I want to replace my current light switch with a TP Link HS220 (smart switch with dimmer), but I’m confused about current wiring.
I believe top wires go to the light and bottom is the source.
Am I right thinking top wires (black/red/white) are hot/load/neutral and bottom wires (black/white) are hot/load? If so, why is the top neutral pigtail with bottom load? Also, I don’t understand the pigtail and how the black is wired on the switch.
I have no idea when wiring was done, but house was built in 1970. I successfully installed others TP Link HS200 on the same floor.
Is it possible to install the TP Link HS220?