Double switch to single switch help please

5 Jan 2022
Reaction score
United Kingdom
Hi all
I’d be grateful for your advice. I currently have two wall lights controlled by a double dimmer switch. It is buzzing so I want to replace it. I’d like to replace it with a single switch that controls both lights but as a result the wiring doesn’t appear to be a straight swap when I look at my new switch. The first two photos show the current set up. The third photo shows the new switch. Is anyone able to advise how I should wire it please? Many thanks.


  • C6DA6FC5-D496-4263-9FC5-3BD1AB52B6C6.jpeg
    134.8 KB · Views: 91
  • 5DF7038F-8040-4C5C-923D-AA7F91F8708E.jpeg
    142.9 KB · Views: 89
  • FA198FE8-E011-4B81-B028-11FADBB590BF.jpeg
    139.1 KB · Views: 86
Sponsored Links
The new dimmer has a 60W minimum. Will that be compatible with the lamps?

Don't mix up the reds.

The red that is in with the red link wire on the old switch is the permanent feed so put it in the middle terminal of the new switch (you don't need the short red link anymore).
The remaining red and yellow (which are the switched lives for each light) can be put together in L1 of the new switch.
Leave L2 unconnected.
Sponsored Links
Fantastic thank you. I will check the point re 60w minimum

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local