Hello,

I installed HS 200 and connected it to wifi and Kasa app. I hear a click whenever I turn it on (physical or from app). However it doesn't turn my light on. I replaced it with the only switch that controls my patio light. The only unknown to me is if I swapped the live and neutral since both wires coming into my original switch were black so I couldn't make out. 
I am well experienced with installing and replacing switches but not sure why this is not working. Any suggestions? 
 

thanks,

kunal