Bulbs with E14 bases are popular in Europe and China for chandeliers, wall sconces, lamps, Christmas lights, restaurant pendant lights, ornamental lights, residential or commercial string lights, sign and marquee lights, and night lights. Wow. The Candelabra E12 base is the second most common bulb base which is used for smaller decorative incandescent/nostalgic bulbs. “A” type bulb shapes are standard types for household lighting but you will see different variations and types of them. The second letter designates the number of pins or contacts on the lamp. The fan/light manual suggested a B10 bulb shape with an E12 base; max-40W. Candle-flame-shaped bulbs: C7, C9, CA10, B10. 243 Stafford St. Worcester, MA 01603. Thank you SO much for your detailed explanation WITH PICTURES! But how can I tell if the bulb I am holding in my hand is an E-10, E-27, E-40? These powerful bulbs have high light output and are used to replace HID bulbs in industrial fixtures, such as high-bay warehouse lights, parking lot lights, canopy lights, and wall packs. the principles of how light bulbs are divided are, in fact, very logical. For example, there are many different bulbs that are the same shape and even have similar looking bases, but those bases might be different sizes. All of the bulbs in these groups resemble the shape of a candle flame and are often referred to as candle bulbs. What are PIR Lights and Where They are Used? As for the diameter and length, the categorization is a lot more simple. In an incandescent or halogen screw base light bulb, two contact wires link the filament to the base where the electrical voltage is connected to the bulb. The main shape designations of light bulbs are: Light bulb shapes. Screw in bulbs use a base called an Edison Screw or ES base. This base was developed by Thomas Edison for the first light bulbs and is still in use today. Samantha is a copywriter/blogger at Super Bright LEDs, Inc. She graduated from the University of Missouri with a bachelor's in journalism and currently lives in St. Louis with her husband. Reviewing solar products since 2013. The A means Arbitrary Shape and the 19 means … Light Bulb Shapes Types Sizes – Identification Guides and Charts Read More » Keep up the good work. What is Full Spectrum Lighting and What are its Advantages. Filament configurations such as the C13D (coiled, zig-zagged) emit far more light perpendicular to the zig-zag than parallel to it. The most common screw base sizes are E5, E-5, E10, E-10, E11, E-11, E12, E-12, E14, E-14, E17, E-17, E26, E-26, E27, E-27, E39, E-39, E40 and E-40. Of course, such a variety of shapes and sizes can be not only overwhelming but even confusing, yet, the principles of how light bulbs are divided are, in fact, very logical and you will get the whole picture once you learn about all the possible types. Your email address will not be published. Most packaging for fan bulbs do not provide all the specifications needed or provide enough detail to make a purchasing decision. For example, C9/E17 means that the bulb is a C9 shape with an E17 base. They are commonly used for general lighting in standard light fixtures, such as ceiling lights, lamps, can lights, outdoor spotlight and flood light fixtures, and vanity lights. Shop by screw base with our Universal Bulb Finder E26/E27 Medium – Edison 26-mm or 27-mm Diameter. Intermediate: E17 North America, E14 (Small ES, SES) in Europe. Since light bulbs have different base types, if you know the base of the bulb you are looking for, we can omit the bulbs that do not have that base type. B-shaped bulbs are also known as Candelabra bulbs. None of them have any base designation on box or bulb. Bulbs.com. E27 Medium A little larger than the common E26 medium base, this bulb base can still be used in most applications. When thinking about the image of a typical bulb, most of the people picture that one sort of bulb many of us have been using all our childhood. The intermediate E17 base is not very common. E39 bulbs are primarily used in North America while E40 bulbs are popular in Europe. Bulbs with these bases are the most popular of all screw base bulbs. The first letter designates the shape or form of the base, the numbers represent either the width of the base or the distance between the pins. household), namely:eval(ez_write_tag([[970,250],'ledwatcher_com-box-4','ezslot_1',129,'0','0'])); A-shaped bulbs. Screw-base bulbs, often called Edison bulbs, are named after their inventor—Thomas Edison. The naming conventions include terms like medium base and candelabra base. Is an E26 bulb the standard base size? Most light bulbs used in the home use an Edison Screw Base. Note, as a rule of thumb, traditionally C9 bulbs “always” have E17 