The following will help you discover the problem with your light fixture ballast.
Fluorescent light ballast problems.
As i said in the intro we noticed this happening over a 3 4 week period.
Fluorescent light bulbs have a typical lifespan of 8 000 to 15 000 hours and ballasts often work for more.
The most common problems with fluorescent light ballast and how to fix them.
Electrical tip about t8 and t12 fluorescent lamps.
Fluorescent light fixtures are commonplace in both residential and commercial settings.
Troubleshooting the ballast of a fluorescent light is a fairly basic test.
Take notice of the type of lamps that are installed in the light fixture and information on the ballast pertaining to the lamp types.
A good way to check that your ballast is the culprit is to turn on a voltage detector and hold it next to the wires supplying power to the ballast.