86 In-wall concealed structure, easy installation mode, no need to modify the wall, any match. Self-contained knob design, adjust the light brightness and colour temperature by rotating the knob. Smart Home Connectivity, Profiles, Device Automation, Remote App Control. Compatible with some Graffiti Eco devices. Customise linked scenes to quickly switch between scene mode and light mode.Function Introduction: 1. Button 1 Open/Close Knob. 2. Button 2 Brightness Colour Temperature Switching Key (Backlight white light flashes three times when switching). 3. Button 3, L1 Firewire Control Switch/Scene Button. 4. Button 4, L2 Firewire Control Switch/Scene Button. 5. Knob to adjust light brightness and colour temperature by turning clockwise or anti-clockwise. (Note: This device only supports controlling sub-devices under the same gateway)Functional interface and description: 1.Switch connection 'AC.L' fire wire input 'AC.N' zero wire input. 2. L1 L2 firewire output, respectively connected to the corresponding load firewire (single 500W or less)Installation instructions: To proper use, this product must be installed or removed by a professional electrician. The main switch of the power supply must be cut off before installing or dismantling this product to prevent . This product needs to be away from fire and water sources during installation and use. This product should not be used in wet environments (Like the bathroom).Instructions for the operation and use of the product1. Open 'Doodle Intelligence APP', enter the , select the upper right corner of the"",Continue to select the upper right corner of the"".Manually add the wired ZigBee gateway or scan the code to bind the intelligent central control gateway, the APP interface display 'Multi-function central control' or 'wired gateway' after the gateway is successfully bound as shown below:2. Composite knob dimmer switch, set to 'network mode' and wait for the gateway to automatically search and network, (power on and open the button a knob lights up, long the button for 5 seconds, the indicator white light flashes, the device enters mode )3. After -device is added successfully, you can customise the switch name, such as 'living room dimmer switch', etc., which is displayed in the APP interface. After entering the interface of 'Composite Dimmer Switch', the knob control is the light adjustment control, when you first enter, click on the group to add spotlights to save the spotlight group can be controlled.4. Knob adjustment: colour temperature adjustment Brightness adjustment is as follows5. Select the scene switch, the default is the relay L1 L2 switch when it is not bound to a scene, and then the scene touch switch when it is set to a sceneColor: blackMaterial: plasticPackage Contents:1 * Dimming TuYa Intelligent switchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.