Dimmer noise


When I use a dimmer to dim a light, it makes a light buzzing noise. Why does it make a noise?
samuellaudio
When I bought my house, it had nothing but dimmer switches. I changed them all.
In my experience this was a major problem with dimmers some years ago. New dimmers do not exhibit the problem. Try a new dimmer, and don't buy the cheapest one you can find.