Wifi Dimmer Switch Module: APP Remote Control:Control the switch anywhere or anytime via phone APP Voice Control:Simply give a voice to Alexa or Home to control your devices. Timing or countdown or schedule:Smart and DIY your to maximum extend Stepless Dimming:Dim your lamp brigntness from 0percent to 100percent for different scene:sleeping,working,watching movie,party etc Group-Control Function:Multi dimmer switch in different room can be set in a group realize group control function. Family Share Function:Create a smart home together with your family member Support 2 Ways Control:2 switch control 1 light Easy to install:Compatible with 98percent of Installation box Material: plastic colour: Yellow Specification: 1CH Package Contents: 1 x Dimmer Switch Only 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.