0 percent -100 percent rangeYou can adjust the speed according to different scene needs Mini Body Designed 59x42x20mm mini body, which is working with most of amounting boxes, switches.Support reset switch, touch switch, mechanical switch, speed control switch. Mobile App control Control the speed,switch, timing and other functions of the device through the mobile phone. Voice controlSupport voice assistants such as Alexa, Google Home, etc., to realize functions such as switches and adjust speed Remote control It can realize the remote control of the fan by mobile phone, no matter where you are in the earth, as long as your mobile phone can connect to the network, you can control it Networking technologyOne mobile phone can control multiple switches, and one switch can be controlled by multiple mobile phones at the same time Group controlThe fans can be grouped to achieve unified control (simultaneous switching, timing, etc.) The Internet of Everything Through settings, it can be linked with other intelligent scenes to make life smarter Sharing and security The main account can be shared with other members of the family, and the functions and settings are completely retained and copied security: The neutral wire is required No Gateway requiredOnly need to connect to WiFi(2.4G only), you can remotely control the speed and switch of the bulb Support reset switch, touch switch, mechanical switch, speed control switch. After the network is disconnected, once the WIFI is activated again, the device connected to the module will automatically connect to your WIFI network Notes: 1. This product only supports ceiling fans, not fan lights 2. When distributing the network, please operate with the on-off switch closed 3. Long press the reset switch to directly adjust the speed, when adjusting faster or slower, please release the switch and then operate 4. Touch switches and other mechanical switches can only operate on and off, and cannot support speed adjustment. You must first ensure that the switch is open before the on-off device can work Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.