400 Watt, High Pressure Sodium (HPS) Ballast, 120/208/240/277V, ANSI Code: S51/M169. Includes: Dry Film Capacitor, Ignitor and Bracket Kit.
- Type: Pulse Start
- ANSI Code: M169
- Wattage: 400
- Shape: ED18 (Elliptical Dimple)
- ANSI Code: S51
- Light Technology: HID
- Volts AC Range: 120 - 277