Whether you own a commercial building or have emergency lighting installed in a residential area, it is important to ensure that the lighting is functioning properly. Testing your emergency lighting regularly ensures that it works as intended when you need it most. In many cases, emergency lighting is not something that is always on and instead only comes on when the power is off. For this reason, testing your emergency lighting is something that you can easily forget to do.
If you’ve ever been in a room or near a sign with fluorescent lighting that seems to be buzzing you’ve likely heard what a failing electrical ballast sounds like. But what is an electrical ballast and why are they important? In this article, we will break down some of the most frequently asked questions about electrical ballasts that you may have including how to know if a fluorescent ballast is bad.