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Light-bulb-base-sizes, bulbs.com. 243 stafford st. worcester, ma 01603. tel. 1 (888) 455-2800 fax 1.508.363.2900. www.bulbs.com. Bulbs.com. 243 stafford st. worcester, ma 01603. tel. 1 (888) 455-2800 fax 1.508.363.2900. www.bulbs.com, a further explanation of the light bulb base sizes, you can look at the letter-number references (e12, e17, and e26) to help understand a bulbs base style and size. the first letter designates the shape or form of the base, and the number represents the width of the base (normally in millimeters).. Take a look at our handy guide to the different types of light bulb bases that apply to many incandescent and halogen bulb base sizes and types. click on any of the illustrations to view all of the bulbs of that type offered on topbulb.com., what most people visualize when the "light bulb" goes off in their head and probably the most common type of residential light bulb is the "a" shape. common sizes of the a bulb are a15, a19, and a21. the number designation in the code is usually the width of the bulb at its widest point designated in eighths of an inch..

From indoor lamps and overhead lighting to patio lanterns and headlights, there’s an appropriate bulb for every fixture. read on for an explanation of the different options available to you, and see the chart below for a detailed illustration of light bulb base types and light bulb base sizes., e26 bulbs are primarily used in north america while e27 bulbs are most popular in europe. bulbs with these base types can be used interchangeably as there is only a 1-millimeter difference in base size. bulbs with these bases are the most popular of all screw base bulbs..

Tubular (t) bulbs come in a variety of lengths and widths. depending on their size, these bulbs can be used in applications ranging from chandeliers, wall sconces, and pendant lights to basement and garage troffer light fixtures. numbers in each code refer to the bulb’s diameter in one-eighths of an inch. t7 bulb: 7/8 = 7/8″ diameter, easy answers: the numbers in c7 and c9 are their diameters so that naturally means that c9 bulbs are larger than c7. g50’s are round bulbs and the 50 is their diameter in millimeters which is 1 7/8 inches. choose a cord based on the size of the threaded base on each bulb. c7’s use e12 cords..

E26 is the size of most light bulbs used in the u.s. it’s referred to as having a “medium” or “standard” base. e12 is the smaller “candelabra” base. it’s used for nightlight bulbs, and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors.