---
product_id: 300167258
title: "2 Channel 5V 12V ZigBee Smart Relay Switch,Adjustable Self Lock and Momentary Interlock Working Mode,Works with Tuya eWelink Zigbee Gateway, Alexa, Google Home (ZigBee Hub Required)"
brand: "mhcozy"
price: "£24.23"
currency: GBP
in_stock: true
reviews_count: 9
category: "Mhcozy"
url: https://www.desertcart.co.uk/products/300167258-2-channel-5v-12v-zigbee-smart-relay-switch-adjustable-self
store_origin: GB
region: Great Britain
---

# Supports 5V & 7-32V power input ZigBee wireless for stable, low-latency control 2-channel relay control 2 Channel 5V 12V ZigBee Smart Relay Switch,Adjustable Self Lock and Momentary Interlock Working Mode,Works with Tuya eWelink Zigbee Gateway, Alexa, Google Home (ZigBee Hub Required)

**Brand:** mhcozy
**Price:** £24.23
**Availability:** ✅ In Stock

## Summary

> 🏠 Elevate your smart home game with MHCOZY’s dual-channel ZigBee relay — power, precision, and voice control in one sleek switch!

## Quick Answers

- **What is this?** 2 Channel 5V 12V ZigBee Smart Relay Switch,Adjustable Self Lock and Momentary Interlock Working Mode,Works with Tuya eWelink Zigbee Gateway, Alexa, Google Home (ZigBee Hub Required) by mhcozy
- **How much does it cost?** £24.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/300167258-2-channel-5v-12v-zigbee-smart-relay-switch-adjustable-self)

## Best For

- mhcozy enthusiasts

## Why This Product

- Trusted mhcozy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Mode Mastery:** Switch between self-lock, momentary, and interlock modes to customize control for lights, motors, and more.
- • **Dual-Channel Powerhouse:** Control two devices independently or simultaneously with seamless 2-channel relay switching.
- • **ZigBee Stability & Speed:** Bypasses WiFi congestion with ZigBee protocol for ultra-responsive, rock-solid smart home automation.
- • **Voice-Activated Convenience:** Full Alexa & Google Home integration lets you command your devices hands-free, anytime, anywhere.
- • **Universal Voltage Flexibility:** Operates effortlessly on both USB 5V and AC/DC 7-32V power sources for versatile installation.

## Overview

The MHCOZY 2 Channel ZigBee Smart Relay Switch offers robust dual-channel control with flexible power input options (5V USB or 7-32V AC/DC). Designed for seamless integration with Tuya and eWelink ZigBee hubs, it ensures stable, low-latency wireless operation that avoids WiFi network overload. Compatible with Alexa and Google Home, it supports voice commands and remote app control. Featuring three operational modes—self-lock, momentary, and interlock—it adapts to diverse smart home needs including lighting, motorized curtains, and garage doors. Compact and energy-efficient, this relay switch is a versatile upgrade for any connected home setup.

## Description

MHCOZY ZigBee Smart Switch, DIY Smart Homel,Control your home appliances or electrical devices anytime and anywhereWhy Choose Zigbee? Absolute data privacy , Echo Plus voice pairing directly without worrying about data collection.Easy To Install,support ewelink Zigbee Bridge,Tuya Smart life zigbee gateway hub.Please noted the UI is 1 channel only in alexa and other Zigbee hub,you can 1 key to turn on/off both channel,can't remote individuallyFeatures: Two working voltage: USB 5V or AC/DC 7-32V Power <1W, and quiescent current:80mA Cutover current<10A , Cutover voltage<250V 10A Relay Model Working Temperature: -40 to 70 degree Working Humidity: 40% to 80% RH Function: 1. Default inching Function: Press the open relay by mobile phone, then cut off the pull-on immediately(default one second) 2. Self-locking mode: trigger to Turn on/off connected devices 3.Interlock mode,wifi remote motor forward and reverse Voice control Wifi smart switch can work perfectly with Alexa-enabled devices like Echo/Tap/Dot, as well as Google home. Just with a simply voice command, Alexa or Google Assistant will work for you, turning on/off the connected devices at once. Control home appliances or electrical devices with your voice like this:“Alexa, turn on the light.” “Alexa, turn on Garage door.” “Hey Google, turn off the bedroom light.” “ Package included: 1 x ZigBee Wireless Smart Home Relay Switch1 x English Instruction

