Hydrotech’s High Pressure Sodium ballast kits come ready to use complete with 11′ lamp cord with mogul socket and 8′ power cord. Our ballasts are housed in a unique box designed to keep the unit cool. Ballasts are quad-tabbed with line voltages of 120v, 208v, 240v, and 277v available. *For use only with 1000w High Pressure Sodium lamps or 1000w Metal Halide Conversion lamps.