Remote Control: The dimmer switch supports you to control your household electric appliances via your phone whenever and wherever you are after downloading the APP Smart Life as long as there is a network. Suit for someone who can not move around very well and needs easy access to turn on or off the devices.(Smart light switch Size:2.87x4.65x1.88inch. Note:Our switches can be fixed into a standard 2.36 inch mounting wall box,the depth of the mounting box should be at least 1.18 inch) Timing Fuction: Schedule the intelligent light dimmer switch to automatically power electronics on and off based on specific time you set. Eliminate wasted standby power, prevent overcharging and overheating, save your electricity bills, and extend product life Voice Control: Compatible with Amazon Alexa and Google Assistant. Control your home electrical appliances with the smart switch dimmer by simply giving voice commands to Amazon Alexa and Google Assistant Group Control & Share Devices Function: You can set multiple smart light switches dimmer as a group and control them in smart life APP. And also share to your family, they can control it at the same time Note: Neutral wire is required. The white alexa dimmer light switch only works with 2.4GHz WiFi networks when connected to the app, but can be controlled by mobile data (2/3/4/5 G). The connecting luminaire must be a dimmable luminaire Smart Dimmer Switch, 2.4GHz WiFi Dimmer Light Switch Works with Alexa and Google Home, Neutral Wire Required Light Switch Dimmer, Single Pole Touch Dimmer Switch for Lamp, Remote Control, Black