In addition to automotive lighting, wedge bases are also used in other applications such as outdoor lighting, commercial lighting, and theatrical lighting. They are a popular choice because of their simplicity, reliability, and versatility. COMPACT FLUORESCENT PLUG IN BASES The biggest light bulb base is one with a diameter between 40mm and 50 mm (E39 or E40). Which is the smallest light bulb base? For example, a T10 wedge base is commonly used in automotive taillights, while a T15 wedge base is used in some turn signal and brake light applications. Wedge bases are designed to be easy to use and provide a secure connection. They can be found in a variety of sizes and configurations, depending on the specific application.

The most common type of base is the E type. The E stands for Edison and indicates that the base is a screw type. The size is a simple millimeter measurement of the width. The screw-in bases, Edison E26 and the larger-sized E27 are usually interchangeable. The medium-sized B22d is also often used with a bayonet fitting.In North America and continental Europe, Edison screws took the place of other types of bases for general lighting. Bulbs with E12 bases are commonly used for decorative applications, such as chandeliers, wall sconces, Christmas lights, restaurant pendant lights, ornamental lights, residential or commercial string lights, and night lights. Many bulbs with these bases are designed to mimic the look of a candle flame.

You don't have permission to access "http://www.homedepot.com/b/Lighting-Light-Bulbs-Halogen-Bulbs/G8/N-5yc1vZbmg5Z1z17i4a" on this server.Like candelabra bulbs with E12 bases, bulbs with E17 bases are used for decorative applications, such as chandeliers, wall sconces, Christmas lights, restaurant pendant lights, ornamental lights, and sign or marquee lights. Bulbs with these bases are commonly used for appliance lights, such as microwave lights, refrigerator lights, and range hood lights. They’re also found in ceiling fan light fixtures. The three most often used bases in the United States of America for traditional lighting are the E12 (candelabra), the E26 (medium), and the E39 (mogul). Light Bulb Base Sizes Chart index". Osram.com. 2012-03-09. Archived from the original on April 29, 2011 . Retrieved 2012-04-25. The large E39 “mogul” base is used on street lights, and high-wattage lamps (such as a 100/200/300 Watt three-way). Chances are you won’t have a need for these guys. E26 is the size of most light bulbs used in the U.S. It’s referred to as having a “medium” or “standard” base.