E12 Bulb vs E26 Bulb: What's the Difference?
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E12 Bulb vs E26 Bulb: What's the Difference?

Compatible with a variety of sizes, shapes and functions, light bulbs are generally categorized by their bases. The bulb base refers to the part that screws into a light socket, which can be simply divided into screw-in bases, plug-in fluorescent bases, GU series, bi-pin bases and specialty bases. Each works in a different way to connect your light bulb to electrical voltage.

Then, the Edison screw base is a standard light bulb socket for electric light bulbs, which has now displaced other socket types for general lighting in North America and continental Europe, and among them, the most common types you met must be the e12 base and e26 base. Normally, most of you may have known that there are some mechanic difference between the e26 bulb and e12 bulb, but aside of their different screw dimension, are they the same? If you are the one who want to find out the difference between e12 light bulb and e26 light bulb, this post is all you need.








CONTENTS:
What is an e12 light bulb or e26 light bulb?
Mechanical differences between e26 base and e12 base.
Usage variance between e26 led bulb and e12 led bulb.




What is an e12 light bulb or e26 light bulb?

Reference: Edison Screw from Wikipedia

Belonging to Edison screw base, e12 bulb base and e26 bulb base are two commonly used thread size groups for mains supply lamps. So, when it turns to the difference between an e12 light bulb or e26 light bulb, let's make clear what do screw base exactly mean and how do they work at first.




What are screw bases?

Screw bases come in several sizes and are referred to by both a descriptive name and their size. Unlike light bulb shapes, the "E" indicates that the bulb has an Edison base and the numerical part is the diameter of the base in millimeters. Therefore, an e12 bulb refers to the bulb with a base diameter of 12 millimeters while an e26 bulb is 26 mm in diameter.





How do screw-based bulbs work.

In an incandescent or halogen screw base light bulb, two contact wires connect the filament to the base of the light bulb, where the electrical voltage connects to the light bulb. The contact wires are soldered to the base metal at two different points on the base in order to keep them affixed to the base metal.

If the contact wires were not permanently affixed to the base metal, electrical current would not be able to continuously flow through the wires to energize the filament into producing light. One of the contact wires is soldered on the side of the base, and the other is soldered at the bottom. Therefore, the light bulb makes electrical contact at two points on the base.







Mechanical differences between e26 base and e12 base.

Governed by the IEC standards, manufacturing of Edison screw bulb bases have the required dimensions for E26 and E12, respectively. And despite what is commonly described as 14 mm difference between E26 and E12 screw dimensions, their length of screw and insulator height requirements are totally different.

Below are diagrams and specifications comparing E12 to E26:

Mechanical Difference between e26 base and e12 base


Length of screw (min)
Insulator height (min)
E12 Base
11.7 mm
1.6 mm
E26 Base
19.56 mm
3.25 mm





Usage variance between e26 led bulb and e12 led bulb.


Apart from their different diameters, e12 bulb and e26 bulb are designed to various usage and will work better in different spaces of a home. Now, let's take a deeper look at their different usages to see where each should be used.



E26 LED Bulb

E26 led bulbs are primarily used in North America. which are commonly used for general lighting in standard light fixtures, such as ceiling lights, lamps, can lights, porch lights and flood light fixtures, and vanity lights. Bulbs with these base types are available in many different styles.

Common bulb shapes with E26 bases:
A-shaped bulbs: A19, A15, A21
Globe-shaped bulbs: G30, G25, G16.5
PAR spotlight and flood light bulbs: PAR16, PAR20, PAR30, PAR38
BR (bulged reflector) spotlight and floodlight bulbs: BR20, BR30, BR40


Technical Details Comparison of LOHAS E26 LED Bulbs


e26
smart bulb

e26 dusk to dawn light bulb

e26 yellow led bulb

e26 smart retrofit downlight

e26 led daylight bulb
Price $21.99/2 Pack $25.99/4 Pack $19.99/4 Pack $25.99/Pack $29.99/4 Pack
Lumen 450LM 500LM 450LM 680LM 2500LM
Watt
(Replacement Watt)
8W
(60W Equivalent)
6W
(40W Equivalent)
5W
(40W Equivalent)
10W
(65W Equivalent)
23W
(150 - 200W Equivalent)
Light Color RGB &
Cool White
Daylight White Orange Yellow RGB &
Tunable White
Daylight White
Color Temperature 2700K-6000K 5000K 2000K 2000K-9000K 50000K
Shape A19 A19 A15 Round Candle
Key Functions Controlled by Voice and APP Auto Turn ON or OFF Provide sufficient illumination without attracting bugs Decoration
Controlled by Voice and APP
Light comes on instantly when turned on
Dimmable × × ×




E12 LED Bulb - Candelabra Bulbs

Popular in North America either, 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.

Common bulb shapes with E12 bases:
Small tube-shaped bulbs: T8, T6, T22
Candle-flame-shaped bulbs: C7, C9, CA10, B10
Small globe-shaped bulbs: G14, G16, G50


Technical Details Comparison of LOHAS E12 Light Bulbs


e12
smart bulb

e12 color changing light bulb

e12 filament vintage light bulb

e12 filament vintage light bulb

e12 decorative cylindrical bulb
Price $26.99/2 Pack $29.99/2 Pack $22.99/6 Pack $29.99/6 Pack $18.99/3 Pack
Lumen 450LM 810LM 400LM 600LM 1100LM
Watt
(Replacement Watt)
5W
(40W Equivalent)
9W
(60W Equivalent)
4W
(40W Equivalent)
6W
(60W Equivalent)
12W
(100W Equivalent)
Light Color RGB &
Cool White
RGB &
Tunable White
Warm White Warm White Warm White
Color Temperature 2700K-6000K 2700K-9000K 2700K 2700K 2700K
Shape Candle A19 ST48
Beam angle:
330°
Candle Candle
Key Functions Controlled by Voice and APP Controlled by Voice and APP Decoration Decoration Decoration
Dimmable × ×





To these days, an e12 bulb and e26 bulb are the most common and widely used in North America and Europe. With this guide showing their difference here, it's easy enough for you to look at the bulb that you need to replace and shop for a right bulb.Click to get more LOHASLED bulbs on amazon