All about Edison Screw Base Light Bulb

It is important to determine if the base type you intend to purchase matches the type taken by your light fixture, otherwise; the bulb will not fit. Then, aside of the light bulbs coming in a variety of base styles and bulb shapes, there are many different bulbs that are the same shape and even have similar looking bases, but those bases might be different sizes. For that, you need to know the technical name or other details for bulb bases. 

Light bulb bases nowadays come in several different types, and among that, Edison screw base is the most common one used in the lighting industry. So, this post covers anything about screw base bulbs, helping you understand their naming convention, base styles, bulb shapes and help you with bulb identification.





 
CONTENTS：
What are Edison Screw Base?
Common Screw Base Styles of Light Bulbs
What Types of Edison Screw Base Bulbs Do LOHAS LED Offer?

 

 

What are Edison Screw Base?

Common Screw Base Styles of Light Bulbs

 
Screw bases come in several sizes, and they are referred to by both a descriptive name and size. As what we mentioned above, unlike the light bulb shapes, in the designation "Exx", "E" stands for "Edison" and "xx" indicates the diameter in millimeters as measured across the peaks of the thread on the base (male), e.g., e12 base has a diameter of 12 mm. To these days, four commonly used thread size groups for mains supply lamps in U.S. are - Candelabra base/E12 base, Intermediate base/E17 base, Medium or standard base/E26 base, Mogul base/E39 base.




 

E26 Bulb - Medium Bulb

 
E26 light bulbs are the most popular of all screw base bulbs that are primarily used in North America. Then, e26 bulbs 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. Not only that, bulbs with these base types are available in many different bulb shapes, lumen, wattage and functions, but the a19 bulb and a15 bulb are the most common one that come with an e26 base.

 

Technical Details Comparison of LOHAS E26 Light 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 Bulb	A19 Bulb	A15 Bulb	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 Bulb - Candelabra Bulb

Having a diameter of 12 mm, e12 light bulbs are considered smaller. So, if you have a light fixture with a smaller base than a traditional e26 bulb base, you should take an e12 bulb / candelabra bulb for instead, which is characterized by their relatively candelabra base and tear-drop glass shapes. Plus, candelabra bulbs are generally used for night light bulbs but can also be found in some decorative bulbs used over the in a chandelier.

 

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 Bulb	ST48 Beam angle: 330°	Candle	Candle
Key Functions	Controlled by Voice and APP	Controlled by Voice and APP	Decoration	Decoration	Decoration
Dimmable	√	√	√	×	×

 

What Types of Edison Screw Base Bulbs Do LOHAS LED Offer?

Up to now, apart from the the common standard led bulbs, screw base bulbs are generally designed to the e26 bulb or e12 bulb but with different functions. So, it's quite important for you to consider what extra you want your bulbs add before the purchase.

 

Dusk to Dawn Light

 

If you do wanna never have to worry about keep leaving the light on during the daytime, the bulb come with built-in dusk to dawn photocell sensor is all you need. With its built-in photocell sensor, the dusk to dawn light bulb will automatically turn the lights on at dusk, and turn itself offwhen light is detected by this sensor.
 
NOTE: If you are using more than one dusk to dawn lighting, remember to give them a suitable distance - more than 3.3 FT, so they can work perfect without being affecting by each other.

 

Technical Details Comparison of LOHAS LED Dusk to Dawn Sensor Light Bulb

	a19 e26 dusk to dawn light bulb	a19 e26 dusk to dawn light bulb	a19 e26 dusk to dawn light bulb	a21 e26 dusk to dawn light bulb	br30 e26 dusk to dawn light bulb
Package	4 Pack	4 Pack	2 Pack	2 Pack	2 Pack
Lumen	500LM	500LM	920LM	1580LM	720LM
Watt	6W (40W Equivalent)	6W (40W Equivalent)	12W (100W Equivalent)	16W (150W Equivalent)	9W (60W Equivalent)
Bulb Size	e26 base a19 bulb	e26 base a19 bulb	e26 base a19 bulb	e26 base a19 bulb	e26 base a19 bulb
Color Temperature	Daylight White 5000K	Soft White 3000K	Daylight White 5000K	Daylight White 5000K	Daylight White 5000K

 

Smart Bulbs

In addition to providing convenience, smart wifi light can be somewhat fun but also the easiest way for them to make their home "smart", so many lighting manufactures has designed the screw base bulbs to smart light bulbs. Then, from making our life colorful and full of energy to liven up the party, the trend of color changing light bulb becomes more and more popular.

 

Technical Details Comparison of LOHAS Color Changing Light Bulb

	E12 Color Changing Light Bulb	A19 Color Changing Light Bulb	Color Changing Downlight	BR30 Color Changing Light Bulb	E26 Color Changing Light Bulb
Price	$26.99/2 Pack	$21.99/2 Pack	$25.99/Pack	$17.99/Pack	$36.99/4 Pack
Lumen	450LM	650LM	680LM	1000LM	810LM
Watt (Replacement Watt)	5W (40W Equivalent)	8W (60W Equivalent)	10W (65W Equivalent)	10W (75W Equivalent)	9W (60W Equivalent)
Light Color	RGB & Cool White	RGB & Warm White	RGB & Warm White	RGB & Warm White	RGB & Warm White
Color Temperature	2700K-6500K	2700K-9000K	2000K-9000K	2000K-9000K	2700K-6000K
Base	candelabra base	e26 base	e26 base	e26 base	e26 base
Shape	led candelabra bulbs	a19 bulb	round	br30	bulb
Voice Control	Alexa,  Google Assistant, Siri,	Alexa,  Google Assistant, Siri,	Alexa,  Google Assistant, Siri,	Alexa,  Google Assistant, Siri,	Alexa,  Google Assistant, Siri,
Dimmable	√	√	√	√	√
No Hub Design	√	√	√	√	√

Surely, apart from these two types of screw base bulbs we mentioned, most of the screw base bulbs that you buy in stores or online are going to have this function - avoiding attracting any bugs while offering the suitable soft light for anywhere surround your home. What is it? The yellow led bulbs.



 
Although lighting has significantly changed and improved since Edison made his public demonstration of his incandescent light bulb in 1879, the entire industry still recognizes his contributions every day when they refer to the Edison base type. Hope this guide have done some help for you.