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- High Pressure Sodium Lamp Ballast - ANSI S50
- Input Watt: 250
- Input Voltage: 120/208/240/277
- 60Hz
- Includes Dry Film Capacitor, Igniter & Bracket Kit
http://www.ballastshop.com/71a8172.html ; http://hdsupplysolutions.com/wcsstore/B2BDirectStorefrontAssetStore/1_Recode/product/fm/additional/Ph/Philips_Advance_327617_%20Wiring_Diagram.pdf