What Base Is A Standard Light Bulb

A further explanation of the light bulb base sizes you can look at the letter number references e12 e17 and e26 to help understand a bulbs base style and size.

What base is a standard light bulb.

The light bulb base and socket are manufactured in a way that predetermines the light bulb s position in the socket. No matter how the end user places the light bulb base into the socket it will always turn and lock into the same position every time creating a fail safe for the light bulb s operation. They are commonly used for general lighting in standard light fixtures such as ceiling lights lamps can lights outdoor spotlight and flood light fixtures and. Click on any of the illustrations to view a list of bulbs with that light bulb base.

The extra thick filament extends the life of the bulb when used in high vibration applications such as a ceiling fan or garage door opener. Find the light bulb base type you re looking for with this visual chart detailed illustrations of general bases fluorescent bases and specialty halogen base types. For medium base ceiling fans rough service bulbs work the same way. Bulbs with these base types can be used interchangeably as there is only a 1 millimeter difference in base size.

The first letter designates the shape or form of the base and the number represents the width of the base normally in millimeters. 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.