The answer to 'light fixture buzzing noise' is a buzzing or humming sound coming from a light fixture is often caused by an issue with the electrical components or wiring. This can be due to a loose connection, faulty ballast or transformer, or other electrical problems.
Some common symptoms include a loud buzzing or humming noise, flickering lights, or the fixture feeling warm to the touch. Solutions may involve tightening connections, replacing the ballast or transformer, or addressing wiring issues. If the problem persists or you are not comfortable working with electrical components, it's best to call a licensed electrician to diagnose and fix the issue.