1. Intelligent Feedback Switch Features builtin overvoltage/undervoltage protection, current limiter, timer switch, leakage breaker, power meter, and feedback function. Realtime statistical data display shows power, voltage, current, and leakage values on a single interface without switching. 2. Mobile WiFi Control Place the digital feedback switch in a WiFi environment for remote control using the Tuya Smart mobile app. Controlling multiple devices simultaneously is simplified. 3. Rail Design Easy to install and use; can be installed in a distribution box or wall control. Compact structure saves installation space. 4. Safe and Reliable Independent Tuya smart chip provides stable performance, output, and faster data calculation. The button is paired with a physical intelligent alarm for safer use. 5. PC Material Shell The feedback monitoring relay is tough, durable, flameretardant, waterproof, and moistureproof, effectively preventing corrosion and damage to internal components. Features Frequency: 50Hz Rated Current: 63A Rated Voltage: 220V Reconnection Time: 1099s (standard 30s) Time Control Range: 1 minute to 168 hours Number of Time Groups: 30 on/30 off Leakage Protection Value: 1099mA