Review: Works great, nice to have a good DC combo option - Works very well. Four relay channels, each have their own isolated common, NO, NC lines, which do not have to be fed by the same source. The controller itself may be powered with either 5v via μUSB, or variable DC u(7-32v) supplying a switching regulator cluster onboard. The relays can operate in three mode types, latching (switched on or off, remains until commanded otherwise), a pulse (momentary on for a second, then off), and a third mode I haven't nailed down yet because I don't have a need for it (and documentation is ambiguous). Each channel may operate independently as independent devices on most hubs, AFAIK. However, installation/pairing will probably be slightly outside of what most users expect, and the documentation is very limited. For Hubitat, which is what I use as my core on a very large multiprotocol network, this took some time until I found some information on a dark corner of the web. This is non intuitive: Pair the controller as a whole, change the driver to generic multi endpoint controller type, the child devices should immediately self-enumerate. If you do not change the driver, there's so.s very confusing results. I don't think it's worth it to even try to operate the controller as a single unit with complicated addressing (or if it's even possible that way). After you have changed the driver and the hub core recognizes the four endpoints, there are still some flags that can be sent to the parent unit for various things, but I have not looked into it. Once this is done, treat the four child devices as their own standalone switches, and you're set. You can change the base mode by pressing the mode button on the unit. I'm keeping this set as latching on/off, and I'm using the four channels to control zone lighting in my office. Probably all 12v, from a common power supply for all of the LED lights and the controller. I may opt to use 24VAC instead, but for anyone reading this, keep in mind, this is NOT the AC controller as far as powering the controller itself. You can run whatever you want within rating of the relays for each channel, but the controller MUST be red with DC. Fair price, looks to be of good manufacturing quality, looks good all around. I may get more.
Review: Works with Home Assistant for automated garage door opener. Instructions are poor. - First of all, this is a nice zigbee relay for a fair price which was delivered quickly, I do recommend it. I bought this to automate my garage door using Home Assistant and it works great. The device identifies as an eWeLink ZB-SW01. Mine came with a case which was a nice surprise (received on 12/29/2022) The instructions were nearly useless, not completely useless because they did help get the fire going in our firepit. Despite the poor instructions, it paired with my Nortek HUSBZB-1 stick instantly and is very responsive. The relay was in "momentary" mode when I got it so no changes were required. I am using the USB input for power which is very convenient. The relay's I/O has 3 terminals: a Common in the middle, a normally closed on the right, and a normally open on the left which is what I used with our old basic genie garage door opener. The relay is toggled for a default of 1 second when in momentary mode is selected which I think they are referring to in the product description as function 1 "inching" (what the heck is "inching"?) as seen here: (From original Product description) Function: 1. Default inching Function: Press the open relay by mobile phone, then cut off the pull-on immediately(default one second) 2. Self-locking mode: trigger to Turn on/off connected devices My interpretation of this would be- Function: 1. Default - Momentary mode: When triggered, the relay will operate for 1 second and then reset to its initial condition. 2. Toggle mode: When triggered, the relay will change states and hold until the next toggle command is received. This device paired very easily, I simply initiated "add a new device" in home assistant and it found the relay without any interaction on my part; it did add the device in the domain of "light" rather than "switch". There are a few workarounds for this, I chose to add a small bit of code to my configuration.yaml as follows (using the IEEE value of your device in place of this example)- ###starting zigbee configuration code zha: device_config: 84:71:27:ff:fe:93:17:24-1: # format: {ieee}-{endpoint_id} type: "switch" # corrected device type ###Ending Zigbee configuration code After adding this to configuration.yaml, reboot home assistant and then go to the zigbee integration and open this relay device. I found that the original device was still showing in the middle of the page under the CONTROLS section but in a state of error stating something like "this device is not longer available to zha...". The new "switch" device was now present under the original "light" device so I simply opened the old failed light device by clicking on it, chose the settings tab from the popup window, and then delete down in the bottom left. Now everything was exactly the way I wanted it and I was able to utilize the "switch" in my garage door automation.

