Industrial E-971-DD-SO250 High Pressure Sodium Ballast Kit

The Sola E-971-DD-SO250 is a 250W S50 high-pressure sodium ballast kit designed for 480V electrical systems and intended for a single 250W HPS lamp. It uses a core-and-coil ballast configured as a CWA (constant-wattage autotransformer) circuit and arrives prewired to the rated dry capacitor and an internal discharge resistor, with the appropriate starter included where necessary to ensure reliable ignition and smooth operation across voltage fluctuations. Designed for industrial and outdoor fixtures that deploy 250W S50 lamps, this kit supports a 480V supply and carries the ANSI S50 designation, making it compatible with standard outdoor luminaires used in parking lots, street lighting, and loading-dock areas. As a SOLA-branded ballast solution, E-971-DD-SO250 provides a complete 250W HPS ballast assembly for 480V networks, emphasizing dependable startup, steady wattage, and compatibility with common 250W HPS luminaires in demanding commercial environments.