STP State Parkway

STP State Parkway, a pendant mounted roadway luminaire. Vertically positioned lamp, with its downward facing refractive globe, delivers an uninterrupted hemisphere of directed light. Provides quality illumination at greater than coventional pole spacing-to-mounting height ratios.

Removable ballast tray for easy maintainance. Hinged refractor for easy relamping. Structure of high-strength cast aluminum and heavy gauge spun aluminum. An optional integral Plumbizer ensures that the luminaire installs plumb.

STP is designed to utilize a wide range of light sources, including LED, High Intensity Discharge (HID), and others. These light source families provide high efficiency in lumen output, service life and energy use.


All components are made from high-strength ASTM 356.1 cast aluminum and heavy gauge spun aluminum. Top casting shall have a cast aluminum captive hinge and (1) solid catch with thumb triggered secondary lock securing the body spinning which allows quick and easy access to the ballast compartment. Removable ballast plate for easy maintenance. The refractor support ring shall be an aluminum extrusion with hinge allowing easy access to the lamp.


Borosilicate glass, injection-molded polycarbonate, or, acrylic refractive globe with specular internal reflector. Available in symmetrical and asymmetrical light distribution.

Available in a wide range of lamp choices and wattage ratings including High Intensity Discharge (HID) and Incandescent.


Meets UL 1598 for Safety. Luminaire shall have porcelain socket rated for 600V with 4kV pulse and uses a nickel-plated screw shell with spring-loaded center contact and lamp grips. Luminaires shall be prewired and factory tested. The ballast shall be a high power factor, constant wattage autotransformer type. The power factor shall be at least 90%.


To insure product durability, all exposed metallic surfaces shall be finished with a high performance coating consisting of high gloss Super Durable polyester powder coat paint to be applied utilizing a multistage process that includes phosphate pretreatment, electrostatic powder application, and convection curing. Paint shall be weather, corrosion, abrasion, and UV resistant in compliance with the American Architectural Manufacturers Association’s specification AAMA 2604-05. Color to be specified.


Pendant mounts to a 1-1/4” NPS nipple using a 1-1/4” NPS coupling in top casting of luminaire. One (1) 3/8”-16 UNC stainless steel allen head cup point set screw stops the luminaire from unwanted movement on the nipple. Optional PLZH Plumbizer replaces 1-1/4" NPS coupling to ensure luminaire installs plumb.