Light bulbs are identified by the diameter length shape and screw type.
Shape lamp sizes chart.
The letter indicates the shape of the lamp and the number relates to the diameter of the lamp in eighths of an inch.
The code number of a bulb consists of a letter or letters followed by a number.
Light bulb sizes and shapes chart including the different kind of light bulb bases.
A normal household light bulb is on average a 60 watt light bulb.
The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch.
A different size harp or the addition of a screw on extender to the harp can help make your new shade fit even better.
The mosts commonly used household bulb is the a 19.
If you have any questions about style size or fitter please give us a call.
The a indicates the shape standard and the diameter would be 2 38 which is 19 eights of an inch.
The a means arbitrary shape and the 19 means light bulb shapes types sizes identification guides and charts read more.
The bulb is a type and the diameter would be 23 8.
The reference ruler at left illustrates the most commonly used household lamp an a19.
Bulb shapes and sizes.
This is done in the form of letter followed by a number.
In technical terms it is an a19 type bulb.