First,You need have smart devices of Wulian,such as smart PIR Motion Detector,smart light sensor,smart bulb,smart switch... Second,You need download wulian app and sign up for an account,bound your smart devices to your account. Last,add the wulian app of Google Home and sign in your account,and then You can control these devices you have bound by Google Home.You can say'Ok google,turn on the switch(your device name)' .