[Capabilities Requirement] The smart ceiling fan switch is not compatible with fans that have a built-in remote control system. Maximum load is 2A, supporting 5 fan speed levels. Operates only on 2.4GHz Wi-Fi networks (not compatible with 5GHz). Designed for single-pole installation only (not for 3-way applications). A neutral wire is required.[Hands-free Voice Control] Works with Alexa and Apple HomeKit for voice control.[Remote Control and Scheduling] Control your ceiling fan remotely using the app. Set timers or countdown schedules to automatically turn the fan on or off at specified times.[Power-on State Setting] Customize the power-on behavior via the app: "Power-on State" ON: Fan automatically turns on after power recovery at default 3-speed setting. "Power-on State" OFF: Fan requires manual restart after power recovery.App Control Features: On/Off, Speed Adjustment, Timer Settings Schedule, Timer, and User Sharing Capabilities Compatible with Alexa Compatible with Apple HomeKit Important Notes: 1. This switch is not compatible with ceiling fans that have a built-in remote control system. 2. Maximum load capacity is 2A (supports 5 speed levels). 3. Connect only to 2.4GHz Wi-Fi networks (not compatible with 5GHz). 4. Neutral wire must be present for installation.Specifications: Model Number: Smart Wifi Fan Switch Mechanical Life: 10,000 cycles Product Name: Smart Rotary Ceiling Fan Switch Maximum Power: 250W Dimensions: EU Standard 86x86x45mm Operating Temperature: -10C to 45C Wireless Standard: IEEE 802.11 b/g, 2.4GHz Wi-Fi Wiring Requirements: Line and Neutral App Name: Tuya Color: White Material: Plastic Package Contents: 1 x Smart WiFi Fan Switch Note: Light reflections and screen settings may cause slight variations between the product color shown in images and the actual product. Measurement tolerance is 1-3cm.