Ballast Capacitors: Type - HID Capacitor; Lamp Type - Metal Halide; Lamp Watts - 250; ANSI Code - M58; Capacitance - mfd - 15.00; Voltage - 400VAC; Construction - Dry-Film; Case Shape - Round Cylinder; Size - 1.75"Dia x 3.75"H; Ballast Family - 71A57x0