GE Lighting 72109 GE296HO-MV-N-DIY LFL Multi-Volt ProLine Electronic Program / Rapid Start Ballast for 1 or 2 F96T12HO Rapid Start Mount length: (M) 11.0-Inch GE's ballasts are among the highest energy-efficient ballasts available Ballast factor: Normal, lamp wiring: Series Starting method: Rapid start Ballast type: Electronic