Philips Advance Metal Halide Ballast - 200W | 120/277/347V AC | Pulse Start

Philips Advance Metal Halide Ballast (71A56A2-500D). This model belongs in a fluorescent lighting system with the lamp configuration stated for this ballast. The 200W MH operating configuration distinguishes this ballast from versions intended for a different lamp count. This is the pulse start version, so the fixture wiring and lampholder arrangement must suit that starting method.

The 120/277/347V AC supply specification must match the circuit serving this model. Compare length 3.90 in., width 3.60 in., height 2.80 in. with the available space for the ballast compartment, especially when retaining an existing enclosure or shade. Follow the wiring diagram for this model when making the replacement connections.

Buying tip: Match the lamp designation, number of lamps and supply voltage to the existing ballast.