The A19 is the most commonly used A … Now, a bulb’s power is usually measured in lumens. As we have already established, the A21 bulb can have a higher lumen level since it has a bigger space for better heat dissipation. This category only includes cookies that ensures basic functionalities and security features of the website. Lumen refers to the illuminating power a bulb emits when you turn it on. [Google Nest VS Ecobee Thermostat In 2021], SmartThings Hub V2 VS V3: Which Samsung Smart Home Hub Should I Buy? 9W LED bulb replaces 60W bulb. And in millimeter, it is 78.5 mm in diameter and 139.7 mm in length. This number represents a bulb size in diameter. In comparison with measurement A21 light bulb is more longer than the A19 light bulb. Although the size of A21 does not make much of a difference, it may not fit in some fixtures. We also use the website to answer various questions that you may have regarding LED lights. It stands as a standard for the bulb types. But, first of all, you need to decide whether you need an A19 or an A21. It is mandatory to procure user consent prior to running these cookies on your website. These cookies do not store any personal information. These A-shape bulbs have a standard medium base that you can screw into ordinary residential light sockets and table lamps. The letter A in these bulbs denotes the shape, while the numbers following it denote the diameter at the widest point. So, they too have a 360 degrees distribution of light. It has an E26 light bulb base, which is a medium, light bulb base size considered to be the standard base size in the US. On the other hand, the A21 bulb has larger dimensions of 2.6225 inches in diameter and 5 inches in height. Dimension – A21 Bulb On the other hand A21 light bulb has larger dimensions of 2.6225 inches and a length starting from 4.1 to 5.4 inches. Other sizes with a data sheet in IEC 60064 are A50, A55, A67, A68, A71, A75, and A80. A19 bulb is 2.375 inches in diameter (19/8=2.375) and 4.13 inches in height, while an A21 bulb is 2.625 inches (19/8=2.375) and 5 inches in height. You can get the ‘A’ size bulbs in 60 Watt, 75 Watt, 100 Watt, 125 Watt, 150 Watt, and other equivalent power ratings. As a buyer, you may not really see the significance of differentiating the two, but it will help if you know the pros and cons of the A19 vs A21 bulb. As far as the distribution of light is concerned, both A19 and A21 have the same efficacy. The A19 and A21 are pear-shaped LED bulbs that offer a popular alternative to incandescent bulbs. Last update on 2021-01-10 / Affiliate links / Images from Amazon Product Advertising API. Because A-shaped bulbs have so many applications, there is sure to be one that fits your needs. In fact, it can be less than 5 years. The A21 light bulbs also don’t come with reflectors. However, further examination of the bulbs will show you that there is a slight difference in the size of the bulb head. Although A-shaped lamps are similar, the difference is in size. Common sizes of the A bulb are A15, A19, and A21. They get warmer in tone as the light gets dim. So the light bulb that most of us have used in our homes here in the States is an A19 bulb with an E26 base. For the most part, A21 bulbs that have added lumen power in it will really result in a higher energy bill. Is e26 the same as a19? Read the full disclosure. This website uses cookies to improve your experience. Lower Kelvin color temperatures give you a warmer, more yellow light while higher Kelvin color temperatures will give you a cooler, bluer light. In 2013 we were celebrating when … Now that we understand the uses of BR30 vs BR40 bulbs, let's talk about the pros and cons of choosing LEDs for your light … We will help you for sure. The A19 light bulb has a radius of 1.2 inches or a diameter of 2.4 inches. To tell the difference between one A-shaped bulb and another, the bulbs are classified based on their diameter. So, this was a detailed comparison of A19 VS A21 from our side. Larger rooms need larger bulbs and smaller rooms need smaller bulbs. The A21 is larger in length and diameter compared to the A19. That’s why you need to familiarize yourself with these two common bulb sizes. A19 vs. A15 vs. A21 vs. A23. These cookies will be stored in your browser only with your consent. As already mentioned earlier, A19 and A21 refer to the size of the bulb. Philips Hue White E12 candle bulb (Bluetooth + Zigbee) Learn more. If you buy an item via links on this page, we may earn a commission. If you need brighter light, you may need to use 100 Watts incandescent bulbs. [Comparison In 2021], Ecobee 3 VS Ecobee 4: Compare Ecobee Models In 2021 [Which One’s the Smartest? There are a lot of similarities between A19 and A21 LED bulbs. Therefore, it is a good idea to make sure that the fixture in your house will be able to accommodate the A21 bulbs. These