DWC1 Composite Mini Beacon Bollard with Integral Transformer is constructed from a single piece compression molded fiberglass reinforced polyester composite material that is textured, pressure formed and molded-in-color in Black. Frosted borosilicate glass optical assembly. One 20 watt T3 bipin halogen lamp included. Lower wattage lamps are acceptable. Includes electronic transformer. 4.9 inch diameter x 8.8 inch overall high. ETL listed for wet locations.