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Hi i posted before but have little more info now. I have bathroom spotlights GU10 bulbs which when i put dimmer on instead of switch there was loud humming from fuseboard. I checked fuseboard and lights for each bathroom seem to be powered by a relay. A fan also turns on when lights switched on...

Hi Sorry for late reply. I checked lights and there Gu10 bulbs. It appears that they is a contactor on fuse board for each bathroom. When i turn on switch the contactor light comes on. Is it possible that these contactors cannot be used when i put the dimmer switch on. The lights will dim but a...

Thanks. I would change bulbs but the lady wants to dim them as all other lights in apt have dimmers Just one more query on it. What way are these wired? At the switch there appears to be two switch wires. Why would that be? Thanks

Thanks for reply. Just few questions why would somebody use din rail transformer instead of individual transformers? 2 Are they expensive din rail transformers? 3 Is it possible to get a dimmable din rail transformer and are these expensive? Thanks a million for all the advice in advance

thanks a million for all help will try get picture

Thanks for reply very helpful. There is just 4 lights in bathroom. So u can get a dim mounted transformer that dims? How much roughly would this cost. The other lights in house are also on a contactor but it seems alot bigger than the one for bathroom (Like size of an RCD) and they dim ok. Is...

The lights do dim but just a loud humming from fuseboard. Thanks

Thanks for reply. Is there anyway around this? Have I any options. Thanks in advance

Hi I have got a problem with dimmer switches. I was installing two in an apt in the bathroom. The lights were low voltage halogen i think. When i changed switch to the dimmers and tryed to dim them they dimmed alright but they was a very loud humming from the fuseboard. I looked at fuse board...