDE IP50 WH Circular LED surface-mount luminaire with IP50 with opal diffuser. , DALI controllable luminaire with LED converter. LED service life lasts 50000 h before luminous flux is reduced to 95% of the initial value. Chromaticity tolerance (initial MacAdam): 3. Luminaire luminous flux: 3760 lm, Luminaire efficacy: 131 lm/W. Colour rendering Ra > 80, colour temperature 4000 K. Integrated ESD protection of the LED module. Housing made of pre-painted, roll-formed sheet steel, white, with injection-moulded diffuser made of opal polymethylmethacrylate. Edges sealed by high-quality foamed, water-repellent polyurethane seal; practical fastening via plastic fixing clips. Approved ambient temperature: -20°C to +25°C. Luminaire wired with halogen-free leads. Please note: please talk to your adviser if you are planning to use the luminaire in environments containing chemical pollutants or with outdoor use. Dimensions: 450 x 450 x 114 mm; weight: 2.5 kg.