1.Smart Wi-Fi 4 module comes with mini design for 4 switches to suit UK and EU wall switch boxes; size allows an with no changes to your home decor; turns compatible products into smart ones in seconds; allows operation of switch with no interference; suitable for rocker and reset switch both.2.4- switches supported as the demand meet and new update; can be used as a 1-way or 2-way circuit (2 switches control 1 light); simply connect to 1 of the 2 switches and convert the connected device into a (for 2-way circuit);Multi-control association is featured as associating any button to your WiFi smart switch in Smart Life App for another intelligent control.3.Allows for hands-free voice and wireless remote control; compatible with and Google Home; remotely control your four devices with your smart phone wherever you are, even when you're from home;memory function with on/off/ last status supported in Smart Life Tuya App.4.Take full control of connected appliances with timers, schedules and countdown (1/5/30 mins, 1 hour, etc.) with the app; share control with family and for added .5.Control with your smart phone via Smart Life/Tuya app without a separate hub; a much easier pairing mode for adding the device with WiFi and Bluetooth connected;Specifications:Wireless protocol :Wi-Fi 2.4GHzOperation temp.: -10 Celsius - +40 CelsiusCase temp. Tc: +80 Celsius (Max.)Operation range: 200 mIP rating IP20Voltage: 90-250V AC 50/60HzMax current : 10AColour:WhiteMaterial:ABSSize:52 x 47 x 22.5mmPackage Contents:1 * Smart Wi-Fi 4 moduleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.