Done. Needed the transformation file. So in general an excellent product. Considering it was on sale for 5$ at itead… And ESPEASY gives a lot of possibilities together with MQTT
Switch esp01 "Розетка" <poweroutlet> {mqtt=">[mqt:/esp01/gpio/12:command:ON:1],>[mqt:/esp01/gpio/12:command:OFF:0],<[mqt:/esp01/Relay/Switch:state:MAP(1on0off.map)]"}