@Senior_Vagabond You shouldn't have any issues at all with screw on covers Here's one of mine, a 3-gang with a Dimmer and 3-way Kasa plus a regular non-smart switch Left to Right HS220 Dimmer, Dumb,...

@Senior_Vagabond Can you explain further what is not fitting? Perhaps you can add some images that show your switches installed in the switch-box and your Leviton Adapter and Outer Cover and indicate...

@Dre_kasa You must have confused one of the line or load wires I can see one wire nut with three black wires and two nuts with two wires - that is essentially what you want to end up but you possibly...

@Sagravius Ensure you are connecting it at the 'line' end of the chain - that is the switchbox that the power coming from the breaker comes into. The 'load' end is the one that goes to the light...

@Tony - Does no-one from TP-Link care about this junk polluting your forum????

@LRV2021 A couple of questions: How strong is your Wifi signal specifically at each of the switch install locations? You can get some idea by using your phone as close to the switch as possible and...