Hello there,
Does that exist?
As usual, guests in my house tend to activate a physical switch, ruining my smart bulbs configuration.
Especially those bedside lamps.
It is a switch that cut the wire somewhere, like so
So my guests will have the reassuring feeling of a well known switch but I’ll not have to pair my bulbs all the time.
Is there anything suitable here?
Otherwise you might try a remote switch - it might feel familiar even though it’s not wired in.
You could consider something like the following:
Alternatively just lose the inline rocker switch and go for an Ikea smart bulb with a remote:
There are several Blueprints for the Ikea remotes that let you also control additional devices or activate scenes via double-tapping for example.
I like the first one, will investigate that idea further.
The second solution is what I’ve for the chandelier but unless you remove the wall switch and cover the hole with the ikea (or other wireless) remote, it is the same, guests are pushing that god damn button.
For wall light switches I use the following from Ali Express which are available for with/without a neutral wire:
The module goes behind the wall switch plate and the switch is wired into the module meaning that the ceiling light can be operated either by the wall switch, a remote, or from an HA Dashboard.
In the bedrooms I have a wall switch plate with 3 switches so that the bedside lamps can be controlled from the wall switch as well. I am happy to share the config if you are interested.
Thank you for the wall switch idea.
I’ve already a project with a sonoff mini l2 ongoing, decoupling the relay and the button so the light is always powered on and can act as a zigbee mesh relay.
The button just being relayed to the lamp through the “bind” option of Zigbee2MQTT.
When this project is mature enough, I’ll share it in the forum under “my project” section.
Talking about ikea, I got in touch with their lab, complaining that for a company promoting eco responsibility, only selling battery powered sensor is not good.
The world could benefits from some power line connected sensors, like presence sensor to replace a wall switch. Or their remote that could also be a wired device to install instead of an existing wall switch.
They agreed but it is not in their philosophy to sell “raw” devices, that require some electrical knowledge. Sad.
Dimension 97 x 25 x 40mm
It is a good start on my journey to a wired in switch but I’d prefer something smaller. It is really beefy!
I’m glad you mentioned it so I know that such things exist, I’ve to get to the bottom of it now.
I don´t know if it is still relevant, but since the SAMOTECH Cord Dimmer is currently unavailable, I found “Zigbee dimmer for wire” from Light Solutions. I just ordered it and try to get it to run on my Home Assistant.
It is still relevant as I did not find yet what I was looking for.
But this one is like the SAMOTECH one, it is too big for my need as I don’t need the dimming option.
I’m waiting for sonoff (or shelly or any other) to sell a tiny enough relay to include in a printable switch.
I’m looking for something more like 2"x1" (2cm x 5cm)
Both of these will do what you’re asking for, but they’re about twice the size you wanted.
Posting anyway in case the form factor is still acceptable:
Thank you, I’m having a look at all the proposals, one day I’ll find the holy grail 
I was even looking at dismantling my sonoff micro but it is wifi, not zigbee. And 5V, not 220V
I did a small writeup on that first dimmer switch, in case it helps someone else down the line:
