What Does Type T Bulb Mean

A type t halogen light bulb is a halogen bulb bearing a tubular shape.

What does type t bulb mean.

So a t5 is 5 8ths of an inch a t8 is exactly one inch thick i e. For instance a t3 bulb is a tubular halogen bulb which has a diameter measuring 3 8ths of an inch. T simply means tubular and the numbers indicates the diameter of the tube. The t acronym is a standard for expressing the measurement of the diameter of the tube in 1 8ths of an inch.

So now that you know what the letters mean the numbers can be just as confusing. The j type bulb is available in different sizes and voltages. Basically though the number corresponds to the bulb s diameter at its widest point. A t stands for tube or tubular this is the shape of and the designation for a standard straight fluorescent light bulb though it is also clearly not a bulb in shape but rather a tube.

T type halogen bulbs feature the letter t to indicate their tubular shape followed by a number which specifies the tube s diameter in eighths of an inch. The only difference being in the numbers attached to the identifying letters. The letter t refers to tubular shaped lightbulbs while the letter a refers to the commonly shaped arbitrary lightbulbs found in most households. Unlike other bulbs that contain argon or nitrogen gases in the envelope surrounding the filament these longer lasting bulbs bear gases from the halogen group that blend effectively with the tungsten atoms for increased output.

The way it s measured however is different for the bulb s size and its base size. What the numbers mean. 1 888 455 2800 fax 1 508 363 2900. Other examples of common t type bulbs include t4 t6 t7 t8 and t10.

The volts vary from 12 to 277 and the lengths stretch from 78 millimeters to 254 millimeters. Andreas schlegel getty images. The spiral light bulb is the shape of a compact fluorescent light bulb. A common j type bulb base is a recessed single contact bulb rsc and is 3 8 inch.

Bulbs used for headlamps turn signals and brake lamps may be required to comply with international and national regulations governing the types of lamps used other automotive lighting applications such as auxiliary lamps or interior lighting may not be regulated but common types are used by many automotive manufacturers. Light bulbs for automobiles are made in several standardized series. This is also why the electrical trade uses the term lamp instead of light bulb. A smaller diameter fluorescent t light bulb such as t4 t3 t2 or t1 is twisted into a spiral or coil configuration in order to provide the most amount of light output in the least amount of space.

J type halogen bulbs.