Description: [ Ultra Mini Size DIY Light Switch Module ] 41X41X22mm ultra mini size body,compatible with 95% of installation box on market.Mini size switch module can be installed in switch installation box or on the lamp easily.(Notice: please turn off electricity during installation). [ APP Remote Control ] -Download smart life /Tuya smart APP on your phone&Tablet to control the light switch anywhere/anytime. [ Hand Free Voice Control ] -Compatible with amazon alexa echo ,google home Yandex Alice ect ,a simply command to voice control the light switch. [ Timer,Schedule&Count Down Function ] -You can create schedule according to your personal requirement ,as well as timing and count down,smart and DIY your daily life to the maximum extend. [ Dual Way Control ] -Can fully upgrade 2 way control switch without change wiring design of house. [ 3 Switch Type for Option ] -Rocker switch flip to change state/state synchronous and self reset switch. [ Status Memory Function ] -switch status when power off and recovery can be set to on,off and keep the same as before power off. [ Interlock Function ] -Enable only one channel on,and other channel off at the same time. [ Group-Control Function ] -Multi switch in different room can set in a group ,realize group control function.