Explosion-proof, highly efficient LED damp-proof diffuser with polycarbonate tube. Suitable for use in areas that are occasionally at risk of explosion during normal operation due to flammable dust clouds (zone 21/22). Suitable for use in areas that are occasionally at risk of explosion during normal operation due to gases, vapors or mists (zone 1/2). ATEX marking II 2G Ex db IIC T6 Gb / II 2D Ex tb IIIC T85°C Db / -20°C = Ta = +50°C. Mounting accessories available as accessories to be ordered separately. Also suitable for suspended mounting with accessories to be ordered separately. With Lambertian light intensity distribution. Luminaire luminous flux and light color fixed. Rated luminous flux 4750 lm, rated power 40 W, maximum luminous efficacy of luminaire 119 lm/W. Light color neutral white, correlated color temperature (CCT) 4000 K, general color rendering index (CRI) Ra > 80. Color tolerance (initial MacAdam) = 3 SDCM. Average rated service life L80(tq 55 °C) = 50,000 h. Luminaire body made of 5 mm thick, UV-resistant polycarbonate, end caps made of an aluminum alloy. Color of the end caps signal yellow. Internal device carrier made of sheet steel, powder-coated white. Seals made of NBR (nitrile butadiene rubber). Dimensions (L x W): 1360 mm x 157 mm, luminaire height 197 mm. Protection class (EN 61140): I, protection type (DIN EN 60529): IP66. Permissible ambient temperature -20 °C = Ta = +50 °C. Weight: 9.6 kg. The light is suitable for operation on a 230V direct current network (DC). With electronic control gear, switchable. The product meets the basic requirements of the applicable EU directives and the Product Safety Act and bears the CE marking.