When your fluorescent light flickers or makes a loud and annoying hum, a degrading ballast could be the cause. Replacing a ...

If changing the light bulbs still does not solve the problem, the problem is most likely with the ballast, a transformer in the light fixture that changes the voltage from 120 volts to the required ...

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. I ...

To comply with new laws on reducing energy usage, fluorescent and HID lighting systems — both examples of arc discharge lamps — have become more complex and varied in their performance. To understand ...

An older area of the plant is now nicknamed “The Twilight Zone” because strange things happen there. Sometimes, lights flicker for several hours and then stop flickering. A fluorescent ballast will ...