High performance catenary suspended indirect luminaire for area lighting applications where an absence of poles is desired.

Conical primary housing is cast aluminum. Machined ¾” thick tempered glass lens with exposed edge is bonded to precision machined anodized aluminum lens ring. Lens assembly is sealed to the housing with one-piece EPDM gasket and secured with three recessed setscrews. Formed aluminum roof houses the secondary reflector system. Twin pairs of aluminum connecting rods join the cast aluminum conical housing to the formed aluminum roof and act as a wire way for power to the lamp socket. Cable hanger system, weatherproof junction box, and sealed enclosure for electronic ballast are mounted to the top of the roof. All hardware is stainless steel.

Primary reflector system uses deep drawn parabolic reflector with specular surface to reduce uplight to 1.4% of total lamp lumens. Matte black band is press-fit to the inner perimeter of the reflector. Reflector is nested within the top of the luminaire and works in conjunction with secondary reflector described below. Machined tempered glass lens includes black ceramic masking.

Secondary reflector is composed of specially formulated injection molded plastic modules, consisting of nine facets each. Facet curvatures shall vary according to position within the secondary reflector, producing Type V square distribution with cut-off better than 60°. Facet surfaces are vacuum metallized for specularity and finished with double layer of protective clearcoat. Secondary reflector shall have 36 modules consisting of 324 individual facets.

Ceramic metal halide electronic ballast shall be Sound Rated A and Outdoor Type 1 rated. Ballast shall have a minimum high power factor rating of 97% and nominal ballast factor of 0.99. Total harmonic distortion shall be less than 10%. Ballast shall be capable of reliable starting to -20°F (-30°C) at nominal line voltage. Ballast is UL and CSA recognized. G12 base porcelain socket is 660w-600v, 5kV pulse rated.

Cable hanger assembly consists of two stainless steel clamps with vertical adjustment capability to mount and level the luminaire. Clamp positions permit parallel or perpendicular alignment of connecting rods to the catenary cable. (Structural design, stainless steel catenary cable, cable fittings, and fittings for mounting to support structure provided by others.)