35 Watt S76 High Pressure Sodium 120V Ballast Kit No USPS This sign ballast has an

This sign ballast has an input voltage of 120V and has a Rapid Start starting method with 480V Open Circuit Voltage (OCV) and the lamps are connected in Series

175W Metal Halide bulb is suitable for use in enclosed fixtures and has a universal burn design

MH1000/BT37/U/4K 1000 Watt M47/E Metal Halide Light Bulb

400 Lumens ANSI Type M98/O Bulb Shape E17 Base E26 Medium Base Operating Position Universal Start Method Probe Start Finish Clear Bulb Rated Life 15

MagneTek 12310-153-500K

35 Watt S76 High Pressure Sodium 120V Ballast Kit No USPS This sign ballast has anHPS Ballast Cross Reference: Advance Ballast 71A7707 Sylvania Ballast LU35 120R Keystone HPS 35R 1 KIT MagneTek 1233 251U Venture V90B1020 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