Different Light Bulb Base Sizes

Shop by screw base with our universal bulb finder e26 e27 medium edison 26 mm or 27 mm diameter.

Different light bulb base sizes.

Bi pin bases 4mm g4 4mm gu4 4mm gz4 5 3mm g5 3 5mm g5 5 3mm gu5 3 5 3mm gx5 3 5 3mm gy5 3 6 35mm g6 35 6 35mm gy6 35 6 35mm gz6 35 8mm gy8 8 5mm g8 5 9mm g9 9mm g9 pin blade 9 5mm g9 5 9 5mm gx9 5 9 5mm gz9 5 12mm g12 bayonet bases miniature bayonet double contact bayonet ba15d single contact bayonet ba15s d. There are hundreds of unique bases for light bulbs. However because the light industry likes mysterious codes you may also see e26 e12 e39 etc. E obviously is for edison.

The common terms are medium intermediate candelabra and mogul. For example a lamp with a medium base or e26 measures 26 millimeters 1 02 inches at its widest point on the base. The industry uses many terms for the same size. Bayonet medium by22d index double contact bayonet wedge bases.

The following is a list of common basic types presented on a size lamps. The size of a bulb base is determined by measuring the width of the base in millimeters at its widest point. Decoding edison bulb base types. The size of the bulb base appears right next to the base style on the packaging in the form of a number.

A19 a15 a21 br bulged reflector spotlight and floodlight bulbs. There are many light bulb base sizes available. Therefore a light bulb described as a gu 10 base will feature a 10 millimeter wide base. Types of light bulbs bases most a shaped lamps have a screw base e12 e17 or e26.

Common bulbs with e26 e27 bases. E26 bulbs are primarily used in north america while e27 bulbs are most. The most familiar is the edison screw base found on most incandescent bulbs and many halogen compact fluorescent hid and now led bulbs. This light bulb base is not very common and most often found on much smaller bulbs.