## Features

- 2 Channel Smart Wireless Zigbee Relay Switch,work with tuya zigbee hub.Easy set up,work with Tuya Smart life Zigbee Gateway hub.Once configured with tuya app,then link to alexa app,then you can voice control each channel.If it's connected to alexa app directly through echo device with zigbee hub,it will be discovered as 1 channel only.
- Smart app remote turn on/off anywhere,Why zigbee?Have a bunch of devices on your Wifi network？Overcrowded home Wifi network, internet becomging less stable？No worries! Hub + Zigbee, Very responsive, fast switching, more stable
- Voice Control,works with desertcart Alexa and Google home devices for complete voice control, remote control and Intelligent timing. Free your hands.With 433Mhz RF receiver built in,support fixed learn 433Mhz RF(don't included)
- Working voltage DC 5V or AC/DC 7-32V.3 workd mode,change mode by pressing mode button on board.work as a wireless zigbee switch in self-lock mode,as smart zigbee button in momentary mode, wireless remote Forward and Reverse for Motor Linear Actuator.Automate your motorized Curtain Blind with interlock, mode.alexa integrate your home automation
- Timer and schedule.set countdown/loop timer schedule for convenient life,happy share

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08YY7XFS3 |
| Best Sellers Rank | #57,516 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #625 in Electrical Outlet Switches |
| Brand | MHCOZY |
| Coil Voltage | 12 Volts |
| Connector Type | Through Hole |
| Contact Current Rating | 0.05 Amps |
| Contact Material | Metal |
| Contact Type | Dry Contact No Nc Com |
| Current Rating | 0.05 Amps |
| Date First Available | March 15, 2021 |
| Item Weight | 1.6 ounces |
| Item model number | ZIG2CH |
| Manufacturer | Mic technology co.,ltd |
| Maximum Switching Current | 10 Amps |
| Maximum Switching Voltage | 32 Volts |
| Minimum Switching Voltage | 7 Volts (DC) |
| Mounting Type | Surface Mount |
| Operation Mode | ON OFF |
| Product Dimensions | 4.92 x 1.77 x 0.91 inches |
| Specification Met | CE |
| Wattage | 120 watts |

## Product Details

- **Connector Type:** Through Hole
- **Contact Material:** Metal
- **Contact Type:** Dry Contact No Nc Com
- **Current Rating:** 0.05 Amps
- **Mounting Type:** Surface Mount

## Images

![2 Channel 5V 12V ZigBee Smart Relay Switch,Adjustable Self Lock and Momentary Interlock Working Mode,Works with Tuya eWelink Zigbee Gateway, Alexa, Google Home (ZigBee Hub Required) - Image 1](https://m.media-amazon.com/images/I/61AFTyWrDaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great, nice to have a good DC combo option
*by D***H on November 3, 2025*

Works very well. Four relay channels, each have their own isolated common, NO, NC lines, which do not have to be fed by the same source. The controller itself may be powered with either 5v via μUSB, or variable DC u(7-32v) supplying a switching regulator cluster onboard. The relays can operate in three mode types, latching (switched on or off, remains until commanded otherwise), a pulse (momentary on for a second, then off), and a third mode I haven't nailed down yet because I don't have a need for it (and documentation is ambiguous). Each channel may operate independently as independent devices on most hubs, AFAIK. However, installation/pairing will probably be slightly outside of what most users expect, and the documentation is very limited. For Hubitat, which is what I use as my core on a very large multiprotocol network, this took some time until I found some information on a dark corner of the web. This is non intuitive: Pair the controller as a whole, change the driver to generic multi endpoint controller type, the child devices should immediately self-enumerate. If you do not change the driver, there's so.s very confusing results. I don't think it's worth it to even try to operate the controller as a single unit with complicated addressing (or if it's even possible that way). After you have changed the driver and the hub core recognizes the four endpoints, there are still some flags that can be sent to the parent unit for various things, but I have not looked into it. Once this is done, treat the four child devices as their own standalone switches, and you're set. You can change the base mode by pressing the mode button on the unit. I'm keeping this set as latching on/off, and I'm using the four channels to control zone lighting in my office. Probably all 12v, from a common power supply for all of the LED lights and the controller. I may opt to use 24VAC instead, but for anyone reading this, keep in mind, this is NOT the AC controller as far as powering the controller itself. You can run whatever you want within rating of the relays for each channel, but the controller MUST be red with DC. Fair price, looks to be of good manufacturing quality, looks good all around. I may get more.

