The ballast takes in electricity and then regulates current to the bulbs. A typical ballast will generally last about 20 years, but cold environments and bad bulbs can decrease this lifespan significantly. You can get a new ballast at a hardware store or home center and install it in about 10 minutes.
How do you know when a ballast goes bad?
If your fluorescent lighting is displaying any of the signs below, it could be a symptom of a bad ballast:
Flickering. Buzzing. Delayed start. Low output. Inconsistent lighting levels. Switch to an electronic ballast, keep lamp. Switch to an electronic ballast, switch to a T8 fluorescent.
Are all fluorescent light ballast the same?
Types of fluorescent ballasts
Fluorescent ballasts use three different types of starting technologies: rapid, instant, and programmed.
How do I know if I have a T8 or T12 ballast?
If no markings are available, the size in diameter of the tube is the easiest way to determine the type you have installed. T8 tubes are 1-inch in diameter and T12 tubes are 1 1/2 -inch.
What’s the difference between T8 and T12 ballast?
The main difference between T8 and T12 tubes is the tube’s diameter. T12 tubes are 1.5″ in diameter while T8s are just one inch. All other things—socket sizes, lengths, distance between pins—are the same. T8 LED tubes won’t fall out if you try to install them in a T12 fixture—they’ll fit just fine.
How do you change a ballast without turning off power?
Remove the wire nut from one of the power wires and carefully strip about 1/2 inch of insulation from the end, making sure not to touch the end. Hold the ballast wire next to this wire with the stripped ends parallel but not touching. Quickly slip on the wire nut and screw onto the ends.
How much does it cost to replace a ballast?
A replacement ballast costs about $10-25 depending on capacity and brand. The bite is that an electrician trip charge (which includes 30 or 60 minutes work) is going to be $75-150 probably – for about 5 minutes work on each light fixture.
How do I know if its the ballast or bulb?
Take out your current bulbs and replace them with the new bulbs. If the bulbs fail to light up, then 9 out of 10 times the ballast is culprit. You could also try using a multimeter set to measure resistance.
How long do fluorescent ballasts last?
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.
Why do fluorescent lights not turn on sometimes?
If a fluorescent tube neither lights nor flickers when switched on, first check to see that the fixture is plugged in and that no fuse has blown or circuit breaker has tripped. If this does not help, try wiggling the tube gently in its sockets by rocking it back and forth and from side to side.
What are the two types of ballast used in fluorescent lighting?
There are two basic types of fluorescent ballasts: magnetic (low frequency) and electronic (high frequency). Most fluorescent ballasts are now electronic, which are more efficient than magnetic ballasts.
What do the letters on a ballast mean?
The most common types are T12, T8, and T5. The T stands for tubular and the number indicates the diameter in 1/8 of an inch. Lamp diameter is determined by ballast type. A fixture with a T12 ballast must use a T12 bulb. A fixture with a T8 ballast must use a T8 bulb, etc.
What is the difference between magnetic and electronic ballast?
Magnetic ballasts work at a frequency of around 60 Hz, whereas electronic ballasts work at an increased frequency of around 20,000 Hz. This is why fluorescent lamps using electronic ballasts do not flicker or emit any buzzing sounds. Electronic ballasts are also quite smaller in size and weight.
Can you put a T8 in a T12 fixture?
In terms of physical compatibility, both T8 and T12 lamps use the same G13 bi-pin base, so as long as they are the same length (e.g. 4-ft), a T8 lamp will physically fit inside a T12 fixture.
Can I use electronic ballast on T12?
Have you tried to order T12 fluorescent tubes lately? While we still have plenty in stock in our online store, manufacturers are producing less overall. The product has also changed. These days, most T12s will work with an electronic ballast instead of a magnetic ballast.
Can I use a T8 LED tube in a T12 fluorescent fixture?
In an effort to make LED tube lights compatible with the internal dimensions of most fixtures, you will find that most LED tube lights feature a T8 or 1 inch diameter. They can indeed be used in T12 fixtures.
