Street Light Fixtures: Fixture Type - Roadway Cobrahead; Lamp Type - HPS; Watts - 250; Lamp Included - No; Voltage - 347V; Ballast Type - Autoreg; Distribution - Type III, Medium Cutoff; Housing - Die Cast Aluminum; Finish - Gray; Refractor - Flat Lens, Glass; Mounting - Slipfitter; Additional Information - Plug-in Base and Ignitor, Fiber Gasketed; Manufacturer Series - M-400A Powr/Door