That s not always the case as sometimes people changed their t12 ballast to be electronic years ago.
T8 bulbs t12 ballast.
Difference between t5 t8 t12 tubes what is the difference between t5 t8 and t12 lamps.
A t12 ballast is a reference that essentially refers to the size of the tube of the florescent bulb that is being used.
If a t12 and a t8 use the same bi pin base you can use them interchangeably with the same light fixture as long as you double check the milliamp ma requirements of the ballast if one is present.
A t8 has a one inch diameter t5 has a 5 8 inch diameter and t12 is a 12 8 inch or 1 5 inch diameter.
The t12 fixtures tended to use magnetic ballasts.
The t8 tubes are slightly smaller at 1 inch in diameter compared to the 1 5 inch diameter of t12 tubes.
The higher frequencies produced by an electronic ballast create 10 to 12 percent more light output than the magnetic ballast operating a t12 lamp at 60 hertz.
The type of existing lamps the following are some examples.
Fluorescent lamps or fluorescent linear tubes as they are also known are categorized according to their wattage shape and diameter.
The t in t5 indicates the bulb is tubular shaped while the 5 denotes that it is five eighths of an inch in diameter.
T8 and t12 both feature the same g13 bi pin connector.
When posing the question can a t8 light work on a t12 ballast the short answer is no.
Wiring a t12 fluorescent fixture for a t8 energy efficient ballast.
The t8 lamp uses an electronic ballast that produces 265 milliamperes as opposed to the 430 milliamperes magnetic ballast used on t12 lamps.
T12 primarily run off a magnetic ballasts and t8 bulbs operate on electronic ballasts.
The following must be identified to select the correct energy efficient electronic t8 ballast to replace a t12 magnetic ballast.
Converting a fixture from a t12 ballast to a t8 ballast.
T8 fluorescent bulbs are just as bright as the t12 and much more economical.
But most people have them operating on a magnetic ballast.
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Do t8 led bulbs need a ballast.