Smart WiFi Control: 4-channel smart relay module allows independent control of up to four circuits via WiFi, giving you flexible management of lights, motors, pumps and other devices from anywhere. Wireless Phone Remote Control: Connects to your 2.4GHz WiFi network and works with the eWeLink app for iOS and Android, enabling remote ON/OFF, status monitoring and configuration through your smartphone or tablet. Multi-Scene Use: Ideal for smart home lighting, access control, garage doors, irrigation systems, HVAC relays and other low-voltage control scenarios that require safe and reliable switching. Easy Installation & Wiring: Compact PCB design with clearly marked input and output terminals for straightforward wiring; can be mounted inside junction boxes, control cabinets or DIY enclosures. Share & Group Control: Through the eWeLink app you can share device control with family members and group multiple switches together for unified control of different rooms or zones. Color: As Shown Material: Plastic+Metal Package Contents: 1*Relay module 1*Remote controller