What Base Is A Standard Light Bulb

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.

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. 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. Bulbs with these bases are the most popular of all screw base bulbs.

1 888 455 2800 fax 1 508 363 2900. 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. 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. 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. 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.