Do I Need To Change My Fluorescent Bulbs? - John Nugent & Sons (2024)

Northern Virginia’s Electrical Expert Since1975

So, your fluorescent lights have started to flicker. This is a major disturbance you want to solve as soon as possible. However, when fluorescent bulbs flicker, the situation is more than just a minor annoyance. If your fluorescent lights flicker, you should fix the problem immediately because flickering can cause the ballast to overheat or fail. We offerelectrical services in Northern Virginia, and we can help you if your fluorescent bulbs flicker.

If you need help replacing the flickering fluorescent lights in your home, give the electrical experts at John Nugent & Sons a call! We’ve been helping your Northern Virginia neighbors with electrical installations and repairs since 1987.

Problems With Your Fluorescent Bulbs

If your fluorescent bulbs flicker, most likely the problem is with the bulb itself. If the bulb is very dark on either end, it may be defective and burned out. The best way to test the functionality of a bulb is to put it into a fixture you know works. If the bulb doesn’t work or flickers in a working fixture, you know the problem is with the bulb and not the fixture. The problem could be with the starter in your bulb, but most new bulbs do not have starters. However, if your bulb has a starter, you should be able to see it at the bottom of the bulb! Fluorescent bulb starters generally look like gray metallic cylinders and require a simple replacement!

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. If the air around the bulb is too cold, you can use an enclosed light fixture to help insulate the bulb. It’s also possible that you may be using the wrong type of fluorescent bulb that is simply not compatible with your ballast.

If you need help determining the reason why the fluorescent lights are flickering in your Northern Virginia home, contact John Nugent & Sons today!

Fluorescent Light Fixture Problems

If you’ve determined the reason your fluorescent lights flicker is not a result of any problems with the bulb, the problem is likely with the fixture. If you test your bulb in a known working fixture and it works perfectly, it is probably time for you to replace your ballast.

Issues with the Ballast

In your lighting system, the ballast regulates the current flowing to the fluorescent lights and provides the voltage needed to start the lamps. The ballast takes in electricity and then regulates current throughout the bulbs. Without a properly operating ballast to limit the light’s current, a fluorescent lamp connected to the electrical source would quickly and uncontrollably increase its current flow—causing the lamp to burning out. This is why a degrading ballast will cause the fluorescent lights to flicker.

If you don’t address your flickering fluorescent lights when you first notice the issue, your ballast will continually overheat and eventually fail. A typical ballast will generally last about 20 years, but cold environments and bad bulbs can decrease this lifespan significantly. If your ballast has started to degrade and is impacting how well your fluorescent lights are illuminating your space, don’t worry! Replacing a ballast is quite simple and rather inexpensive.

Schedule an appointment with the electricians at John Nugent & Sons if you need you ballast replaced!

Call John Nugent & Sons for Electrical Services in Northern VA

Not sure if you need to call the professionals at John Nugent & Sons to fix your fluorescent lights?Small issues might not seem like much more than an annoyance, but if you let them sit for too long it might develop into major issues!Whatever electrical problem you’re experiencing, our electricians can solve it!We’ll diagnose the problem and perform electrical repair as quickly as possible so you can have your home back to normal.Our electricians are highly trained so you can rest assured knowing you will have an expert working in your home.

We know how busy you are, that’s why you canschedule your appointment online to fix your fluorescent lights, at any time!

Do I Need To Change My Fluorescent Bulbs? - John Nugent & Sons (2024)

FAQs

Should you replace fluorescent bulbs? ›

Fluorescent lights age significantly if they are frequently switched on and off. Typical lamp life for a fluorescent bulb is about 20,000 hours, but this can degrade as a consequence of frequent switching (turning on and off). Burning life is extended if lamps remain on continuously for long periods of time.

How do I know when my fluorescent bulbs need replacing? ›

So Your Bulbs Are Flickering? Find Out If It's Time To Replace Your Fluorescent Bulbs
  1. Bulbs flickering rapidly.
  2. A buzzing sound coming from your fixture.
  3. Black bands visible on the tube.
  4. Dim light.
  5. Swollen casing.
  6. Any leakage.

How do I know if my fluorescent starter is bad? ›

How do I know if I need a new starter for my fluorescent tube?
  1. Is flickering; this means the starter fails to ignite.
  2. Does not light up.
  3. Light up at one end only.
  4. Lights up at both ends, but not in the middle.
  5. Only lights up when you touch it.

