The humming or buzzing noise that can occur with a dimmer is often caused by the filament of the lamp.

When a dimmer repeatedly interrupts the voltage, voltage fluctuations occur. These changes cause:

• Fluctuations in the current

• A changing magnetic field in the small coil of the filament

The coil then acts like a small magnet, whose magnetic field rapidly changes polarity. This causes vibrations in the filament, leading to the characteristic humming or buzzing noise.

How to prevent a humming dimmer?

Completely eliminating this noise is often difficult. In many cases, it occurs because the lighting is connected to a lower-quality dimmer.

Tips to prevent humming:

• Choose a high-quality dimmer that matches the lamps well

• Check whether the lamps are suitable for dimming

• Avoid combining multiple types of lamps on one dimmer

By taking these measures, you can significantly reduce the risk of a humming or buzzing dimmer.