B10 vs B11 Bulbs: What are the Differences? - Comparison Guide
B10 vs B11 Bulbs

B10 vs B11 Bulbs: What are the Differences?

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In this article, we will explore the differences between B10 and B11 bulbs in detail, including their size, brightness, and energy efficiency. We will also discuss the various uses of these bulbs in different types of lighting fixtures. Whether you are a homeowner looking to upgrade your lighting or a professional seeking the best bulb for your project, this article will provide you with the information you need to make an informed decision.

By understanding the differences between B10 and B11 bulbs, you can choose the bulb that best suits your lighting needs. We will take a closer look at each of these bulbs and compare them based on their features and specifications. Whether you are looking for a small, energy-efficient bulb or a brighter, more powerful option, this article will help you make an informed decision about which type of bulb to choose for your lighting project.

Differences Between B10 and B11

B series bulbs types

Size Comparison

t has a tapered shape and a blunt tip, measuring approximately 1 1/4″ in diameter around the glass. B10 bulbs are available with two different base sizes: E12 (12 mm) candelabra base and E26 (26 mm) medium base. The E26 base is typically used for light fixtures in the United States.

B11 has a slightly larger diameter of 1.375 inches and a more tapered shape compared to the B10 bulb. Like the B10 bulb, the B11 bulb is available in both incandescent and LED versions.

Check Also – B10 Vs B13 Bulbs: What Are The Differences?

Brightness Comparison

Although basically these two types of bulbs do not differ and are not sorted by brightness, and the intensity of brightness depends on the model and manufacturer, we still concluded that in many cases B11 is the one with stronger brightness.

Energy Efficiency Comparison

In terms of energy efficiency, there is not much difference between B10 and B11 bulbs. Both types of bulbs are designed to be energy-efficient, with low wattage ratings that help to reduce energy consumption. However, it is worth noting that the B10 bulb is generally more energy-efficient than the B11 bulb, as it has a lower wattage rating.

Uses for B10 and B11 Bulbs

B10 and B11 bulbs are both used in a variety of lighting applications, from residential to commercial settings. B10 bulbs are often used in decorative lighting fixtures, such as chandeliers and wall sconces, where their small size and low wattage rating make them an ideal choice. B11 bulbs, on the other hand, are often used in pendant lights, table lamps, and other types of lighting fixtures where brightness is important.


In summary, the main difference between B10 and B11 bulbs lies in their size and shape. The B10 bulb has a smaller diameter and a more rounded shape, while the B11 bulb has a slightly larger diameter and a more tapered shape.

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