How many years do fluorescent lights last? ›

Since some fluorescent tubes are made of glass, the likelihood of the tube breaking increases, including the risk of exposure to mercury. Fluorescent tubes last anywhere from 3-5 years before a replacement is required but it absolutely depends on the ballast.

Is it worth replacing fluorescent tubes with LED? ›

Compared to fluorescent bulbs, LED lights are up to 80% more efficient. Unlike fluorescent lights, LED lights convert 95% of their energy into light and only 5% is wasted as heat; this is all while still using far less power to provide a strong and consistent output at a lower wattage.

Should I replace my fluorescent tubes with LED? ›

Converting fluorescent tubes to LEDs is the order of the day. This is because LED tubes have lower power consumption, are considered to be more environmentally friendly and even have a longer service life.

How do I know if my fluorescent bulb or ballast is bad? ›

Signs your fluorescent light fixture ballast is failing
  1. Light bulbs controlled by the magnetic ballast are taking longer to start and illuminate.
  2. You hear a buzzing noise coming from the fluorescent light fixture.
  3. The fluorescent bulbs flicker, are dim or provide uneven light.
Oct 18, 2022

How to tell if ballast or bulb is bad? ›

2. Look for warning signs that the ballast is failing.
  1. Buzzing. If you hear a strange sound coming from your bulbs or light fixture, like a buzzing or humming noise, that's often a sign your ballast is going. ...
  2. Dimming or flickering. ...
  3. No lights at all. ...
  4. Changing colors. ...
  5. Swollen casing. ...
  6. Burn marks. ...
  7. Water damage. ...
  8. Leaking oil.
Jun 25, 2020

How long do 4 foot fluorescent bulbs last? ›

The answer is surprising. A typical 32 watt, four foot fluorescent lamp is rated to burn for about 20,000 hours. Turning the lamp on for brief periods will result in shorter expected bulb life in terms of burning hours. The 20,000 hour figure assumes about 6,600 "starts" at a "typical" burn time of three hours.

What are the common faults of fluorescent lamp? ›

8 Issues with Fluorescent Lighting
  • The Fluorescent “Buzz” Just at the mention of fluorescent buzzing, you can conjure up the sound in your mind. ...
  • Mercury Content. ...
  • Poor Performance in Cool Environments. ...
  • Non-Dimmable. ...
  • Non-Directional Lighting. ...
  • Bad Ballasts. ...
  • UV Ray Emissions. ...
  • Frequent Switching and Early Failures.

Do all fluorescent lights have a starter and ballast? ›

Some modern fluorescent lights do work without a starter because they come pre-equipped with a ballast that has extra windings. It constantly supplies a small amount of voltage to give heat to the filaments.

Why are my brand new fluorescent light bulbs flickering? ›

Fluorescent lights are known to flicker when they are first turned on as the phosphorus powers up, as well as when the bulb is dying and in need of replacement. LED bulbs, on the other hand, frequently flicker when they are not used with compatible dimmer switches designed specifically for LED lighting.

Is it cheaper to leave a light on or turn it on and off? ›

In general, the more energy-efficient a lightbulb is, the longer you can leave it on before it is cost effective to turn it off. In addition to turning off your lights manually, you may want to consider using sensors, timers, and other automatic lighting controls.

Why are fluorescent lights being phased out? ›

To prevent damaging the environment, any used fluorescent tubes must be discarded as hazardous waste. The lamps being phased out in September are due to Eco-Design Legislation designed to reduce the energy consumption and other negative environmental impacts of products.

Is it cheaper to leave fluorescent lights on or turn them off? ›

In other words, from a strict energy-conservation standpoint, it's almost always beneficial to shut off fluorescents when leaving the room—the start-up energy is offset by the power saved in even the briefest outages.

How often should fluorescent bulbs be changed? ›

But the question every light gardener eventually has to ask is: when is it time to change the tubes? Most manufacturers claim their tubes last 7,500 to 15,000 hours (compare that to 500 to 1,000 hours for an incandescent bulb).

What happens when a fluorescent bulb burns out? ›

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. None of these things should cause concern. In fact, popping and smoke means that the bulb's end-of-life mechanism worked correctly.

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