Pourquoi Mon Ampoule Clignote ? - Causes et Solutions

Why is my light bulb blinking? - Causes and Solutions

Why is my light bulb blinking? - Causes and Solutions

Have you ever noticed that your light bulb is blinking intermittently or continuously? This common problem can be both annoying and concerning. In this article, we will explore the main reasons why a light bulb may be flickering and offer solutions to fix it.

1. Power Supply Problems

The most common cause of a flickering light bulb is a problem in the power supply. This may be due to a voltage fluctuation in your home electrical circuit. If the flickering occurs when you are using other power-hungry appliances, such as a microwave or washing machine, it is likely that these appliances are disrupting your home's power supply.

Solution: Check your electrical circuit or call a professional electrician to diagnose and resolve voltage issues.

2. Compatibility with Light Dimmers

LED bulbs in particular may flicker when used with incompatible dimmer switches. Unlike incandescent bulbs, not all LEDs are designed to be dimmable.

Solution: Make sure you use bulbs that are compatible with your dimmer. Check the bulb specifications or replace your dimmer with an LED compatible model.

3. Loose Connections

A loose connection between the bulb and its holder can also cause flickering. This could be due to improper tightening of the bulb or a problem with the holder itself.

Solution: Make sure the bulb is screwed in securely. If the problem persists, examine the bulb holder for any signs of damage or corrosion.

4. Bulb Life

Light bulbs, especially incandescent and halogen ones, can start to flicker near the end of their lifespan.

Solution: Replace the bulb with a new one. Consider using LED bulbs, which have a longer lifespan.

5. Bulb Quality

Poor quality bulbs or cheap bulbs may flicker more frequently. The quality of manufacture and materials used may affect the performance of the bulb.

Solution: Opt for bulbs from reputable brands and check consumer reviews before purchasing.


A bulb flickering can be caused by several factors, ranging from power supply issues to the quality of the bulb itself. By identifying the underlying cause, you can take appropriate action to resolve this problem. If you are unsure of the cause or solution, it is always best to consult a professional.

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