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[Lawrence]

I have recently fitted some dimmable low energy bulbs and changed the dimmer switch (link below) which I was advised was designed to be used with low energy dimmable bulbs

However, when I now have the lights on (dimmed or on full power) I get a buzzing on the breaker at the consumer unit.

Does anyone know why I get this buzzing and how I can stop it

thanks



Google "theinternetelectricalstore.com/hq7w-1-gang-1or2-way-0-120-watt-push-onoff-standard-dimmer-switch-white-plastic-white-knob-702-p.asp"

[steve the plumber]

How many bulbs are operated by the switch and what wattage are they?

[Lawrence]

there are 6 x 9W bulbs
the circuit is a 2 way with only one dimmer switch

thanks

[steve the plumber]

It's normal for the dimmer switch to be buzzing but not the on the MCB.

I wouldn't use a dimmer on low energy lighting. Fit a normal switch and see if the buzzing stops.