MHCOZY 4-Channel Smart Relay Module or MHCOZY 30A High Power Zigbee? Which MHCOZY Model to Buy
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When comparing the mhcozy 4 channel smart relay module vs 30a high power zigbee, you face a choice between versatility and raw power. Both units integrate with the Tuya ecosystem and support voice assistants like Alexa and Google Home. The main difference lies in their connectivity and capacity. One model offers multiple connection methods and four independent channels for diverse low-power tasks. The other relies on Zigbee for stable mesh networking and handles high-current loads up to thirty amperes for heavy appliances.
Key differences
| Aspect | MHCOZY 4-Channel Smart Relay Module | MHCOZY 30A High Power Zigbee Smart Switch |
|---|---|---|
| Connectivity | Wi-Fi and Bluetooth | Zigbee (Hub Required) |
| Max Load | Not listed | 30A |
| Channels | 4 Channels | Single Switch |
| Control Methods | App, RF Remote, Bluetooth | App, Voice, Scene Triggers |
| Dimensions | 3.15 x 1.18 x 3.15 inches | 4.3 x 1.54 x 2.17 inches |
Which one should you choose?
Choose MHCOZY 4-Channel Smart Relay Module if
- You need to control multiple separate devices from one module.
- You want to use RF remotes or Bluetooth without a hub.
- You are automating low-power items like blinds or small motors.
Choose MHCOZY 30A High Power Zigbee Smart Switch if
- You are controlling high-power appliances like water pumps or industrial motors.
- You already have a Zigbee hub and prefer a stable mesh network.
- You need a single, robust switch for heavy-duty electrical loads.
Verdict: Choose the 4-channel module if you need flexibility for multiple low-power devices and want to avoid needing a separate hub. Opt for the 30A Zigbee switch if your priority is handling high-current loads with a stable, hub-dependent network.
Relay Versatility vs Power Capacity
Connectivity
The MHCOZY 4-Channel Smart Relay Module offers flexible connectivity options, supporting both Wi-Fi and Bluetooth. This allows you to control it via the Smart Life app or use a 433MHz RF remote even if your Wi-Fi connection drops. In contrast, the MHCOZY 30A High Power Zigbee Smart Switch relies exclusively on the Zigbee protocol. This means you must have a Zigbee hub to connect it to your network. The 4-Channel module is more versatile for users without a hub, while the 30A switch requires specific hub infrastructure.
Power Capacity
When handling high-load appliances, the MHCOZY 30A High Power Zigbee Smart Switch is the clear choice. It is rated to withstand a maximum current of 30A, making it suitable for heavy-duty applications like electric doors, water pumps, motors, and industrial control equipment. The MHCOZY 4-Channel Smart Relay Module does not list a specific amperage rating in its specifications. For standard lighting or small appliances, the 4-channel unit may suffice, but for high-power needs, the 30A switch provides the necessary durability and safety margin.
Control Modes
The MHCOZY 4-Channel Smart Relay Module provides three distinct working modes: self-lock, momentary, and interlock switch. You can adjust the momentary time from two seconds to one minute directly in the Smart Life app. This flexibility is ideal for automating garage doors or shutters that require specific pulse durations. The MHCOZY 30A High Power Zigbee Smart Switch functions primarily as a standard on/off switch. While it supports scheduling and timers, it lacks the specialized momentary or interlock control modes found in the 4-channel relay.
Smart Home Compatibility
Both devices integrate well with major voice assistants and smart home platforms. The MHCOZY 4-Channel Smart Relay Module works with Alexa, Google Assistant, SmartThings, and Siri, alongside the Tuya/Smart Life app. The MHCOZY 30A High Power Zigbee Smart Switch also supports Alexa, Google Assistant, and Siri through the Tuya ecosystem. Both allow you to share control with family members and use voice commands. There is no significant difference in their compatibility with existing smart home setups, as both rely on the same underlying app infrastructure.
Physical Dimensions
Size and installation space differ between the two units. The MHCOZY 4-Channel Smart Relay Module measures 3.15 inches in length, 3.15 inches in width, and 1.18 inches in height. It features an ABS shell designed for DIN rail mounting in electronic boxes. The MHCOZY 30A High Power Zigbee Smart Switch is larger, measuring 4.3 inches in length, 2.17 inches in width, and 1.54 inches in height. If you have limited space in your electrical panel or switch box, the 4-channel module offers a more compact form factor.
Choose based on power needs
Users with high-power appliances
The 30A model handles heavy loads up to 30 amps. It supports motors, water pumps, and industrial control. You need a Zigbee hub for setup. It offers scheduled timing and real-time status sync via the Tuya app. This unit is built for durability and high current demands in your home automation system.
Users needing offline RF control
The 4-channel module includes a 433MHz RF remote. You can control devices even if Wi-Fi drops. It supports Bluetooth and Wi-Fi connectivity. You can set modes like self-lock or momentary. It fits DIN rail installation. This flexibility suits projects like garage doors or automated shutters where reliability is key.
Users wanting multi-device control
This module controls four separate channels. You can adjust momentary time from two seconds to one minute. It supports group control and family sharing. You can set sunrise schedules or countdowns. The compact size fits in electronic boxes. It is ideal if you need to manage multiple devices from one unit.
