Screw in light bulbs have different base sizes.
Different types of light bulb bases.
Light bulb base chart screw bases fluorescent pin bases twist lock bases bi pin bases bayonet bases wedge bases compact fluorescent plug in bases miniature automotive bases specialty bases cable bases miscellaneous bases.
Here are the most common bulb bases.
A19 a15 a21 br bulged reflector spotlight and floodlight bulbs.
Types of light bulb bases e10 mini screw these small bulbs have a base of 10 mm and are great for lanterns flashlights and decorative optical fiber lights.
E26 bulbs are primarily used in north america while e27 bulbs are most.
For example an e10 base would be 10 millimeters in diameter.
There are dozens of types of light bulbs and literally hundreds of unique light bulb bases.
While the edison screw base may be the most familiar there are others to consider as well.
There are tens of unique bases for light bulbs.
They are differentiated by the e size which is a reference to their size in millimeters.
While the bulb life varies they will generally last for about one thousand hours.
There are many bulb bases which have been developed but the most common series is the edison base labeled with an e in front.
The most familiar is the edison screw base found on most incandescent bulbs and many halogen compact fluorescent hid and now led bulbs.
The edison screw in base is universally recognized as the light bulb base.
Click on any of the illustrations to view a list of bulbs with that light bulb base.
Shop by screw base with our universal bulb finder e26 e27 medium edison 26 mm or 27 mm diameter.
Common bulbs with e26 e27 bases.
Here are the typical sizes.