Specifications Product type 1 2 3 4 GangVoltage AC100 240V 50 60HzMax load LED 250W 10AOperation Frequency 2 412GHz 2 484GHzOperation temp 10℃ 40℃Operation Range 100mDimension WxDxH 39x39x19 mmIP Rating IP20Features Ultra Mini Size DIY Light Switch Module 39X39X19mm ultra mini size body compatible with 95 of installation box on market APP Remote Control Download smart life Tuya smart APP on your phoneTablet to control the light switch anywhere anytime Hand Free Voice Control Compatible with amazon alexa echo google home ect a simply command to voice control the light switch Timer ScheduleCount 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 Easy to Install Mini size switch module can be installed in switch installation box or on the lamp easily Notice please turn off electricity during installation 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 func