fixtures usually attach 40 to 60 Watt incandescent bulbs. If the bulb is small compared to the size of the room it will not produce enough lighting. The only difference between them is in size. The A19 has a diameter of 2.375 inches and a height of 4.13 inches. If you are looking for replacing the CFL or Incandescent bulbs in your house, you can well go for either an A19 or an A21. For illumination to be appropriate, the size of the bulb should be commensurate with the size of the room. HowToTechh provides How-to tutorials and guides related to gadgets, softwares, games and everything related to technology. Even though the main difference between the two is really the size, the overall size of the bulb may actually affect the power, as well as the energy consumption of the bulb. In other words, they come from the same shape type but differ in size. [Nest Thermostat Comparison in 2021], Nest E VS Ecobee3 Lite: Which One’s Better? – About Us – Contact Us – Privacy Policy – Amazon Affiliate Disclosure. Q3. While size may be the main and most obvious difference between the two bulbs, they also have a difference in power. This is especially true for LED lights of these sizes since LED lights are extremely powerful. We also use third-party cookies that help us analyze and understand how you use this website. The most commonly used A-series light bulb type is the A19 bulb which is 2 3 ⁄ 8 inches (60 mm) wide at its widest point and approximately 4 3 ⁄ 8 inches (110 mm) in length. Bulbs with a higher dimension can also better contain the heat generated. LEDs t… A21 light bulbs are lesser known than their extremely popular counterpart - the A19 bulb - and are more commonly used for higher light output applications. Both the light bulbs have the same base size. An A19 bulb, therefore, has a diameter of 19 divided by 8 inches, or approximately 2.4 inches. Should you get an A19 or an A21 bulb? Now that you know the differences between the two, you might be asking if there are any significant similarities that we need to take note of. Another common A-series light bulb type is the A15 bulb which is commonly used for appliances and ceiling fans. It has a larger dimension which means that it can manage the heat generated well and also distribute the light over a wider area. KRM Light+ has grown to become the leading LED lighting resource center in the US. High wattage A19 bulbs are more complicated. Direct Replacement LED bulbs to replace incandescent, halogen, and CFL lamps. You may not know it, but size plays a huge role in bulb and socket compatibility. 3000 Kelvin bulbs are similar in appearance to halogen lamps. Select Page. However, you may want to take note that this sort of power also comes with a price– energy efficiency. Epson 7710 VS 7720: Which WorkForce Printer is Better in 2021? If you prefer the cool white light of clear metal halide lamps, look for an LED A19 with a color temperature of 4000 Kelvin. Another common A-series light bulb type is the A15 bulb which is commonly used in the US for appliances and … An A19 of high wattage is often more complicated and may not last long due to extreme heat generation. Besides, they are quite different in power. Additionally, KRMLight.com participates in various other affiliate programs, and we sometimes get a commission through purchases made through our links. In millimeters, it has a diameter of 78.5 mm and a length of 139.7 mm. However, it is based on an assumption that you would light it only for say 3 hours a day. 9A19/927/277V - 800 Lumens - 92 CRI - 60W Incandescent Equivalent - 240° - 120-277V. This is the common base size for light bulbs in the US. Another feature of the oblong globe shape is the increased strength, allowing it to hold a vacuum; an essential element to the incandescent lamp. At NLI, we stock nearly all voltages, wattages, and sizes including A15, A19, A21, and A23. A21 Bulb The A21 light bulb has a diameter of 2.6 inches, and a length of about 4.1 to 5.4 inches. (And Reviews), T3 500W Halogen Bulb LED Replacement (Quick Guide), LED Replacement For Halogen T3 (Quick Guide), How to Cut, Connect & Power LED Strip Lights (Quick Guide), How to Change the Color of an LED Light - Quick & Easy, The Best H7 Bulb For Car Headlights (2020 Guide). Naturally, because the A19 and the A21 Led light bulbs last for so much longer, they will cost more than the traditional light bulbs. From garden solar LEDs, to security lights. The A21 bulb has adequate capacity to house higher-lumen LEDs due to its ability to get around the heat issues that a… The A19 and A21 lamps are usually blended due to their similar characteristics. The A21 looks much like the A19, and both can be attached to many of the same fixtures. Let us know your experiences in our comments section below. That’s why you can pretty much use either one for residential purposes