This is what makes the light stay lit, so a fluorescent light requires a ballast in order to work. Without it, the current would increase as it passed through, ruining the lamp (bulb).

Q: My home is about 20 years old. My problem is with the lights in the kitchen. Sometimes they work and sometimes they don’t. When I turn on the switch, the light flickers or just partially lights.

Inside the lighting ballast of the luminaire, the 78M6613 replaces a microcontroller unit that receives DALI commands and controls dimming, and adds functionality for accurate power-consumption ...