Die Cast Aluminum Housing with External Heat Sinks for Cooler Operating Temperatures. Textured Architectural Bronze Powdercoat Finish Over a Chromate Conversion Coating. Includes four-inch stem. Maximum Stem Length is 40 feet. Flat Clear or Prismatic Glass Lens, Acrylic Drop Lens, Polycarbonate Drop Lens or Acrylic Conical Lens. DLC Listed.