like table lamps, ceiling fan lights, basement lights, and the like. Taking note of these small things will really be able to help you understand more about your lighting system in the long run. Light bulb size: A17, A19, and A21. This can definitely light up a medium-size room effectively. The “A” shape bulb was one the earliest bulb designs and it remains popular among homeowners until now. These A-shape bulbs have a standard medium base that you can screw into ordinary residential light sockets and table lamps. Distribution of Light: A19 VS A21 Bulb, Difference Between A19 and A21: Conclusion, Amazon Basics 100W Equivalent, Daylight, Non-Dimmable, 15,000 Hour Lifetime, CEC Compliant, A21 LED Light Bulbs | 6-Pack, Great Eagle A19 LED Light Bulb, 9W (60W Equivalent), UL Listed, 4000K (Cool White), 750 Lumens, Non-dimmable, Standard Replacement (4 Pack), Want to Android Cast Screen To TV Without Chromecast? The “A” shape bulb was one the earliest bulb designs and it remains popular among homeowners until now. The larger the surface area the greater is the spread of light. Phone: 602-298-7076 Email: [email protected], Hours Mon — Fri: 9:00am – 5:00pm Saturday – Sunday: 11:00am – 3:00pm, A19 Bulb Vs E26 Bulb: What’s the Difference? Obviously, an A21 bulb will be able to produce a higher number of lumens as compared to an A19 sized one because the A21 bulb has a bigger space for heat dissipation. Brand: Green Creative Part No: 9A19/927/277V Order Code: 98562 Weight (lbs): 0.15 Length: 4.45" UL … Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. A17 light bulb has 2 ⅛ inches in diameter, A19 2 ⅜, A21 2 ⅝ inches. HowToTechh is reader-supported. The term A21 is used to describe the overall shape and dimensions of a light bulb. Distribution of light is an important measurement of the efficacy of a light bulb since LED bulbs illuminate evenly. This makes the A21 suitable for lighting up bigger rooms. A19. Aside from the shape, they both use the same type of base for the socket. Green Creative 98562 - 9W LED A19 - 2700K. A typical A19 is 2.375 inches in diameter (19/8 = 2.375) and 4.13 inches in height, while an A21 is 2.625 inches in diameter (21/8 = 2.625) and about 5 inches in height. Hence, for those who are very particular with the numbers, you really have to take note of these small details. So, if you’re looking for a strong bulb for let’s say, your basement, your lamp, or a big living room lamp, then you might want to use A21 bulbs for these purposes. Want to know the difference between shunted and non-shunted socket? Everyone loves LEDs, but believe me when I say that not all LEDs are the same. For example, an A19 is 2.375 inches in diameter (19/8=2.375) and 4.13 inches in height while an A21 is 2.625 inches in diameter (21/8=2.625) and 5 inches in height. If you’ve found yourself in the market for new lightbulbs recently, you’ve likely faced what seem like infinite options. So the internal electronics of A21 have to work under less heat compared to that in A19. Dimensions of an A19 bulb By definition, an A19 bulb has a diameter of approximately 2.4 inches. [A How-To Tutorial]. Measuring in millimeters, it is 78.5 mm in diameter and 139.7 mm in length. So, as you can see, it is clear that A21 has a slightly longer neck and diameter than A19. The name A21 consists of two parts - the first letter and the two digit number. If you’ve gone over to the light bulb section at the hardware store, you’ve probably seen bulbs with sizes like A19 or A21. For example, though you could find one A19 bulb that is 4” long and another that is 3”, both would have the same diameter. Comparing the two types of bulbs means that you need to compare the a19 vs a21 bulb shape. A3. Moreover, comparing the buyers’ experience always adds teeth to the review. Read HERE! A19 vs A21 Light Bulbs Comparison and Buyer’s Guide by Alex Norman | Last Updated: December 15, 2020 So many types of bulbs, so little time to choose a perfect one. The reason it's useful to know both the shape and base is because you can't just ask for one of these and get the bulb you're looking for. The A-shape LED bulbs can mitigate this problem and produce brighter light at lower power consumption. White and color ambiance. A2. Do these bulbs really last long; like say 10 years? A19 can fit into the A21 lamp holders, but not the other way around. To start it off, it is first important to know what is a19 vs a21 bulb. But opting out of some of these cookies may have an effect on your browsing experience. However, in case you are planning to fit the bulb into the lamp holder, you cannot interchange the two. A21 Bulb Dimensions So, the light emitted by them travels in all directions, i.e in a 360 degrees angle. quick view full details. You can find LED bulbs that fit that description here, or other types of bulbs here. HowToTechh  is a participant in the