The Bosch LED-658-SW intelligent IR illuminator with explosion-protection makes the best choice for illuminating the dark places / times of high risk areas. It resists heavy impacts, thanks to the sturdy 316L stainless steel construction. Not only does it excel in enduring impacts, it also produces an even illumination throughout the area by using the 3D diffuser technology. With 50 degree of width and up to 149 feet coverage range, the IR beam reaches wide area. This 850 nm semi-covert IR illuminator supports Constant Light technology that adjusts light output that maintains the same illumination level throughout its life period. The Bosch LED-658-AW IR illuminator features a built-in junction box and sunshield. It follows easy one-piece installation. Features: Electropolished 316L stainless steel or aluminum construction 3D diffuser technology for even illumination Integrated junction box ATEX, UL, IECEx and INMETRO Certifications Constant Light technology Remote turn on Easy one-piece installation Sunshield included Specifications: IR Source High-efficiency LED array with current limited integral power circuit Beam Patterns 20° or 50° Wavelength 850 nm Power consumption 37 to 40 W (40 W max. power). Power consumption will vary over time due to the intelligent IR’s optical output control which compensates for LED degradation and ambient temperature fluctuations. Model Horizontal Angle , AchievableDistance1 , Horizontal Field of View LED-658-AM/SM 20 , 54.3 m (178.1 ft) , 18.9 m (61.9 ft) LED-658-AW/SW 50 , 39.3 m (c ft) , 33.2 m (109.0 ft) Dimensions (L x W x H) 381 x 114 x 114 mm(11.01 x 4.5 x 4.5 in.) without sunhood or mounting cradle Weight Stainless Steel: 12.7 kg (28 lb)Aluminum: 6.1 kg (13.5 lb) Construction Electropolished 316L Stainless Steel or Anodized Aluminum Bracket Pan(±36°)/Tilt(±45°),mounting cradle included Cable Entry Four (4) 3/4-in. NPT entries View Window 9-mm thick borosilicate float glass     Operating Temperature -50 °C to +60 °C (-58 °F to +140 °F)