Metal halide lamps with quartz technology for enclosed luminaires. : POWERSTAR® quartz technology. Light colors: neutral white (N), daylight (D). : E40 screw base for simple lamp handling. UV values significantly below the maximum permitted thresholds to IEC 61167 thanks to UV filter. : Factories and workshops. Sports halls and multi-purpose halls. Industrial installations. Docks and port facilities. Marshaling yards, container transshipment facilities. Buildings, monuments, bridges. Approved only for use in enclosed luminaires. Outdoor applications only in suitable luminaires. : Disconnect mains before installation.. Must not be used if outer bulb is defective.. Lamp to be used only in a closed luminaire..