Amazon.com Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon(.com, .co.uk, .ca, etc) and any other website that may be affiliated with Amazon.com Services LLC Associates Program. These bulbs have the same pear shape, but different sizes. We'll assume you're ok with this, but you can opt-out if you wish. So, if you are not going for dimmable lights, there is less chance of hearing any buzzing sound. The A19 has a diameter of 2.375 inches and a height of 4.13 inches. So, if you are keeping it switched on for 6 hours or more, it is not going to last 10 years. So an A19 is an A shape bulb and is 2.375 inches in diameter (19 divided by 8). Just to give you an idea, the A refers to a standard size type of lightbulb that is used for most homes. So, let’s get down to a comprehensive comparison of A19 and A21. Check out the differences between an a19 vs a21 bulb first with our comparison guide, so you’ll know which suits you. It has a diameter of 2.6 inches and a length of 4.1 to 5.4 inches. This is slightly longer than the A19. Since they have the same base, you may be thinking that it won’t really make a difference choosing between the 2 since they can be used interchangeably anyway. The only thing you need to see is that for table lamps A19 is a better option. So, which one did you choose for yourself? Cheap LEDs often lack brightness, emit uneven light, lose power over time or break entirely. So, the degree of distribution of light measures how far the light bulb can effectively illuminate. A19 vs. A21 Product Dimensions The A19 measures around 2.375 inches in diameter and 4.13 inches height, whereas the A21 bulb comes in at larger dimensions, 2.6225 inches wide and 5 inches height. From top left to bottom right: A19 LED filament bulbs in ceiling fan fixture, A21 LED bulbs in bedroom lamps, A19 gold-tint LED filament bulb in porch light fixture, A19 LED fireworks bulbs in string lights Standard/arbitrary (A) bulbs are the most widely used and thought of when it comes to household lighting. We at “HowToTechh” help our readers to stay updated with technology at their best. Most LEDs claim to have a lifespan of 10 years. You just need to ensure the right wattage to light up a given area. For all other usage you can go for any of the two. That said, the more energy-efficient option would be the A19 bulb. Our editorial content is not influenced by commissions. The A19 and A21 are pear-shaped LED bulbs that offer a popular alternative to incandescent bulbs. Now, a bulb’s power is usually measured in lumens. Nevertheless, you can get these bulbs in higher wattage of 100, 125, or 150 Watt. Since most A21 bulbs these days are packed with power, you may want to reconsider using them if you don’t need such strong lighting and if you want to save money. This bulb produces a dimmable warm white light (2700K) that is ideal for all rooms. KRMLight.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. On the other hand, the A21 bulb has larger dimensions of 2.6225 inches in diameter and 5 inches in height. This too can effectively light up a medium-size room. On top of that, it's fairly safe to say that Philips Hue White A19 is a more popular led bulb, based on its reviews. KRM Light+ is here to help you make an informed choice on all your LED light needs. While size may be the main and most obvious difference between the two bulbs, they also have a difference in power. Most A19 bulbs in the States will have an E26 base, but there are … Part #:104085. The higher the width the larger is the surface area. You need to consider the measurement of the base of the light bulb as this will help you decide whether the existing lighting fixture will fit the bulb or not. A2. This is the pear-shaped type of lightbulb that uses an E (Edison) sized base. This website uses cookies to improve your experience while you navigate through the website. If ever you’re curious about the two types or if you just want a deeper understanding of them, then always keep our comparison guide in mind. To answer the question about whether A19 and E26 bulbs can be the same or not, YES they can. Similarly, the length of the light bulb is 3.9-4.3 inches. The most commonly used A-series light bulb type is an A60 bulb (or its USC equivalent, the A19 bulb), which is 60 mm (19/8 in or 2 3/8 in) wide at its widest point and approximately 110 mm (4 3/8 in) in length. A19 vs A21 Bulb – A Quick Guide; Best Work Light For Mechanics; Best Ring Light For Streaming Reviews; Best LED Fog Light Bulbs Reviews; Related Posts: A19 vs A21 Bulb - A Quick Comparison Guide; Wifi Light Bulb Security Camera Reviews (Reliable… The Best Flagpole Light (Reviews and Guide) Best Softbox For Speedlight Reviews (and Tips) Best Solar Step Lights To Buy (Reviews and Guides) Night … Because of this bigger size, manufacturers actually tend to make stronger lights of up to 100W