Bulb Socket Types

Light bulb socket sizes chart.

Bulb socket types.

Use this handy guide to identify different types of light bulb bases that apply to incandescent halogen high intensity discharge fluorescent and led light bulbs. Here is the light bulb socket size chart to help you determine what size do you need your light bulb to be. Bulb type trade number cap base filaments nominal power 12 8v high low beam where applicable comments image hb1 9004 p29t 2 65 45 w hb2 9003 p43t 38 2 60 55 w european h4 w stricter geometric tolerances lower max output limit hb3 9005 p20d 90 1 65 w hb3a 9005xs p20d straight 1 65 w hb3 w 180 straight base hb4 9006 p22d 90 1 55 w. 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.

Skirted par 38 the light bulb commonly used since the early 20th century for general purpose lighting applications with a pear like shape and an edison screw base is referred to as an a series light bulb this most common general purpose bulb type would be classed as a19 e26 or the metric version a60 e27. This size is the most common for the incandescent and the led edison vintage bulbs. Meanwhile wedge type sockets are designed to withstand harsh environments better than other types so they are used for lights that are purposely designed to be exposed. If you do not see the base type you are looking for give us a call at 800 784 1998 and we can help you locate the correct bulb.

One example would be the push and turn pt socket which features a simple and lightweight design that s often used to fit tail light bulbs and turn indicators. The first and the most popular one is the medium screw base e26. 10mmminiature screw e10 11mmminiature candelabra e11 12mmcandelabra e12 14mmeuropean e14 17mmintermediate e17 26mmmedium e26 27mmeuropean medium e27 39mmmogul e39. All replacements are 1 1 possible without any mechanical or electrical adjustments.

There are two common socket types which are the classic bulb socket edison and the pin socket. E26 socket ceramic standard medium screw socket e26 e27 bulb lamp holder e26 light socket with 12 inch wire lead for halogen incandescent led light bulb 5 pack. E39d three way mogul modified socket with additional ring contact for 3 way lamps e40 mogul. Click on any of the illustrations to view a list of bulbs with that light bulb base.