This product offers flexibility and remote control options for various applications, including home automation and motor control. The ability to switch between different working modes and the support for interlock mode in multi-gang versions makes it suitable for a range of scenarios.

1. Operating Modes: This device supports three different working modes:
   • Momentary (Inching) Mode: In this mode, you can select between two wiring options:
     • Turn on for 1 second and then automatically turn off.
     • Turn off for 1 second and then automatically turn on.
   • Self-Locking Mode: In self-locking mode, you can remotely turn connected devices on or off immediately.
   • Interlock Mode: Interlock mode is available for 2-gang and 4-gang versions. It allows you to remotely control AC/DC motors.
2. Remote Control: Users can add the device to the TUYA mobile app to remotely control connected home appliances or power circuits. This app is available for both Android and iOS platforms.
3. Relays: The relays in this device act as switches without output. They are designed to control power circuits, and the power supply input (AC/DC) is for the printed circuit board assembly (PCBA).
4. Manual Mode Selection: You can manually change the working mode by tapping the mode setting button on the device.
5. Interlock Mode: In the case of 2-gang and 4-gang versions, interlock mode allows for remote control of AC/DC motors. This can be useful for applications such as controlling curtains, blinds, or other motorized devices.