What is a ballast?

A ballast is a device used to limit the amount of current in an electrical circuit. They are most commonly used in <a href="https://www.wikiwhat.page/kavramlar/fluorescent%20lighting">fluorescent lighting</a> to regulate the current flowing through the tube. Without a ballast, the current would rapidly increase, causing the bulb to overheat and burn out very quickly.

Ballasts can be categorized into two main types: magnetic ballasts and electronic ballasts. <a href="https://www.wikiwhat.page/kavramlar/magnetic%20ballast">Magnetic ballasts</a> use an inductor (a coil of wire) to limit the current. They are generally less expensive but also less energy-efficient, heavier, and can cause the lights to flicker. <a href="https://www.wikiwhat.page/kavramlar/electronic%20ballast">Electronic ballasts</a> use electronic circuitry to regulate the current. They are more efficient, lighter, eliminate flickering, and often offer features like dimming capabilities.

A failing ballast can exhibit symptoms such as flickering lights, humming or buzzing noises, dim light output, or the complete failure of the lamp to light up. Replacing a malfunctioning ballast is crucial for maintaining the proper operation and lifespan of fluorescent lighting fixtures.