ceramic light bulb holder E27 twin entry ceramic lamp socket

are normally defined by a letter-number-letter format, with the last letter optional. The first letter designates the shape or form of the ceramic light bulb holder, the numbers represent either the width of the base or the distance between the pins. The second letter designates the number of pins or contacts on the lamp. The numbers are normally in millimeters. LED ceramic light bulb holder and bases are manufactured to the same standards as halogen, incandescent and other traditional lights.

This miniature ceramic lamp socket or E27 lamp holder is perfect for that electronics idea or science project. This lamp holder features a rolled shell of brass mounted in a porcelain base with two screw terminals and two pre-drilled holes to mount to a project board. The base diameter is 1 1/4" and the height is 7/8". It holds our 1.2-volt, 2.25-volt and 5.1-volt light bulbs.