Tuya WiFi / Zigbee 3.0 Smart Relay Module 16A, Mini In-Wall Switch for Alexa, Google Home & Smart Life

Turn Existing Lights and Electrical Devices Into Smart Controls

This compact Tuya smart relay module installs inside a wall box behind an existing switch, giving you convenient app, timer and voice control without replacing the entire switch panel.

Compact Smart Home Control

Upgrade traditional lighting and compatible AC-powered devices with a discreet smart relay designed for hidden in-wall installation.

Choose the WiFi or Zigbee 3.0 version to connect with the Tuya or Smart Life app and manage your connected device more conveniently from your smart home system.

Key Benefits

Tuya Smart Home Integration

Both versions support the Tuya or Smart Life ecosystem.

The WiFi version connects through a 2.4GHz WiFi network.

The Zigbee 3.0 version requires a compatible Zigbee gateway. A Zigbee gateway is required for Zigbee app connectivity.

Smart Control Features

App Control

Use Tuya or Smart Life to control the connected circuit through your smartphone.

Voice Control

Connect the relay to compatible Alexa or Google Assistant devices for hands-free control.

Timer Control

Set timers for more convenient automatic operation.

Schedule Mode

Create planned operating schedules for lighting or other compatible AC-connected devices.

Application Scenarios

Technical Specifications

Package Includes

Package contents depend on the product variant selected on this page. Please confirm your selected WiFi or Zigbee version before ordering.

Basic Installation and Setup

1. Install the compact relay module inside a suitable wall box behind the compatible switch panel.
2. Connect the relay to the intended AC circuit according to the product wiring configuration.
3. For the WiFi version, prepare a 2.4GHz WiFi network.
4. For the Zigbee version, prepare a compatible Zigbee gateway.
5. Open Tuya or Smart Life and complete device pairing for the selected version.

Troubleshooting Guide

WiFi version does not connect

Confirm that you are using a 2.4GHz WiFi network and that the selected product is the WiFi version.

Zigbee version does not appear in the app

Confirm that a compatible Zigbee gateway is available and connected to your Tuya or Smart Life system.

Voice control is unavailable

Confirm that the relay has already been added to Tuya or Smart Life and linked with your compatible Alexa or Google Assistant account.

Timer or schedule does not run as expected

Check the timer or schedule settings inside the Tuya or Smart Life app.

Important Notes

WiFi version: Supports 2.4GHz WiFi.

Zigbee version: Requires a compatible Zigbee gateway.

Maximum load: 16A. The stated 3680W rating applies at 230V.

Voltage: AC 100-240V, 50/60Hz.

No waterproof or IP rating is specified for this product. Do not advertise or treat the module as waterproof.

Frequently Asked Questions

1. What is a Tuya smart relay module?

It is a compact smart switch module designed for hidden installation behind a compatible wall switch, allowing app-based control of a connected AC circuit.

2. What is the difference between the WiFi and Zigbee versions?

The WiFi version connects through a 2.4GHz WiFi network. The Zigbee 3.0 version connects through a compatible Zigbee gateway.

3. Does the Zigbee smart switch require a gateway?

Yes. The Zigbee version requires a compatible Zigbee gateway for smart app connectivity.

4. Does the WiFi smart switch require a hub?

The provided product information specifies direct 2.4GHz WiFi connectivity for the WiFi version and does not specify a separate WiFi hub requirement.

5. Which app works with this smart relay?

The module is designed to work with the Tuya or Smart Life app.

6. Does it work with Alexa?

Yes. The product information specifies compatibility with Alexa for voice control.

7. Does it work with Google Assistant?

Yes. It can integrate with compatible Google Assistant devices through the supported smart home ecosystem.

8. What is the maximum load of the smart relay?

The maximum specified load is 16A, with a stated maximum of 3680W at 230V.

9. What voltage does the smart relay support?

It is specified for AC 100-240V at 50/60Hz.

10. Can I install it behind an existing wall switch?

Yes. The module is designed as a compact in-wall smart switch that can be hidden behind a compatible switch panel.

11. How large is the smart switch module?

The specified module size is 42 x 42 x 20 mm and the specified weight is approximately 40 g.

12. Can I set timers and schedules?

Yes. Timer control and planned schedule modes are listed among the product's smart control functions.

13. Does the WiFi version support 5GHz WiFi?

The provided specification lists IEEE 802.11 b/g/n 2.4GHz WiFi. 5GHz support is not specified.

14. Is the smart relay waterproof?

No waterproof or IP rating is provided in the product specifications, so the module should not be described as waterproof.

15. What material is the relay housing made from?

The housing is specified as flame-retardant PC material with a V0 rating.

16. What certifications are specified for the smart switch?

The supplied product specifications list CE and RoHS.

Make Traditional Control Smarter

Add app control, voice integration, timers and schedules to compatible existing circuits with one compact smart relay module.

Choose WiFi or Zigbee Version

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