400 Watt S51 High Pressure Sodium 5-Tap Ballast Kit Discontinued Keystone MH-400A-P-KIT Metal Halide Ballast

Keystone MH-400A-P-KIT Metal Halide Ballast Kit Specification Sheet

Circuit Type CWA

94" H Warranty 2 Year Limited

Recommended for use with ANSI Ballast Type S62

400 Watt S51 High Pressure Sodium 5-Tap Ballast Kit Discontinued Keystone MH-400A-P-KIT Metal Halide BallastHPS Ballast Cross Reference: Advance Ballast 71A8453 001D Universal Ballast S400ML5AC5M 500K Howard S0400 81C 211 Sola E 971 WDD SO400 High Intensity Discharge (HID) lamps require a ballast to apply starting voltage to the lamp and establish current flow an arc between the lamp electrodes. Without a ballast, the arc will extinguish or draw increasing current until some circuit element burns up. Ballasts provide system stability by limiting the current