Base Light Bulb Socket Types

Historically known as the old christmas light bulb size.

Base light bulb socket types.

Sockets for instant start ballasts are also known as shunted. You can compare most common e size designations with a thread diameter see the specific light bulb name for that size see what are the most common applications and even see the official standard for light bulbs. Medium e26 bulbs e27 in europe. C9 e17 intermediate base bulbs.

Typically used for chandelier type fixtures and decorative lighting. Replace worn sockets in light fixtures. Light bulb socket sizes chart. Item 391789 model 4041240412.

These sockets work with tubular fluorescent or led bulbs. Harbor breeze off white lamp socket. For t5 bulbs fluorescent and led. Ge 3 way lamp socket medium base turn for low medium high light settings for floor and table lamps diy project ul listed brushed gold 54372 by ge 5 96 5.

The same size as a standard household bulb. Named after thomas edison the edison screw socket is the most common and easily recognizable socket type. For example an e26 socket is designed for use with an e26 based light bulb. In some older light bulb catalogs bases are referred to as caps e11 miniature candelabra e26 medium screw e39 mogul screw ex39 mogul exclusionary ba15d double contact bayonet ba15s single contact bayonet fa8.

Sockets for rapid and preheat ballasts are also known as non shunted. These sockets have a designation code that starts with an e for edison and a number which represents the diameter in millimeters of the light bulb base that fits into it.