Do I need two dimmer switches or can I just have one?

mistermarty · Sep 13, 2020

We have an LED ceiling light fixture on our 2nd floor. There is an on/off switch on the 2nd floor and an on-off switch on the 1st floor. I want to install a dimmer switch because the light is too bright. Do I need to install two dimmer switches (one on each floor) or can I install just one dimmer switch (set it at a dim setting) and leave the other switch as a standard on-off switch so when that switch is turned on the light is dim based on the dimmer switch setting?

James · Sep 13, 2020

Only 1 is required.
However, not all led light fittings can be dimmed
Check with the manufacturer of the light fitting, as to which dimmers are recommended.

goasis · Sep 13, 2020

Yes one dimmer switch is correct. In fact, you can only put 1 dimmer on per switching way. (there are specific dimmers which allow more than 1 but they are the exception)
Certainly in the UK anyway, just noticed the flag!

Megawatt · Sep 13, 2020

mistermarty said:
We have an LED ceiling light fixture on our 2nd floor. There is an on/off switch on the 2nd floor and an on-off switch on the 1st floor. I want to install a dimmer switch because the light is too bright. Do I need to install two dimmer switches (one on each floor) or can I install just one dimmer switch (set it at a dim setting) and leave the other switch as a standard on-off switch so when that switch is turned on the light is dim based on the dimmer switch setting?

Sorry my friend but that wouldn’t work with just 1 dimmer switch. Both switch’s would need to be dimmers switches.