bases so many times, the base is also referred to as C9 as well. Blogger, editor, developer who loves green living. This post covers screw bases. If you do not see the base type you are looking for, give us a call at 800.784.1998, and we can help you locate the correct bulb. Each of the base types work differently as their main function is to connect the light bulb to the electrical voltage and the technology of how it is achieved is different in each case. Tel. Most CFL and LED replacements for incandescent lights will use the "E" base. It’s most likely E26 which is the most common base. The respective parameters (shape, size and base type) appear on the package of the product. Thank you again SO much for writing such a great and in-depth article! The numbers refer to base width in millimeters. So we had to just buy multiple bulbs to see which ones would fit. This prevents their use in a luminaire that may have a higher wattage, distribute intense heat, and even become a fire hazard. C7 bulbs have E12 Candelabra bases while C9 bulbs have E17 Intermediate bases. Specialty Christmas Bulbs. An E26 bulb, therefore, is any bulb or lamp that utilizes the E26 cap or base for mounting and electrical contact. This is the most common light bulb base that you can buy and is used in HID, CFL, CCFL, halogen, and incandescent light bulbs. First you have to determine if it’s a screw, bayonet, wedge, or bi-pin base. Each bulb base should be paired with a light socket of the corresponding size. ER – Extended reflector light bulb shape; K -Krypton or narrow reflector light bulb shape; PS – Elongated standard incandescent bulb. 115-volt airway beacon light bulb with a Mogul bi-post base With bi-post bases, the lamp orientation is fixed so that the filament will always be in the focal plane. LED Downlights: Crisp Illumination for Commercial and Home Applications, Planning for an LED Landscape Lighting Installation, Green LED Lights: Therapy for Migraines/Chronic Pain, How to Make a DIY Christmas Wreath With LED Strip Lights, How to Create Your Own LED Light Fixture: Aluminum Channels, Four Ways to Brighten up Your Thanksgiving. The principle of pin base bulbs differs significantly from screw base lamps. Coronavirus (COVID-19) Update: Bulbs.com is committed to health and safety. Bulbs with these bases are commonly used for appliance lights, such as microwave lights, refrigerator lights, and range hood lights. E26 bulbs are primarily used in North America while E27 bulbs are most popular in Europe. This is designated by the "E" in the first letter of the base description. Click on any of the illustrations to view a list of bulbs with that light bulb base. Light bulbs come in a variety of shapes and sizes and are generally categorized by their bases (the part that screws into a light socket). Screw bases are the most common light bulb base. Our bulbs can be no longer than 3.25 inches in order to cant them sideways and then insert the bulb base into the receptacle to begin screwing down and into the receptacle. The bulbs of this shape are very wide-spread in chandeliers, night lights, and lower wattage applications. Pin bases are mainly used in linear fluorescents, plug-in compact fluorescent bulbs, MR16s, and a few types of HID light bulbs. Most standard screw-base light bulbs—such as the GE 60 watt incandescent light bulb—are "A" bulbs. You might also hear them referred to as Edison base light bulbs. However, only three of all the shapes are widely used for everyday purposes (e.g. My wife and I have installed new outdoor ceiling fans which require special candelabra bulbs. However, the standard bulb sizes are A19 and A60. Your email address will not be published. When searching for replacement bulbs, we were having a difficult time finding the right type and especially size that would fit between the bulb base, and the metal soffit above the base. Look at your fixture to determine its base type. The most familiar is the Edison screw base found on most incandescent bulbs and many halogen, compact fluorescent, HID and now LED bulbs. You can determine it by measuring the diameter of the base (the thickest parts). PAR light bulbs use a parabolic mirror that focuses all the light. Use this handy guide to identify different types of light bulb bases that apply to incandescent, halogen, high-intensity discharge, fluorescent, and LED light bulbs. Save my name, email, and website in this browser for the next time I comment. When she's not immersing herself in all things LED, she's zumba-ing or playing with her two little troublemakers (chihuahuas)! Bulbs with these bases can be used interchangeably as there is only a 1-millimeter difference in base size. That usually is listed somewhere on the