The WK4A WiFi and Bluetooth Dual-Mode Smart Relay Switch Module is a compact and efficient solution designed for wireless control of home and industrial electrical loads. Operating on a wide DC 7–32V input range, this smart switch allows seamless control of AC 0–230V and DC 0–30V appliances, supporting up to 7A current. With compatibility to the eMicroLink mobile application, users can conveniently manage connected devices via WiFi (2.4G only) or Bluetooth for flexible operation.

The module’s dual-mode connectivity ensures stable performance even when WiFi is unavailable. Ideal for DIY automation, remote switching, and smart home integration, it offers reliable power handling of AC ≤1400W and DC 160W. Professional installation is recommended, and wiring instructions are available on the respective shopping platform. This versatile relay switch is perfect for modern automation projects requiring low-voltage control with high safety and durability.

Features:

1. Supports WiFi 2.4G and Bluetooth dual-mode control
2. Wide input supply: DC 7–32V
3. Controls AC 0–230V and DC 0–30V loads
4. Supports up to 7A control current
5. AC power handling up to 1400W, DC up to 160W
6. Works with eMicroLink application
7. Ideal for smart home and automation projects
8. Safe operation with professional installation recommended

Package Includes:

1 x WK4A WiFi and Bluetooth Dual-Mode Smart Relay Switch Module