How does the fluorescent lamp ballast judge good and bad
It is possible to measure the resistance of the three ballast and see whether the ballast is damaged. You can also change the glow and see if the burner is not disconnecting, and it's always on the path. So let's do substitution. Is that ok?
This kind of old-style ballast is broken, usually the coil is burned, causing no voltage on both ends of the tube, causing the lamp to burn. There will be a lot of cases for electronic ballast
Distinguish electronic ballast from good or bad Remove the glow and turn off the power and test the ballast. If the ballast is the older inductor, the inductor can test the coil if it is burned.
