High Intensity Discharge (HID) Ballasts
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Philips Advance 73B5790500D - 250 Watt - M58 / H37 - 120/208/240/277 Volt - Encapsulated Ballast
Philips Advance 73B5790-500D - 250 Watt M58 Metal Halide or H37 Mercury Lamp - 120/208/240/277 Volt Encapsulated Ballast w/ 15MFD 400VAC Capacitor
Learn More...$376.46