Bestbuy offers TP-Link - Kasa Wi-Fi Smart Light Switch - White for $13.99 (orig. $19.99) plus $5.49 shipping.

Product Description:
Controlyour home's lights from your smartphone with this TP-Link smart lightswitch. Automation of lights is programmable for home security or yourconvenience, and voice control is available through Amazon Alexa orGoogle Assistant. Set the random mode to make your home look lived-inwhen you're away with this TP-Link smart light switch.