ULTim8® High Lumen ballasts are the high efficiency high ballast factor choice for high lumen T8 applications. Universal Lighting Technologies’ ULTim8® family of high efficiency high ballast factor ballasts are ideal for new fixtures and T12 retrofits. With the application trend of fewer T8 lamps with more light and fluorescent replacing HID, ULTim8® High Lumen ballasts cover both with a single product family.