### ⭐⭐⭐⭐⭐ Works with Home Assistant for automated garage door opener. Instructions are poor.
*by M***M on December 30, 2022*

First of all, this is a nice zigbee relay for a fair price which was delivered quickly, I do recommend it. I bought this to automate my garage door using Home Assistant and it works great. The device identifies as an eWeLink ZB-SW01. Mine came with a case which was a nice surprise (received on 12/29/2022) The instructions were nearly useless, not completely useless because they did help get the fire going in our firepit. Despite the poor instructions, it paired with my Nortek HUSBZB-1 stick instantly and is very responsive. The relay was in "momentary" mode when I got it so no changes were required. I am using the USB input for power which is very convenient. The relay's I/O has 3 terminals: a Common in the middle, a normally closed on the right, and a normally open on the left which is what I used with our old basic genie garage door opener. The relay is toggled for a default of 1 second when in momentary mode is selected which I think they are referring to in the product description as function 1 "inching" (what the heck is "inching"?) as seen here: (From original Product description) Function: 1. Default inching Function: Press the open relay by mobile phone, then cut off the pull-on immediately(default one second) 2. Self-locking mode: trigger to Turn on/off connected devices My interpretation of this would be- Function: 1. Default - Momentary mode: When triggered, the relay will operate for 1 second and then reset to its initial condition. 2. Toggle mode: When triggered, the relay will change states and hold until the next toggle command is received. This device paired very easily, I simply initiated "add a new device" in home assistant and it found the relay without any interaction on my part; it did add the device in the domain of "light" rather than "switch". There are a few workarounds for this, I chose to add a small bit of code to my configuration.yaml as follows (using the IEEE value of your device in place of this example)- ###starting zigbee configuration code zha: device_config: 84:71:27:ff:fe:93:17:24-1: # format: {ieee}-{endpoint_id} type: "switch" # corrected device type ###Ending Zigbee configuration code After adding this to configuration.yaml, reboot home assistant and then go to the zigbee integration and open this relay device. I found that the original device was still showing in the middle of the page under the CONTROLS section but in a state of error stating something like "this device is not longer available to zha...". The new "switch" device was now present under the original "light" device so I simply opened the old failed light device by clicking on it, chose the settings tab from the popup window, and then delete down in the bottom left. Now everything was exactly the way I wanted it and I was able to utilize the "switch" in my garage door automation.

### ⭐⭐⭐⭐⭐ Works well with Hubitat Elevation C-8 Pro
*by M***K on October 29, 2025*

This 4-channel Zigbee relay was easy to install, I'm using it to add remote control to overhead doors in a multi-car garage. It installs like any other Zigbee device. After initial installation navigate to the Hubitat "Devices" menu and change the device driver to "Generic Zigbee Multi-Endpoint Switch" to make the four relays accessible as individual switches. Unlike the WiFi relay I was using previously with Google Home, this one does NOT close the relay (and thus open the doors) when power comes back after a power failure. I'm very pleased with it.

## Frequently Bought Together

- MHCOZY 2 Channel 5V 12V ZigBee Smart Relay Switch,Adjustable Self Lock and Momentary Interlock Working Mode,Works with Tuya eWelink Zigbee Gateway, Alexa, Google Home (ZigBee Hub Required)
- THIRDREALITY Zigbee Smart Garage Door Tilt Sensor, Adjustable Sensitivity Levels, 2-Year Battery Life, Zigbee Hub Required
- THIRDREALITY ZigBee Smart Plug 4 Pack with Real-time Energy Monitoring,15A Outlet, Zigbee Repeater,ETL Certified,ZigBee Hub Required,Work with Home Assistant,Compatible Echo Devices and SmartThings

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*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-22*