Actual work Replacing Inverter light and ballast
Channel: MANNY T. MARINO SCHOOL TRAINING VIDEO CHANNEL
Date: 2020-11-07

If you can change out a light switch or outlet you can definitely replace an old ballast that doesn't work. 

How to change or replace a light ballast. Replacing a fluorescent or HID lighting ballast isn't overly complicated, but as ever with electrical circuitry. 
Lighting ballasts are a key feature of many fluorescent, HID and some LED lamps that allow current to be regulated to suit the lamp type. Without ballasts to control current flow at varying voltages, we’d never see these familiar fluorescent or HID luminaries jump into life - or stay lit for long before burning themselves out.

If you’ve ever walked by a standing light fixture or ceiling batten and heard a low humming or buzzing sound, it’s likely that what you were listening to was the ballast doing its job! But what exactly is a light ballast, and what is it doing while you use the light

https://youtu.be/zyn-T49pEHE