QS-WIFI-S04-2C 2-Channels Switch Module is designed to transform your traditional switch to Wi-Fi switch that allows the connected device to be controlled via a smart phone as well as a traditional switch.
Bluetooth type is optional:
QS-BLE-S04-2C Tuya Bluetooth switch module
QS-WIFI-S04-2C 2-Channels Switch Module
1, It's easy to make your traditional switch smart. It can also work with your exist 3-way switch, just install 1 switch module, suit for EU/UK switch box.
2, Wirelessly control your lights or devices. Work with Amazon Alexa/Echo Dot, Google Home &IFTTT.
3, Work with "Smart Life/Tuya" android/iOS App. Create multiple schedules to turn on/off your electronic sets.