[Capabilities Requirement] The smart ceiling fan switch does not compatible with fans having a built-in remote control system. The maximum load is 2A (provide 5 fan speed). Only uses under 2.4GHz WiFi (not 5GHz). Only used as a single-pole ceiling fan wall switch (NOT 3-way). The neutral wire is required.[Hands-free Voice Control] Smart ceiling fans works perfectly with Alexa and Google Home.[Remote Control & Schedule] You can turn on the ceiling fan through APP. Create timer or countdown schedules to set your smart ceiling fan control to automatically turn on and off at specific times.[Power-on State Setting] You can change freely the power-on status via APP:"Power-on State" ON: Automatically turn on the fan after power failure recovery, and the default 3-speed wind speed."Power-on State" OFF: Needs to be restarted manually after power failure recovery.App Control: On /Off / Speed Control/TimerScheduled / Timer / SharesWorks with AlexaWorks with Google HomeNotice:1. The smart fan switch is not compatible with fans with built-in remote control system.2, The maximum load is 2A (provide 5 speed levels).3, Only use wireless network below 2.4GHz (not 5GHz).4. There must be a neutral line.Specification:Model Number: Smart Wif Fan SwitchMechanical Life: 10000Product Name: Smart Rotary Ceiling Fan SwitchMax. Power: 250WSize: EU 86x86x45mmWorking temperature: -10~45Wireless standard: IEEE 802.11 b/g/n,WiFi 2.4GWire type: Live + NeutralApp name: TuyaColor: White / BlackMaterial: PlasticPackage Contents:1*Smart Wifi Fan SwitchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.ll