[Solved] Switch lamp on and off with radio button 433Mhz

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Hello,
I have a 433Mhz (radio button), which I would like to take as a switch for a lamp to turn on and off.
I have created a status variable ($taster-state) which stores the status (on or off) of the lamp.
Then I have two rules to switch on and off created:

Rule lamp on:
When presence of taster = present and $taster-state = "off" then switch lamp on and set $taster-state to "on"

Rule lamp off:
When presence of taster = present and $taster-state = "on" then switch lamp off and set $taster-state to "off"

Unfortunately, this does not work because the lamp is now flashing. Where could my error lie?

Edit: I had forgotten, want to switch a Yeelight lamp.

@top44 i always have problems with these kind of rules. Could you try AND IF instead of AND?

Why are you using presence?
If you press the Button the Device will be present for a while.
The Light will be switched on and off till the Button is absent

Gruß M.

@Gleno0h if I try it with AND IF the same problem.

@Michael Rudek i use Presence because that is a button and no switch. So I save the state of the lamp in an extra variable ($taster-state). Unfortunately this does not work as I want. Does anyone else have an idea.

Edit:
Now it goes with the following rule and protocol PIR6:

when button is present then toggle lamp

Thanks to all