A fluorescent ballast is a device that regulates the electrical current flowing through a fluorescent lamp. It is essential for starting and maintaining the lamp’s operation, and it also provides the necessary voltage and current to the lamp.
There are several ways to check a fluorescent ballast. One way is to use a multimeter to measure the voltage and current at the ballast’s input and output terminals. Another way is to use a ballast tester, which is a specialized tool designed to test ballasts.