This mogul socket needs to be plug into ballast that corresponds to the bulbs used. For example, if you are using a 600 watt HPS or MH bulbs it will need a 600 watt ballast to operate.
6kv horizontal socket
15 feet 16 gauge lamp cord with S male plug (Sun System ballast or Hydro Times ballast)
Water tight pigtail strain relief
Works with both HPS/MH lamp
Will NOT work with CFL Lamp, ballast is required for operation