Sola E-SZA00W100 - 100 Watt - 120-277 Volt - HPS Ballast | CityLightsUSA.com
Advance 71A8107001DB - 150 Watt - High Pressure Sodium Ballast with Integral Ignitor - ANSI S55 - 120 Volt - Power Factor 90 - Min. Temp. Rating 221 Deg. F - Includes Dry Film Capacitor and Bracket Kit - Electrical Ballasts - Amazon.com