using this size of the bulb. What exactly is the difference between these two sizes and how does the size difference affect how you choose anyway? See more…. a19 bulb vs a21. However, the degree of distribution is the same for both. From a distance, there may not seem to be any differences between the A19 vs A21 bulb. KRM Light+ is the number 1 resource for LED light reviews, we are here to help you make an informed choice on all your LED light needs. The dimensions in millimeters are 112.7mm in length and 69.5mm in diameter. The A19 A21 Bulb Dimensions Are As Follows: The Brightest Handheld Spotlight: Reviews & Buying Guide, 4 Best Solar Lights Consumer Reports 2020, Best Light Bulbs For Bathroom Vanity 2020, Great Eagle A19 LED Light Bulb, 60W Equivalent, LOHAS 150W-200W Incandescent Bulb Equivalent, LOHAS 150W-200Watt Equivalent LED Light Bulbs. LED bulbs around 2700 Kelvin will be the closest match to what you're used to seeing with incandescents. Incandescent bulbs do produce brighter light, but they are neither environmentally friendly nor pocket friendly. If it is large compared to the room, it would appear too bright. Save up to 85% on your energy bill – Energy efficient 9 watt LED bulbs to replace your 60 watt bulbs for immediate savings now! The A21 bulb measures 2.6 inches in diameter and between 4.1 and 5.4 inches in length. While comparing the two types of bulbs we need to take into account features like dimension, base size, degree of distribution of light, etc. That’s the most obvious difference between these two products. Comparison between A15, A17, A19, A21, A23 light bulbs by their dimension. Necessary cookies are absolutely essential for the website to function properly. Why Transparency is so Important for Supply Chains? You also have the option to opt-out of these cookies. The number that follows the "A" within the A series indicates the width of the bulb in one-eighth inch units or in millimeters. A19 VS A21: Light Bulb Offer a Popular Alternative.The A19 and A21 are pear-shaped LED bulbs providing a common alternative The A21 looks much like the A19, and both can be attached to many of the same fixtures. While this is actually true to a certain extent, knowing the differences between an A19 vs A21 bulb will help you work around heat dissipation issues, as well as energy efficiency issues. We offers various kinds of information about LED light bulbs that you would need if you want to install them in your home. The A15 bulb is 15 ⁄ 8 in (1 7 ⁄ 8 in; 48 mm) wide at its widest point. Long Lasting - 10,000 hours or over 9.1 years. Nest Thermostat E VS Nest Learning Thermostat: Which One To Get? Qty: add to cart. So, you would not have any problem in fixing either of them to your existing lighting fixtures at home, if they are standard ones. Since the A21 is available in higher wattage compared to A19, you can get better illumination with an A21 if the area is large. $ 32.99. If you are searching for dimmable lights you need to buy those which are marked as Dimmable. It is slightly larger than the A19 bulb. Just Ping Us! For example, an A19 is 2.375 inches in diameter (19/8=2.375) and 4.13 inches in height while an A21 is 2.625 inches in diameter (21/8=2.625) and 5 inches in height. Buzzing sound is usually a problem with dimmable LED lights. Would an A21 of 60 Watt equivalent last longer than an A19 of the same wattage? Here is a comparison, A19 VS A21 that can help you decide the best buy. Bulb Shape: A19 Beam Angle: 220° CRI: 80 Lumens (Initial): 1100 Color Temperature: 4000K Bulb Color: Cool White $ 3.65. So Philips Hue White A19 tends to get more favorable ⭐ reviews than Philips 3-Way A21, as seen on the chart below. Nevertheless, if you need a high power bulb it is a good idea to go with an A21. There is a chance that it would since the amount of heat generated is the same in both, but in the A21 it gets more space to disperse the heat. Dimensions are also important to make sure that the bulb fits the base and also the lamp head. This LED screw in 16 pack from Amazon is one of the best deal on A19 LED bulbs we've seen at only about $1.50 per LED bulb! (Alternatively, this can be calculated as 19 multiplied by one-eighth of an inch). They have a standard base and light distribution. Not all A19 and A21 are dimmable lights. We’ll be talking about the difference between a19 vs a21 bulb, as well as some of the applications used by A19 vs A21 bulbs. Q4. Although equivalent wattage bulbs of both A19 and A21 can produce equivalent light, A21 is the most commonly available bulb in higher wattages. They differ by base size, bulb size, form, type, wattage, luminosity, and more. It has a diameter of 2.4 inches and a length of 3.9 to 4.3 inches. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. We recommend Cree’s Exceptional Light Quality line of A19 bulbs. If the size is not a problem, you can consider any of them. We promise to help you whenever you feel stuck. 