General description Smart Switch 4 Channel is a versatile WiFi and Bluetooth wireless dry contact relay module that allows you to control up to four electrical devices remotely through an app. It supports both iOS and Android mobile applications, providing real-time device status and enabling you to turn devices on or off from anywhere. The switch features three working modes: interlock, self-locking, and inching, allowing for flexible control of connected appliances such as lights, electric kettles, electric rice cookers, and electric curtains. Technical specifications Input voltage: AC 85-250V / USB 5V Max. current: 2000W / 10A per gang Max. load: 3500W / 16A for 4 gangs Wireless: Wi-Fi 2.4GHz b/g + Bluetooth Frequency radio: 2.4G Color: White Material: ABS Measurement allowed error: +/- 1-3cm Usage The Smart Switch can be used to remotely control various devices by sending pulse signals. Applications include: Turning on/off lights and lamps Controlling garage doors and door access