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HDK472 / 473 / 474 – Ultra-convenient industrial modular luminaire


  • Name

    Product family information

    This modular range of high-bay industrial HDK luminaires is ideal for use in large indoor areas and is designed to work with 250 or 400 W sodium, metal-halide or mercury vapor lamps. Produced with high-quality materials, it offers two reflector options: open (GDK472) or closed (GDK473), and may be accompanied with a glass front (GDK472 PG or GDK473 PG), depending on the reflector. The HDK472/473 model features a tube suspension system (ZDK472 SPR), or track/rail (ZDKEH 473). The HDK474 model is made of cast aluminum, for use without ballast housing.


    Modular luminaire for various types of industries
    Available in two beam apertures: open (WB) and closed (NB)
    Box with equipment offering perfect heat dissipation
    Off-axis lamp socket to prevent sparks


    Polished and anodized high-purity aluminum reflector
    Option of protective 5 mm tempered glass
    Stainless-steel clips and fasteners
    Emergency equipment option (R-EL)


    General industrial areas
    Covered sports fields
    Storage areas
    Product family details
    • HDK472
    • HDK474
    • GDK472
    • GDK473
    Light source
    • 1 x 250 W / 1 x 400 W HPI-P – SON
    Mains voltage
    • Electromagnetic 220 V / 50-60 Hz
    Optical cover
    • 5 mm tempered glass
    Materials and finishing
    • Housing: treated steel plate
    • Finishes: special anti-corrosive, black finish (HDK472). Polished and anodized high-purity aluminum reflector
    • Rim of the glass: cast aluminum sealed with felt
    • Stainless-steel clips and fasteners
    • E40 reinforced porcelain lampholder, nickel-plated brass alloy screw with central copper-plated telescopic contact
    • Stainless-steel stabilizing anti-vibration spring for lamp
    • Suspended by means of threaded tube with Ø 19 mm (3/4”) with accessory (ZDK472), or fixed directly to the ceiling or track with accessory (ZDK473)
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