What Does Type T Bulb Mean

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.

What does type t bulb mean.

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 older t 12 tubes are 1 1 2 inches in diameter with the newer t 8 tubes at 1 inch in diameter. 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. Incandescent t series bulbs are used for appliance and showcase lighting as well as stairway and exit signs.

They show the diameter of the bulb or lamp in eights of an inch. 1 888 455 2800 fax 1 508 363 2900. The numbers and letters are abbreviations and with the knowledge of what they mean you can easily look for the light bulb you want. Find the light bulb base type you re looking for with this visual chart detailed illustrations of general bases fluorescent bases and specialty halogen base types.

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 only difference being in the numbers attached to the identifying letters. Wattage wattage is the amount of energy the light uses per hour. Fluorescent t series bulbs are used in hospitals parking garages retail outlets and offices and can be up to 8 feet in length.

The volts vary from 12 to 277 and the lengths stretch from 78 millimeters to 254 millimeters. This halogen light bulb is double ended and is commonly used as security lighting. The letter t refers to tubular shaped lightbulbs while the letter a refers to the commonly shaped arbitrary lightbulbs found in most households. 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.

Two familiar examples are t 12 and t 8 fluorescent tubes. A common j type bulb base is a recessed single contact bulb rsc and is 3 8 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. J type halogen bulbs.

Light bulbs for automobiles are made in several standardized series.