QA

Quick Answer: What Is The Difference Between T8 And T12 Ballast

T12 and T8 lamps also differ on the ballast that they are operated with most of the time. T12 primarily run off a magnetic ballasts and T8 bulbs operate on electronic ballasts. Even though the fluorescent light socket is exactly the same for both of them, they cannot operate on the same ballast.

Can you use a T8 bulb with a T12 ballast?

Waveform Lighting’s T8 LED tube lights feature compatibility with all ballast configurations (ballast, ballast bypass single ended, ballast bypass double ended), so they can safely be used in T12 fixtures as long as the T12 ballast is bypassed or removed.

How do I know if my ballast is T8 or T12?

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.

Can you put a T8 in a T12?

T8 tubes are simply 1 inch in diameter versus the 1.5 inch diameter of T12 tubes. 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.

What is better T12 or T8?

The smaller the lamps the more energy efficient they are. T8 bulbs use about 35% less electricity to produce the same amount of light as a T12. For some applications, one T5 bulb can replace two T12 bulbs, providing even greater energy savings (a process called “de-lamping.”)Oct 9, 2015.

What happens if you use wrong ballast?

If you use a wrong sized ballast the LRC will not be tuned so you are likely to not start the lamp at all. There is the possibility of burning out components pre-maturely also due to overcurrent and overvoltage conditions particularly if using a larger ballast on a smaller fixture.

Are T8 and T12 sockets the same?

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.

Are T12 bulbs being phased out?

In effect since July 2012, the legislation eliminates nearly all 4-foot T12 lamps, some 4-foot T8 lamps, most 8-foot T12 lamps, and almost all standard halogen PAR38, PAR30 and PAR20 lamps from the market. T12 technology is over 80 years old. Since that time, lamps and bulbs have been developed that just work better.

Are T8 or T12 bulbs brighter?

The Standard T12 lamp produces 2,650 initial lumens per lamp. The standard T8 produces 2,800 initial lumens per lamp, 6% brighter. But the standard T12 lamp produces 2,300 design lumens and the T8 produces 2,660 design lumens. Design Lumens are the average lumen output of the lamp after 40% of its rated life.

Which is better T8 or T5?

If you do not need as many lumens, the lesser wattage T8 would be the better choice since it offers lower lumen and watt consumption. If you need higher levels of lighting, the T5 might be ideal for your situation.

Can I replace my T8 bulbs with LED?

Yes, you can replace fluorescent tubes with LED tubes or LED-integrated fixtures. If you just want to replace the bulbs, you can use plug-and-play, direct-wire, or hybrid LED tubes. Plug-and-play tubes are the easiest to install as they do not require any rewiring to the fixture.

Will a T8 ballast work with T5 bulbs?

T5 lamps need special ballasts to operate. In most cases, the T5 ballasts will not work with T12 or T8 lamps, although at least one manufacturer offers electronic ballasts that can operate either T5 or T8 lamps with appropriate wiring. T5 lamps operate at frequencies greater than 20 kilohertz.

What does T8 fluorescent mean?

The “T” designation in fluorescent lamp nomenclature stands for tubular — the shape of the lamp. The number immediately follow- ing the T gives the diameter of the lamp in eighths of an inch. A T8 lamp (on the right in the figure below) is eight-eighths of an inch, or one inch (2.54 cm), in diameter.

Can I use T5 bulbs in a T12 fixture?

T5 lamps cannot replace T12 or T8 lamps because of differences in physical and electrical characteristics. T5 lamps come in different lengths than T8 and T12 lamps. A nominal 4-foot T5 lamp is actually shorter than an equivalent T8 lamp [1149 millimeters (45.23 inches) in total].

How do I know what size ballast I need?

By selecting a ballast with an ideal ballast factor, you can optimize the light output of your fluorescent lighting system and maximize your energy savings. To estimate your total system lumens, multiply the rated lumens of your lamp by the ballast factor. For example, 3200 lumens x 0.77 BF = 2464 total system lumens.

Are all fluorescent ballasts the same?

And there are two types of ballasts in each family: magnetic and electronic. Magnetic ballasts are the older ballast technology. For the fluorescent family, both T12 linear fluorescents and two-pin CFLs use magnetic ballasts. Today, most fluorescent and HID lamps operate off an electronic ballast.