W hen your fluorescent light flickers or makes a loud and annoying hum, a degrading ballast could be the cause. Replacing a ...

When compared to regular fluorescent lights with magnetic ballasts, the use of high frequency electronic ballasts, 20,000 hertz or higher, in fluorescent lights resulted in more than a 50 percent drop ...

Ballasts are power supplies or transformers for fluorescent lamps, light sources that consist of a glass tube filled with argon, neon, or other inert gas. When ballasts supply electrical current, the ...