What causes a fluorescent light fixture to flicker?

Blinking can also be caused by a loose connection in some of the wires inside the fixture, or by a defective ballast. It can also be caused by low temperatures (below about 50 degrees) unless you have special low-temperature tubes and low-temperature starters.

Why is my fluorescent tube flickering?

Flickering fluorescent lights can also be a result of temperature. If the air around the bulb is cold and circulating, the bulb won’t be able to generate enough heat to work properly. The internal temperature of a fluorescent bulb should be about 50 degrees Fahrenheit for it to work properly and optimally.

How do I stop my fluorescent lights from flickering?

A bad ballast in the fixture. Replacing a bad magnetic ballast with an electronic ballast can remove problems of flickering fluorescent light and will lower the operating cost of the fixture.

How do you diagnose a fluorescent light problem?

Bulbs are the most common problem with a bad fluorescent fixture. Look at the end of the bulb for a dark area; if you see one, the bulb is either bad or going bad. Replace it with a fresh one. If it is a two-bulb or four-bulb fixture, replace the pairing of tubes.

How do you test a fluorescent ballast?

How to Check If the Ballast Is Bad in Fluorescent Lighting

  1. Turn off the fluorescent fixture’s circuit breaker inside the breaker panel.
  2. Remove the fluorescent bulbs from the fixture.
  3. Remove the ballast cover from the fixture, if the ballast is not already exposed.
  4. Set the multimeter to the ohm setting.

Which type of ballast we have less flickering?

Rapid start ballasts don’t flicker, so you won’t get that disco party effect when you turn the lights on. There are two drawbacks to rapid start ballasts: Rapid start ballasts are not very energy efficient.

How do you tell if a fluorescent bulb is burned out?

Expect the light to dim as it nears its end. When it does burn out, expect a dramatic pop and a distinct odor. The CFL bulb might even produce smoke while the base of the bulb turns black.

Can you repair a fluorescent light ballast?

If you can change out a light switch or outlet you can definitely replace an old ballast that doesn’t work. As I said in the beginning, you’ll save yourself $75 to $90 doing this fix yourself.

How long do ballasts last?

12 to 15 years
According to the Certified Ballast Manufacturers Association, the average magnetic ballast lasts about 75,000 hours, or 12 to 15 years with normal use. The optimum economic life of a fluorescent lighting system with magnetic ballasts is usually about 15 years.