Domoticz

When I turn off my switch, it still gives a bit of current. While I expect the voltage to be zero.
I noticed this because one of my lights (with candle-style bulbs) was shimmering when it should be off.

I set out to investigate, and found that:
- if the switch is turned on, it gives 230V (as expected)
- if the switch is turned off, if gives about 30V (excepted: 0V)

First I thought this was because I use those cheap Action-switches (10 euro's for 3 switches if I remember correctly), but even my KAKU-switches have the same behavior. Is this something I should worry about? Any idea how much electricity this consumes?

Do you measure this also with the bulb connected? That should not happen

I measured this by directly putting my multimeter into the holes of the socket, without a light. This does not change anything right: there is a voltage difference between the two holes, so as soon as you connect a wire (or a light) between them, there will be a current. Very strange that I have this with two different brands; I have not checked the other devices yet (I have 12 actions-switches and 3 KAKU-switches), since I first wanted to check if this is expected behavior.

It could be that there is something in the circuit (capacitor), but depends on the circuit schematic. Without that it's hard to tell what is going on.

But it should NOT be the case that there is a Voltage difference when turned off, right? Neither a current (even a small one) when a bulb is attached.
I was in doubt because I saw the same behaviour in both devices.

hello, i noticed this also with these cheap switches
https://www.aliexpress.com/item/Crystal ... 0.0.r8mtH7

so if you have some low power led you see some shimmering...
maybe its not 30V but i definitely see some light...

@devros I see this with both the expensive Kaku and the cheap action switches. That's why it confuses me.