I am setting up a mhcozy 4 channel wifi relay. which device on the smartlife app should i choose?

i use smart life and work great

I refuse to use apps and prefer to host my own. Can this be flashed with tasmota?

Who knows ! It might be easier to find an alternate controller

Is the power input polarity, reversible?

I power it with a USB plug like the one used for charging your phone. The USB spec is 5V DC. I'm guessing all of the power circuitry in the unit is also DC, so the answer would be no, but that's just a guess.

Can I use this to control a bathroom fan/heater/light combination unit?

You can but you need a low voltage power supply such as USB 5vdc or 5-25 ac/dc adapter.

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4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Tuya Smart life app Remote Control,Work with Alexa Google Home

4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Tuya Smart life app Remote Control,Work with Alexa Google Home

Product ID: 536177515

Details

Connector type
Crimp
Contact material
Silver
Contact type
Normally Open
Current rating
10 Amps
Mounting type
DIN Rail Mount

⚡10A high current relay rating

📶4-channel multi-protocol control

🔋Wide 5-32V DC input voltage

AR$121622

Duties & taxes included

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Upgrade your smart home game with 4-channel power and total control!

CUSTOMIZABLE AUTOMATION - Set timers, schedules, and modes (self-lock, momentary, interlock) tailored to your lifestyle
VOICE ACTIVATED CONVENIENCE - Works flawlessly with Alexa, Google Home & Siri for hands-free control
PLUG PLAY SMART INTEGRATION - Effortless setup with Tuya Smart Life app—no programming needed
POWERFUL RELIABLE SWITCHING - Handles up to 10A with silver contact relays for durable performance
SEAMLESS MULTI PROTOCOL CONTROL - WiFi, Bluetooth & 433MHz RF for ultimate remote flexibility

The MHCOZY 4 Channel Smart WiFi RF Bluetooth Relay Switch Module empowers you to control up to four devices independently via WiFi, Bluetooth, or 433MHz RF. Compatible with the Tuya Smart Life app and major voice assistants, it supports multiple working modes and schedules, operates on a wide 5-32V DC input, and handles up to 10A current with durable silver contacts—perfect for DIY smart home automation with professional-grade reliability.

Specifications

ASIN	B09M6HTDVS
Best Sellers Rank	108,707 in DIY & Tools ( See Top 100 in DIY & Tools ) 121 in Smart & Remote Controlled Plugs
Brand	MHCOZY
Coil Voltage	5 Volts (DC)
Connector Type	Crimp
Contact Current Rating	10 Amps
Contact Material	Silver
Contact Type	Normally Open
Country Of Origin	China
Current Rating	10 Amps
Customer Reviews	4.5 4.5 out of 5 stars (343)
Manufacturer	Mic technology co.,ltd
Manufacturer Part Number	TYVBCH4RF
Maximum Switching Voltage	32 Volts
Minimum Switching Voltage	5 Volts (DC)
Model Number	TY4CH
Mounting Type	DIN Rail Mount
Operation Mode	Automatic
Specification Met	ABS
Unit Count	1.0 count
Wattage	1 watts

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AR$121622

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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