UNIVERSAL AUTOTRANSFORMER 400W S-51 LAMP
400 Watt S400ML5AC4M500K 120-480V High Pressure Sodium Kit
The Universal Lighting 400W S400ML5AC4M ANSI 51 5-Tap replacement ballast comes with brackets, ignitor, capacitor and screws. Universal's 400W HPS replacement kits contain the appropriate core & coil, a properly rated capacitor, and all other components required for your ballast replacement. Universal 400 Watt S400ML5AC4M-500K replacement ballast kit comes pre-wired and color coded leads to reduce the risk of incorrect wiring. The S400ML5AC4M500K also includes simple installation instruction and a trouble shooting guide. Please see our entire selection of 400W high pressure sodium lamps and 400W high pressure sodium ballasts.