bulb as well as on the packaging. Why is it good to know this? Your article had the MOST detailed and definitive information in one place for us to understand the many different light bulb shapes, sizes, and bases. Many bulbs with these bases are designed to mimic the look of a candle flame. Source – http://greenlivingideas.com. Indeed, many lamps have their own unique base. There are tens of unique bases for light bulbs. There are four commonly used thread size groups for lamps: Candelabra: E12 North America, E11 in Europe. In its root meaning, though, this is what it is: an object shaped like a flower bulb which produces light. The bulbs have right-hand threaded metal bases (caps) which screw into matching threaded sockets (lamp holders). B and C-shaped bulbs. The common terms are medium, intermediate, candelabra and mogul. A-shaped bulbs: A19, A15, A21 BR (bulged reflector… Different LED bulb shapes. 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. To save the most energy, choose the bulb with the lowest wattage suitable for its … 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. You might also hear them referred to as Edison base light bulbs. Tags: cfl bulbshalogen bulbshid lampshigh pressure sodium vapor lampsled bulbsmetal halide lamps. Light Bulbs, also known as lamps in the industry, come in a vast variety of sizes, shapes, and temperatures (colors) to allow for an array of fixtures, which need different bases … The main diameter classifications are: As for the length, the bulbs are divided into S (short) and L (long) categories but not always you will see the length indicator mentioned in the product description. Unlike in the case of the light bulb shapes, the number in the light bulb base indicates the light bulb base diameter in millimeters, for instance, the candelabra E12 has a diameter of 12 millimeters. The most common of PAR lamps are PAR20, PAR30, PAR38 and PAR42 type of bulbs; nevertheless, those are just a few of the types available. So a bulb with an E26 base is 26 millimeters. The mogul pre-focused (MPF) base is similar to the screw base in that it connects the filament to the base with two soldered … Medium – Standard base code: E26 In North America and Europe, these light bulb base types are the most common and widely used. LED bulbs with these bases typically have a cylindrical shape like ED and BT HID bulbs. It’s the traditional A-type bulb. Which Type of Light Bulbs Should be Considered Eco-Friendly? It is used in most incandescent, halogen, CFL, CCFL, and HID light bulbs. This guide is organized by series, with information about other common names, sizes (including light bulb size charts for each series), typical uses, and popular caps and bases. However, bulbs have been evolved significantly and now you have them in numerous categories divided by shapes, sizes and base types. For bulbs powered by AC current, the thread is generally connected to neutral and the contact on the bottom tip of the base is connected to the "live" phase. The cap or base of a light bulb joins the bulb to the lamp socket in order to provide an electrical connection. The mogul E39 base is found in larger sized light bulbs, such as high wattage HID. 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. Modern light bulbs can be used in a variety of fixtures, and each fixture has its own particular requirements of size and shape of the bulb that it is compatible with. While the numbers indicate the diameter but the optional letter indicates the length of the bulb. If you're looking for a more unique light display outside of traditional C7 & C9 Christmas lights, consider these specialty LED bulb options. Source – http://www.bulbs.com. Your lamp or fixture’s socket will dictate which cap or base a light bulb needs in order to fit, but there are a number of different base types and sizes to choose from, and it’s not always easy to determine which type is right for your fixture. The first letter designates the shape or form of the base, and the number represents the width of the base (normally in millimeters). Pay close attention to lumens, since this number indicates the brightness, or light output, of the bulb. Electrical current then can pass through the pins and flow into the light bulb to excite the filament and produce light. The B and C groups: B10, C7, C9, C15, CA10. This article will briefly cover each category and provide you some useful information so that you actually know which type of bulb you need for different situations and fixtures. This normally is in the form of letters followed by a number followed by an optional letter. A normal household light bulb is on average a 60 watt light bulb. 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