TP-Link - Tapo Smart Light Switch,

Make the Seamless Switch to Smart Living.
Tapo Smart Switch

Control Anyway You Want
Make your traditional lighting smart with the Tapo Smart Switch. Turn your lights on and off with your voice, or control them from your phone. Thanks to the switch's battery-powered design with 1+ year battery life, enjoy the smart lifestyle without rewiring your home or replacing your current bulbs.

Works for Most House and Appartment
Tapo smart switch does not require the Neutral wire. No need to rewire, just like traditional dumb switches. Normal smart switch requires the Neutral wire to work. 90% of families need an eletrician to rewire before they can install the switch.

Worry-Free Maintenance
Tapo smart switch uses two AAA/LR03 batteries. The tool-less battery replacement design allows you to do it by yourself.