E14
E14 refers to a standard screw base for light bulbs, specifically a small bayonet fitting. It is part of the E-series of screw bases defined by the International Electrotechnical Commission (IEC). The "E" stands for Edison screw, and the "14" denotes the diameter of the base in millimeters. This base is commonly found in Europe and many other parts of the world, though it is less prevalent in North America where the E26 base is more common.
The E14 base is characterized by its two small pins that engage with corresponding slots in the