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What is a ballast?

April 26, 2017ballast

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What is a ballast?

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A ballast is an auxiliary piece of equipment designed to start and properly control the flow of power to fluorescent lamps. Essentially, either end of a fluorescent lamp is connected into a ballast. Even though ballasts are replaced infrequently compared to fluorescent lamps, they should also be recycled. Fluorescent light ballasts manufactured before 1979 contain insulating compounds known as polychlorinated biphenyls (PCBs).