The products compared
MHCOZY 4-Channel Smart Relay Module
Best for: Multi-device DIN rail automation
- Smart Home Compatibility
- Alexa, Google Home, SmartThings, Siri
- Connectivity
- Wi-Fi, Bluetooth, 433MHz RF
- Switch Function
- Relay Switch
- Application
- Air Conditioners
- Dimensions
- 3.15 × 3.15 × 1.18 inches
View on Amazon: MHCOZY 4-Channel Smart Relay Module Affiliate link
This MHCOZY module offers four independent channels for smart home automation. It supports DC 5V and DC 7-32V input. You can control it via the Smart Life app, Bluetooth, or 433MHz RF remote. The device fits DIN rail mounting. It works with Alexa and Google Assistant. This setup suits users needing multiple outputs for garage doors or blinds.
Pros
- Four independent relay channels
- Supports DC 5V and 7-32V input
- Controls via app, Bluetooth, or 433MHz RF
- Compatible with Alexa and Google Assistant
- DIN rail mounting design
Cons
- Requires DC power supply
- Limited to 433MHz RF fixed code
- No Zigbee connectivity listed
Good fit if
- You need to control multiple devices independently
- You prefer app control with RF backup
- You have a DIN rail enclosure
Skip if
- You require Zigbee connectivity
- You only need a single channel
- You need AC power input only
Verdict: MHCOZY 4-Channel Smart Relay Module provides versatile multi-device control for users with DIN rail space. It suits those needing app and RF backup without Zigbee.
MHCOZY 30A High Power Zigbee Smart Switch
Best for: High-power appliances with existing Zigbee hubs
- Smart Home Compatibility
- Alexa, Google Assistant, Siri
- Hub Requirement
- Hub Required
- Connectivity
- Zigbee
- Switch Function
- On/Off Switch
- Maximum Load
- 30A
- Dimensions
- 4.3 × 2.17 × 1.54 inches
View on Amazon: MHCOZY 30A High Power Zigbee Smart Switch Affiliate link
This MHCOZY switch handles up to 30A, making it suitable for high-power appliances like water pumps and motors. It uses Zigbee connectivity, so you need a hub. The Tuya app lets you set schedules, countdowns, and loops. You can control it remotely or via voice assistants like Alexa and Google Assistant. It is a simple on/off switch for heavy-duty tasks.
Pros
- 30A maximum load capacity
- Zigbee connectivity for low power use
- Supports scheduled, countdown, and loop timing
- Compatible with Alexa and Google Assistant
- Real-time status sync in the app
Cons
- Requires a Zigbee hub to function
- Limited to basic on/off switching
- No local control without the app
Good fit if
- You need to control high-power devices like motors
- You already have a Zigbee hub
- You want to set automated schedules for appliances
Skip if
- You do not have a Zigbee hub
- You need dimming or color control
- You want direct WiFi connection without a hub
Verdict: MHCOZY 30A Zigbee Smart Switch is a solid choice for users with existing Zigbee hubs who need to manage high-wattage equipment like pumps or industrial controls through automated schedules.
Specifications side by side
| Spec | MHCOZY 4-Channel Smart Relay Module | MHCOZY 30A High Power Zigbee Smart Switch |
|---|---|---|
| Smart Home Compatibility | Alexa, Google Home, SmartThings, Siri | Alexa, Google Assistant, Siri |
| Hub Requirement | not stated | Hub Required |
| Connectivity | Wi-Fi, Bluetooth, 433MHz RF | Zigbee |
| Switch Function | Relay Switch | On/Off Switch |
| Maximum Load | not stated | 30A |
| Application | Air Conditioners | not stated |
| Dimensions | 3.15 × 3.15 × 1.18 inches | 4.3 × 2.17 × 1.54 inches |
| Model | TY4CH | WLSW01 |
| Color | not stated | White |
Frequently asked questions
Which MHCOZY relay module is best for DIN rail installation?
The MHCOZY 4-Channel Smart Relay Module is the top choice for DIN rail setups. Its compact dimensions of 3.15 inches in width and length make it easy to fit into standard electrical panels. It allows you to control multiple devices simultaneously, providing versatile automation for various home systems without taking up excessive space.
Can I control the 30A switch without a smartphone?
Yes, you can use voice commands with this model. It works with Alexa and Tuya, allowing hands-free operation through compatible smart speakers. However, it does not support Bluetooth or RF remote control like the 4-channel model. You must rely on voice assistants or the Tuya app for manual overrides and scheduling.
Does the 30A high power switch work with Google Home?
No, the MHCOZY 30A High Power Zigbee Smart Switch does not list Google Home compatibility. It supports Alexa and Tuya ecosystems. If you need Google Home integration, the 4-Channel Smart Relay Module is the better option as it explicitly supports Alexa, Google Home, and Tuya for broader smart home compatibility.
What is the maximum current capacity of the MHCOZY switch?
The MHCOZY 30A High Power Zigbee Smart Switch handles loads up to 30 amps. This high capacity makes it suitable for heavy-duty appliances such as water pumps, motors, and industrial controls. The 4-Channel module does not specify a single high-amperage rating, focusing instead on managing multiple lower-power circuits simultaneously.
Which model supports Bluetooth connectivity for local control?
The MHCOZY 4-Channel Smart Relay Module supports Bluetooth connectivity. This feature allows you to control the device locally via the Tuya app even if your Wi-Fi network is down. The 30A Zigbee model relies on a Zigbee hub for communication and does not offer Bluetooth direct connection capabilities for setup or control.
Is the 30A switch compatible with existing Zigbee hubs?
Yes, the MHCOZY 30A High Power Zigbee Smart Switch is designed for users with existing Zigbee hubs. It integrates seamlessly into Zigbee networks for automated scheduling and real-time status updates. You will need a compatible hub to pair the device, unlike the 4-channel model which connects via Bluetooth and Wi-Fi.