An electronic ballast from Grainger can control the electrical current to fluorescent and compact fluorescent (CFL) lighting. Electronic ballasts are more energy efficient than electromagnetic ballasts and can eliminate visual flickering and audible humming of fluorescent bulbs. Use an instant ballast or a programmed ballast to control lighting that frequently turns on and off due to occupancy sensors. Shop at Grainger for an electronic ballast that can save you money and properly control factory, office and outdoor lighting systems.