Advance 71A6092-001D - 400 Watt - Pulse Start - Metal Halide Ballast - 4 Tap - ANSI M135/M155 - Power Factor 90% - Max. Temp. Rating 221 Deg. F - Includes Dry Capacitor, Ignitor and Bracket Kit Philips Advance 71A6092-001D Metal Halide Ballast, Pulse Start, 400W, 120-277V