Two connection methods: the controller is only connected to the N line and the L line, not to the switch. This smart DIY switch can be used with your 2 control switches. In particular, you can still manually control the switch after installation.Voice Control: Fully compatible with Amazon and Google Home/Tmall Genie.Timing function: set the time to turn on the light and set the cooking time.16A current is suitable for most devices in the home.The mini body is smaller and more convenient, easy to install, put it directly in the switch bottom box. So you 't have to climb stairs to install the controller.Type: (A)Smart SwitchInput voltage: 100-240V 50/60HzMaximum load current: 16AWiFi standard: 2.4GHz 802.11 b/gApplication name: Tuya SmartSize: 42 x 42 x 20mmMaterial: PCcolour: whitePackage Contents:1 x Switch ModuleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.