GE UltraMax Proline Electronic Ballast, 120/277 Volt Instant Start Ballast, Normal Ballast Factor, Ballast for Fluorescent Light (1) or (2) Lamp T12 - Electric Plugs - Amazon.com
GE Lighting UltraStart Proline Electronic Ballast, 120/277 Volt Program/Rapid Start Ballast, Normal Ballast Factor, Ballast for Fluorescent Light (1) or (2) Lamp T12 - Electric Plugs - Amazon.com
GE T12 2-Bulb Commercial Fluorescent Light Ballast in the Ballasts department at Lowes.com
GE PRO LINE T12 - Electronic Ballast GE240RES120-DIYB 120 Volt New Lamp F | eBay
Standard 120V T12 Rapid Start High Output Electronic Ballast 1-2 Tubes - TremTech Electrical Systems