Metal Halide Ballast Cross Reference:
Advance Ballast 71A5570-001D
Universal Ballast M175MLTAC3M-500K
Sylvania Ballast M175/MULTI-KIT
Venture V90D6111K
Howard M0175-71C-212-K
Sola E-871-W-117

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 that can be drawn.

Core and Coil metal halide HID ballasts are used in over 90% of all HID lighting. Replacement ballast kits contain the appropriate core and coil, a properly rated capacitor and all components required for ballast replacement. Keystone Ballast core and coil models are ideal for a wide variety of lighting applications, including factories, warehouses, gymnasiums and retail stores.

This quad tap (or multi tap) replacement HID ballast covers 4 primary input voltages commonly utilized in the United States. Keystone Ballast MH-175A-Q-KIT, Quad Tap Metal Halide Ballasts, HID Ballast kits for 175W Metal Halide, Core And Coil, Circuit Type CWA, Metal Halide Lamp Type, 175 Lamp Watts, M57/H39 ANSI Ballast Type, 213 Input Watts, 120/208/240/277 Input Voltage, 60 Hz. The dimensions on this MH ballast are 2.80" Long x 2.42" Wide x 3.94" High. This Keystone Ballast carries a 2 year warranty.

Note: These MH-175A-Q-KIT lighting ballasts are also valid replacement HID kits for 175 watt mercury vapor light fixtures. Also rated as an ANSI code H39 ballast, this UL listed ballast serves multiple applications.