Main technical data: Ex mark: Ex de IIC T6/T5/T4/T3 and DIPA21 TA T6/T5/T4/T3 Intended use: Can be used in zone 1 and zone 2 Can be used in zone 21 and zone 22Protection degree: IP66 Rated voltage: 220 V AC, 50 or 60Hz Ambient temperature: -40 ≤ Ta≤55 degrees Lampholder code: E40 Power: 150 to 500W Light source: self-ballasted mercury lamp, incandescent lamp, electromagnetic induction compact fluorescent lamp, metal halide lamp, high pressure sodium lamp and high pressure mercury lamp Terminal: L1,N Cage type terminal, PE terminal 2×10mm2 Cable entry: Molded plasticc M25 x 1.5 cable gland, Outside diameter: Ø8 to 17mm,Molded plastic 1xM25 x 1.5 stopping plugFeaures: Four patents Highest class IIC of flameproof, protection degree up to IP66 Convenient to be wired and mounted due to the wiring of explosion-proof junction box Convenient to be installed and maintained due to the design of ferrule suspension hook type between the glass cover and the lighting fixture body Easier to be wired by cage type terminal which is certified internationally High impact toughened glass cover is compliance with international standard even without the mesh shade External fastener and other accessories are made of stainless steel which is high corrosion-proof Standard equipped with the light source of Philips brand High luminance, high light efficiency and high coloration Energy saving is up to 70% higher than the ordinary incandescent lamp Range of wide operating voltage: 170 to 250V Once start-up, the light is no frequent flash Cold sunlight color: 6,500K Air pump type is used to the light source which makes the design life longer All brands and trademarks used are for reference only