Smart Ceiling Fan Speed Controller with WiFi and App Control Why this product matters Precise speed control from 0 to 100 percent to match different comfort needs and save energy. Remote app control lets you turn the fan on or off, adjust speed, set timers, and create schedules from anywhere with a network connection. Small, compact design fits most mounting boxes and hides discreetly inside the ceiling fixture for a clean installation. Key benefits Accurate control: Smooth, stepless speed adjustment for improved comfort and quieter operation compared with fixedspeed controllers. App and remote access: Control speed and power using your smartphone wherever you are, as long as the phone can access the internet. Voice compatible: Works with common voice assistant systems for hands on off and speed adjustments. Group and multiuser control: One phone can manage multiple switches and multiple phones can control the same switch. Group fans for simultaneous control and shared schedules. No extra hub required: Connect directly to a 2.4 GHz WiFi network. No gateway needed. Reliable reconnection: After a network interruption, the device automatically reconnects to the configured WiFi when available. Features and specifications Speed range: 0 to 100 percent stepless control. Size: 59 x 42 x 20 mm mini module, designed to fit into most mounting boxes. Voltage: 85 to 250 V, 50 to 60 Hz. Power range: 5 to 150 W. WiFi: 2.4 GHz only, IEEE 802.11 b/g/n. Material: PC terminal V0. Controls supported: Reset switch, touch switch, mechanical on/off switch, and speed control switch. Note that touch and mechanical switches only support on and off, not speed adjustment. Networking: One mobile phone can manage multiple switches; one switch can be controlled by multiple phones simultaneously. Devices can be grouped for unified control and linked with other smart scenes. Sharing and permissions: Main account can be shared with household members with full settings preserved. Package contents: 1 switch module, 1 manual. Installation and important notes Neutral wire required for installation. Designed for ceiling fans only. Not compatible with fan lights. Only 2.4 GHz WiFi is supported. No additional gateway or hub required. When setting up the network, make sure the wall on off switch is in the closed position. To set speed directly with the module, use long press of the reset switch. Release the switch and then operate further to change speed direction. Touch and other mechanical switches can only perform on off operations; they cannot change speed. Ensure those switches are open before relying on the module for control. After a network disconnection, the device will automatically reconnect to your WiFi once it becomes available again. If the fan does not respond when adjusting speed, verify wiring, confirm the neutral wire connection, and ensure the installed switch type supports the intended function. Refer to the included manual for troubleshooting steps. Typical use scenarios Living room automation: Set schedules so the ceiling fan runs at lower speed at night and higher speed during hot afternoons, all controlled from your phone or voice assistant. Remote control while away: Turn the fan on to ventilate a space before you arrive home, or check and change settings while traveling. Multiroom and office control: Group several ceiling fans for synchronized on off and speed changes in open office areas or large rooms to maintain consistent airflow. What you get Compact, reliable smart fan speed controller that fits most ceiling mounting boxes. Full app control, group management, multiuser sharing, and voice assistant compatibility without the need for an external gateway. Clear installation and operation manual included for setup and troubleshooting.