Different Base Size For Light Bulbs

Regardless of style the diameter of a lamp is expressed in millimeters.

Different base size for light bulbs.

In technical terms it is an a19 type bulb. Most of the light bulbs that you buy in stores or online are going to have this kind of base. Par parabolic aluminized reflector spotlight and flood light bulbs. There are tens of unique bases for light bulbs.

These popular basic screw in light bulb base sizes are e12 e17 and e26. Br bulged reflector spotlight and floodlight bulbs. The e just stands for edison while the numbers refer to the width of the light bulb base as measured in millimeters. Don t get confused by some other combinations of letters and numbers you see with bulbs.

Bulbs with these base types are available in many different styles. A normal household light bulb is on average a 60 watt light bulb. Par16 par20 par30 par38. For example an e10 base would be 10 millimeters in diameter.

Therefore a light bulb described as a gu 10 base will feature a 10 millimeter wide base. The size of the bulb base appears right next to the base style on the packaging in the form of a number. E27 medium a little larger than the common e26 medium base this bulb base can still be used in most applications. The size of a bulb base is determined by measuring the width of the base in millimeters at its widest point.

The prefix e is derived from the name edison and the second is the diameter of the base measured in millimeters. Screw in light bulbs have different base sizes. 1 888 455 2800 fax 1 508 363 2900. For example an e17 light bulb base has a base width of 17 mm.

Click or tap on a base to view matching bulbs from our catalog. Common bulbs with e26 e27 bases. Screw bases 10mm miniature screw e10 11mm miniature candelabra e11 12mm candelabra e12 14mm european e14 17mm intermediate e17 26mm medium e26 26mm medium skirted 27mm european medium e27 39mm mogul e39. The ameans arbitrary shapeand the 19means size in diameter 19 8th inches or 2 3 8th inches.

The most familiar is the edison screw base found on most incandescent bulbs and many halogen compact fluorescent hid and now led bulbs. This is the most common light bulb base that you can buy and is used in hid cfl ccfl halogen and incandescent light bulbs.