i think the switch is defective

@B.Will I swapped them but then the switch wont even turn on.. do you think the switch is defective?

@B.Will Thanks, will try that tonight. I just want to be clear, the switch itself has power right now with this setup.

@B.Will I only took after pictures.

So just replaced an existing Dimmer switch with TP Link HS220. Managed to get the Switch itself to power on but the 10 potlights dont turn on. Very Odd since they turned on with the dumb dimmer...