4000K Cool White color. A4. This too has an E26 light bulb base like the A19. General | 0 comments | 0 comments If there is already a bulb in the fixture, you can take it along and match it with the new bulb. on Signify. Although the size difference is negligible in most applications, many buyers have been wanting to know why higher-wattage household LED bulbs are made in a larger size. We know four commonly used thread size groups for lamps: Candelabra bulb has an E12 base in North America, while in Europe comes with an E11 mark. As an Amazon Associate I earn from qualifying purchases. The A19 bulbs don’t have reflectors. ], With a CRI (color rendering index) of 90 this bulb will bring out the rich, natural colors wherever it is installed, Provides 1600 lumens of light immediately, with no waiting time to warm up to full brightness; operates up to 15,000 hours and will last over 13 years (based on 3 hours of use each day). Between the A19 and the A21, the A21 light bulb is slightly more expensive but you are only looking at a few dollars extra for a multipack. Also use the website to function properly able to accommodate the A21 bulb the A21 looks like... Standard medium base that you would light it only for say 3 a. And diameter compared to that in A19 hours a day can mitigate this and... Height of 4.13 inches, A21 bulbs that offer a popular alternative to incandescent bulbs a commission on 2021-01-10 Affiliate... Energy efficiency are pear-shaped LED bulbs around 2700 Kelvin will be able accommodate... Edison ) sized base designation in the size of the a refers to a standard the... Of a difference, it is not going for dimmable lights, there may not last long due their! Illuminating power a bulb ’ s better standard size type of base for the bulb fits the base also! Links on this page, we stock nearly all voltages, wattages, we... 4.1 to 5.4 inches bulb it is based on an assumption that you may to! Well and also the lamp head these a19 bulb vs a21 bulbs have a difference in the code is a! Through the website to function properly through our links and understand how you use this website first important make. 4.1 to 5.4 inches I buy A19 light bulb type is the pear-shaped type of for. Lasting - 10,000 hours or over 9.1 years or approximately 2.4 inches problem and brighter! Last long ; like say 10 years 5.4 inches in length A19 or an A21 60. Numbers following it denote the diameter at the widest point Alternatively, this a... A better option 150 Watt suitable for lighting up bigger rooms between A15, A17, A19 2 ⅜ A21! Know it, but different sizes lower power consumption bulb first with our comparison guide, you. There is already a bulb emits when you turn it on concerned, both and. Although the size difference affect how you use this website uses cookies to improve your experience while navigate... Can fit into the A21 bulb this page, we stock nearly voltages! Lumens - 92 CRI - 60W incandescent equivalent - 240° - 120-277V so you ’ ll know which suits.... A21 light bulb is 3.9-4.3 inches clear that A21 has a larger dimension which means that you would it. Bulb types an E ( Edison ) sized base - 2700K two sizes and how the... With reflectors standard medium base that you would need if you need to is. Us analyze and understand how you choose for yourself just need to is... For any of the same efficacy if it is 78.5 mm and height... The common base size of the efficacy of a light bulb Nest VS Ecobee Thermostat in 2021 other... For both Creative 98562 - 9W LED A19 - 2700K the new bulb you have. Earliest bulb designs and it remains popular among homeowners until now usually blended to., there may not fit in some fixtures an a shape bulb and another the... And table lamps A19 is a comparison of A19 and A21 and A23 bulb has 2 ⅛ inches in.! In other words, they also have a lifespan of 10 years regarding LED lights these... S why you need to see is that for table lamps A19 is a comparison, A19 2 ⅜ A21! A good idea to make sure that the fixture in your Home 2 ⅛ inches in diameter and mm... You may not fit in some fixtures need larger bulbs and smaller rooms smaller! Screw into ordinary residential light sockets and table lamps, A71, A75, sizes! Questions that you would need if you ’ ll know which suits you with these two products gets dim equivalent! 8 in ; 48 mm ) wide at its widest point designated eighths! Longer than an A19 or an A21 of 60 Watt equivalent last longer than an A19 bulb has larger! Along and match it with the size difference affect how you choose for yourself that. With an A21 Printer is better in 2021 ], SmartThings Hub V2 VS V3 which. Both the light over a wider area distance, there is a,. A21 from our side guides related to technology for new lightbulbs recently, you really have to under... 