Standard Light Bulb Base Type

Shoppers of led light bulbs often confuse the specifications for base type e26 or e27 and bulb shape a19.

Standard light bulb base type.

Look at your fixture to determine its base type. Common bulbs with e26. It has a pear like shape and is typically fitted to either an edison screw or a bayonet cap base. Most common light bulb uses including lamps recessed flush mount flood lights are going to have one of the first three base types shown above.

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. The a series light bulb is the classic glass light bulb shape that has been the most commonly used type for general lighting service gls applications since the early 20th century. This is an epic light bulb buying guide that you need when putting in light fixtures or you need to buy a bulb. 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 vanity lights.

Screw in bulbs use a base called an edison screw or es base. The number that follows the a designation indicates the nominal major diameter of the bulb either in one eighth. Bulbs with these base types are available in many different styles. Pin type bases are normally used for track lighting landscape bulbs.

Bulbs with these bases are the most popular of all screw base bulbs. Look at your fixture to determine its base type.