Switch or Bulb
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4CH Smart Relay Switch Module: Voice and App Control
This 4-channel Wi-Fi smart switch lets you control lights, pumps, or routers from your phone or voice. Use it to turn off a forgotten garage light or schedule your porch lamp for dusk. It works with Alexa and Google Home for hands-free operation.
Unlike basic switches, this module offers three working modes: self-locking (standard on/off), interlocking (one circuit on, others off), and inching (momentary trigger). This flexibility is ideal for applications like motor control or gate openers. The RF 433MHz remote adds a physical control option, so you can turn devices on/off without pulling out your phone.
Installation is straightforward with clear wiring diagrams, and the compact 75x73x17mm module fits behind existing wall plates. Share access with family through the Tuya app so everyone can control the schedule or turn things off from anywhere.
Features
- Works with Alexa/Google Home
- Timing function with schedules
- Three working modes
- Family sharing via app
- Simplified wiring interface
- Voice and App Control
General specs
- Seller: Banggood
- ID: 2050605
- Size: 2.95x2.87x0.67 inches
- Channels: 4
- App Control: Yes
- Voice Control: Amazon Alexa, Google Home
- Working Modes: Self-locking, Interlocking, Inching
- Family Sharing: Yes
- Load Max Total: 3500W
- Timing Function: Yes
- Package Includes: 1 x Wi-Fi Smart Switch Module
- Wireless Protocol: Wi-Fi 2.4GHz, RF 433.92MHz
- Input Voltage (AC): 85-265V
- Input Voltage (DC): 7-32V
- Channel Load Max Per: 2000W, 3500W
- Operating Temperature: -4°F to 158°F
- Channel Current Max Per: 10A
- First listed by seller: 4/25/26
If you are interested in more details, you can find full information on the seller's page.
$12.88
Last price update: 5/9/26
Available to order
Price History for seller Banggood
| Date | Price |
|---|---|
| 5/9/26 | $12.88 |
| 4/25/26 | $12.82 |
Shipping options
Delivery to 
Russia
Russia
Available
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| Brand | Bloom Habitat | Artesano Home | eWeLink | SoleVibe Shoes | Bloom Habitat | |
| Model | Tuya | KR2201BY | ||||
| Color |
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| Rating | ||||||
| Price | $12.88 | $11.75 | $21.58 | $12.88 | $54.51 | $17.62 |
| Seller | Banggood | Joom | Joom | Banggood | Joom | Joom |
| Update | May 9, 2026 | Feb 14, 2026 | Feb 14, 2026 | May 9, 2026 | Feb 14, 2026 | Feb 14, 2026 |
| Control Method | Wireless Remote Control | Mobile App (eWeLink) | Remote Control, Wireless Switch Module | |||
| Voice Assistant Compatibility | Google Home, Alexa, Yandex Alice | Alexa, Google Home | Yandex Alice, Alexa, Google Home | |||
4CH Smart Relay Switch Module Voice and App Control
$12.88
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