How test ballasts fluorescent light fixtures | ehow, Fluorescent light ballasts control the voltage delivered to the fluorescent tubes, allowing them to start and to operate at rated output. when the fixture is switched. How test fluorescent light fixtures | ehow, A fluorescent light is a tube filled with a gas that creates light when electricity is run through it. the ballasts on the sides of the fluorescent tube control the. How replace ballast fluorescent lighting fixture, All fluorescent light fixtures consist of at least lamp(s), lamp holders, ballast and internal wiring. some older types have "starters", too. the ballast is used to.
How replace ballast fluorescent lighting fixture, All fluorescent light fixtures consist lamp(), lamp holders, ballast internal wiring. older types "starters", . ballast . http://www.wikihow.com/Replace-the-Ballast-in-a-Fluorescent-Lighting-Fixture