Advance 71A5493 Metal Halide HID Ballast

Advance 71A5493 Metal Halide HID Ballast is a magnetic core-and-coil ballast kit designed to drive a single 150-watt metal halide lamp in commercial luminaires. Part of the Philips Advance/Signify 71A family, this ballast is specified for 150W MH lamps with ANSI codes M102 and M142 and is offered in quad-kit configurations (for example, 71A5493-500D). It accepts 120/208/240/277 VAC at 60 Hz and uses an HX-HPF circuit topology to maintain stable lamp operation. The unit is designed to deliver a high power factor and a ballast factor near 1.0, supporting consistent light output across the full input voltage range. Typical applications include industrial and warehouse lighting, canopy and outdoor fixtures that use a single 150W MH lamp; the core-and-coil construction emphasizes reliability in commercial environments. This catalog number is documented across Philips Advance and distributor spec sheets as a 150W MH ballast in the 71A family, confirming its intended use with M102/M142 lamps and corresponding ballasts.