PHILIPS ADVANCE 150W HPS BALLAST | 4-Tap 120-277V | Replacement Core & Coil

The Philips Advance 71A8172 is a heavy-duty Core and Coil replacement ballast kit engineered for 150W High Pressure Sodium (HPS) lighting systems. This 4-Tap IntelliVolt compatible ballast supports 120V, 208V, 240V, and 277V inputs, providing maximum flexibility for industrial and commercial electrical environments. Designed with an HX-HPF (High Reactance High Power Factor) circuit, this ballast ensures reliable ignition and efficient operation for S55 rated HPS lamps. The kit includes the essential high-performance capacitor and ignitor, along with mounting brackets, making it a comprehensive solution for repairing or upgrading existing HID fixtures.