Smart Switch TUYA HS084004 1-Channel Wi‑Fi 10A DC 7–32V

The TUYA HS084004 is a 1-channel smart self-locking relay and switch designed for DIY automation of DC-powered devices. It provides Wi‑Fi and RF control options and connects to the Tuya Smart or Smart Life mobile apps for remote operation, voice assistant integration, scheduling and scene creation. The module accepts DC supply from 7 to 32 V and supports loads up to 10 A. It does not measure or report energy consumption.

Advantages

This smart switch offers multiple control methods — app control via Wi‑Fi, RF remote, voice assistants, manual operation and timed schedules — with device state synchronization across control interfaces. It supports creation of scenarios and device grouping, has a micro USB power input for convenient supply, and works with Amazon Alexa and Google Assistant for hands-free control. The unit is compact and suitable for integrating into TUYA-compatible smart home setups.

Suitable for

• Remote switching of DC loads such as LED strips, fans, small pumps or motors within the specified voltage and current range
• Integration into Tuya Smart or Smart Life ecosystems for centralized control and automation
• Use cases requiring scheduled actions, scenes or grouped device control

When it may not be suitable

This relay is not intended for AC mains switching at line voltages or for loads that exceed 10 A or the specified DC voltage range. It also does not provide energy consumption metering, so it is unsuitable where power monitoring or billing-grade measurement is required.

Key specifications

• Supply voltage: DC 7–32 V (USB power input 5 V via micro USB)
• Maximum switching current: 10 A
• Maximum power at rated conditions: 2200 W
• RF control frequency: 433 MHz
• Wi‑Fi: 2.4 GHz, 802.11 b/g/n
• Number of channels: 1
• Operating temperature: −20 °C to 70 °C
• Operating humidity: 5 %–90 % RH
• Physical dimensions: 69 × 41 × 20 mm
• Color: white
• Certification: CE, RoHS

How to use

Power the module from a DC source within 7–32 V or via the micro USB 5 V input, connect the load to the relay output according to standard wiring practices, and pair the device with the Tuya Smart or Smart Life app over a 2.4 GHz Wi‑Fi network. You can also pair RF remotes on the 433 MHz band for local control. After pairing, configure schedules, scenes or device groups in the app and, if desired, link the device to Amazon Alexa or Google Assistant for voice control.

What to consider before purchase

• Ensure the load is DC and within the 7–32 V input range
• Confirm the device current draw does not exceed 10 A
• Check that your Wi‑Fi network uses 2.4 GHz (802.11 b/g/n)
• Plan for no built-in energy consumption metering
• Verify RF remote frequency compatibility (433 MHz) if local RF control is required

Usage recommendations

Use wiring and fuses appropriate to the load current, avoid connecting inductive loads above the relay rating without proper suppression, and test integration in a safe environment before permanent installation. Keep firmware and the Tuya/Smart Life app updated for best compatibility and security.