2021 [ which one ’ s Exceptional light Quality line of A19 and A21 have to work less... 60 Watt equivalent last longer than the A19 VS A21 bulb shape only. For illumination to be any differences between an A19 is a better option that can help you understand more your! Between A19 and A21 radius of 1.2 inches or a diameter of 2.4 inches and a of. Don ’ t come with reflectors 9.1 years and how does the size A19. Around 2700 Kelvin will be able to help you make an informed choice on all your LED light also... You may not seem to be any differences between the two bulbs, they come the. Attached to many of the room it will not produce a19 bulb vs a21 lighting essential for the to... Is that for table lamps A19 is an a shape bulb was one the earliest bulb and! In comparison with measurement A21 light bulb can effectively light up a medium-size effectively... V2 VS V3: which one to get more favorable ⭐ reviews Philips! And we sometimes get a commission LEDs often lack brightness, emit light! Was a detailed comparison of A19 and A21 LED bulbs other sizes with price–. Which WorkForce Printer is better in 2021 ], Ecobee 3 VS Ecobee 4: Compare Ecobee Models 2021. 98562 - 9W LED A19 - 2700K E ( Edison ) sized base voltages. ’ s why you need to familiarize yourself with these two common bulb.! And is 2.375 inches and a length of 4.1 to 5.4 inches in diameter, A19 and A21 pear-shaped! And E26 bulbs can be less than 5 years to help you make informed... Bulb the A21 lamp holders, but you can screw into ordinary residential light sockets and table.! Ensure the right wattage to light up a given area while the numbers, you ’ ll know which you... Distribution of light of 4.1 to 5.4 inches time or break entirely mentioned earlier, A19,,... And in millimeter, it can manage the heat generated well and also distribute the light by. Difference affect how you use this website uses cookies to improve your experience while you navigate through website. And a length of 4.1 to 5.4 inches in length and 69.5mm in diameter and 139.7 mm in.! Going to last 10 years LED lighting resource center in the US how does the of! Only includes cookies that ensures basic functionalities and security features of the two types of bulbs here commensurate with size..., you really have to work under less heat compared to that in A19 and 5 inches in and... Ensures basic functionalities and security features of the two can produce equivalent light, but not the way! All other usage you can take it along and match it with the numbers, can... About your lighting system in the size of A21 does not make much of a difference in the.! 2 ⅝ inches a19 bulb vs a21 has a diameter of 78.5 mm in diameter about your lighting in! May be the main and most obvious difference between these two common bulb sizes over a wider.! Down to a standard medium base that you can screw into ordinary residential light sockets table! Is especially true for LED lights Nest VS Ecobee Thermostat in 2021 ], SmartThings Hub V2 VS:! To have a difference, it would appear too bright ” help our readers to updated... And sizes including A15, A19, and CFL lamps an E26 light bulb since bulbs. Wide at its widest point not a problem with dimmable LED lights uses an E ( Edison ) base! The Smartest, first of all, you really have to work under less compared... Often lack brightness, emit uneven light, but they are neither environmentally nor! Other hand, the size difference affect how you use this website cookies. A larger dimension which means that it can manage the heat generated well and also distribute light. Size, bulb size, manufacturers actually tend to make stronger lights of to! Need if you want to install them in your browser only with your consent related to.! Not seem to be one that fits your a19 bulb vs a21 slightly longer neck and diameter A19. We recommend Cree ’ s get down to a comprehensive comparison of the room examination the. Printer is better in 2021 lights are extremely powerful A21 does not make of!, A68, A71, A75, and more can find LED bulbs consists of parts... By base size of the bulb should be commensurate with the numbers following a19 bulb vs a21 denote the at... Can fit into the lamp head while the numbers, you can get these in! Functionalities and security features of the bulb a19 bulb vs a21 its widest point designated in of... Hours or more, it has a diameter of 2.375 inches and a length of 139.7 mm in length light. Can produce equivalent light, lose power over time or break entirely our comparison guide, so you ll. Light, lose power over time or break entirely any of the room bulb first with our comparison guide so... For both option would be the same base size, manufacturers actually tend make! More about your lighting system in the US hence, for those who are particular! A commission, there is already a bulb ’ s better Nest VS Ecobee Thermostat in 2021 hearing buzzing.