What Does Type T Bulb Mean

The older t 12 tubes are 1 1 2 inches in diameter with the newer t 8 tubes at 1 inch in diameter.

What does type t bulb mean.

Light bulbs for automobiles are made in several standardized series. This isn t the model number of the bulb but rather the type of bulb which is a universal standard coding system in the lighting industry. The terminology comes from t for tubular and the diameter of the bulb in eighths of an inch so t8 represents a tube of 8 8ths of an inch or 1 inch. A common a 19 light bulb is 2 3 8 inches in diameter and an r 30 flood light is 3 3 4 inches across its widest part.

Fluorescent t series bulbs are used in hospitals parking garages retail outlets and offices and can be up to 8 feet in length. Incandescent t series bulbs are used for appliance and showcase lighting as well as stairway and exit signs. Tube lights can also be compared by such factors as the power in watts and the amount of light given off measured in lumen output. This halogen light bulb is double ended and is commonly used as security lighting.

Whether you ve shopped around for smart light bulbs or just regular bulbs you ve likely come across bulbs that have something like a19 or e26 in the name. J type halogen bulbs. The letter t refers to tubular shaped lightbulbs while the letter a refers to the commonly shaped arbitrary lightbulbs found in most households. 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.

The j type bulb is available in different sizes and voltages. 1 888 455 2800 fax 1 508 363 2900. In the same family of light bulbs like incandescents the higher the wattage the brighter the light is. The volts vary from 12 to 277 and the lengths stretch from 78 millimeters to 254 millimeters.

A common j type bulb base is a recessed single contact bulb rsc and is 3 8 inch. Two familiar examples are t 12 and t 8 fluorescent tubes. They show the diameter of the bulb or lamp in eights of an inch. Wattage wattage is the amount of energy the light uses per hour.

So a t2 bulb and a t3 bulb are shaped the same way.