# Différence entre classe A et classe B des ampoules LED

By [LED energy efficiency](https://paragraph.com/@led-energy-efficiency) · 2023-02-02

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Class A and Class B LED bulbs are two different grades of LED lighting. The main difference between them is quality and performance.

Class A LED bulbs are considered the highest quality, offering superior performance and reliability. As a result, Class A LED bulbs have a longer lifespan, better light output, and higher energy efficiency compared to Class B LED bulbs.

Class B LED bulbs, on the other hand, are of lower quality compared to Class A LED bulbs. They are typically less expensive but also have a shorter lifespan, lower light output, and lower energy efficiency. Class B LED bulbs are often used in applications that don't require high-quality lighting or where cost is a major concern.

![](https://storage.googleapis.com/papyrus_images/abf4c401fcc96982c21f862625944548e4922ab1f079a55ec70cba73f4cdedcf.png)

In conclusion, Class A LED bulbs are recommended for applications that require consistent, high-quality lighting, while Class B LED bulbs are a good choice for less demanding applications where cost is a major concern.

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*Originally published on [LED energy efficiency](https://paragraph.com/@led-energy-efficiency/diff-rence-entre-classe-a-et-classe-b-des-ampoules-led)*