1. Introduction
Thank you for choosing the Milfra KS811 Tuya Smart WiFi Wall Light Switch. This smart switch allows you to control your lights remotely via a mobile application, voice commands, or the physical button. It supports both installations with and without a neutral wire, offering flexibility for various home electrical setups. This manual provides detailed instructions for installation, setup, and operation to ensure a seamless smart home experience.
2. Key Features
- Flexible Wiring: Neutral wire optional, compatible with 110-240V systems.
- Voice Control: Seamless integration with Amazon Alexa and Google Home for hands-free operation.
- Mobile APP Remote Control: Control your lights from anywhere using the free Tuya or Smart Life app.
- 2-Way Control: Create multi-way control setups by associating multiple switches within the app.
- Timing & Scheduling: Set custom schedules and timers for automatic light control.
- Real-time Feedback: Monitor the ON/OFF status of your lights directly from the app.
- Enhanced Safety: Features overload protection and is constructed from high-quality flame-retardant PC material.
- Physical Button: Large, tactile physical button for easy manual control.
- LED Indicator: Noctilucent LED indicator displays switch status (Red for ON, Blue for OFF).
- Family Sharing: Easily share device control with family members through the app.
3. Specifications
| Attribute | Detail |
|---|---|
| Type | Smart Wall Light Switch |
| Model | KS-811 |
| Power Supply Mode | Neutral Wire Optional |
| Rated Current | 10A (Max) |
| Rated Voltage | AC100-240V~, 50/60Hz |
| Load Power (LED Lamp) | Max 150W |
| Load Power (INC Lamp) | Max 600W |
| Wireless Frequency | 2.4GHz |
| Wireless Standard | IEEE802.11b/g/n |
| Product Size | 116*75*35mm |
| Communication Method | Wi-Fi |
| State of Assembly | Almost Ready |
4. Safety Information
- Electrical Safety: Always turn off power at the circuit breaker before installing, removing, or servicing the switch. Improper installation can lead to electric shock or fire.
- Professional Installation: If you are unsure about electrical wiring, consult a qualified electrician.
- Indoor Use Only: This device is designed for indoor use in dry locations.
- Overload Protection: The switch includes built-in overload protection (short circuit, over temperature, overvoltage, overcurrent) to prevent damage to the device and connected appliances.
- Flame Retardant Material: Constructed with high-quality PC fireproof material for enhanced safety.
5. Installation Guide
Important: Ensure power is OFF at the circuit breaker before beginning installation.
5.1 Wiring Diagrams
The Milfra KS811 switch supports two wiring methods: with a neutral wire (Neutral + Live Wire Version) and without a neutral wire (Single Wire Version). Identify your home's wiring setup before proceeding.
5.2 Step-by-Step Installation
- Turn Off Power: Locate your circuit breaker and turn off the power to the light switch you are replacing. Verify power is off using a voltage tester.
- Remove Old Switch: Carefully remove the existing wall plate and unscrew the old switch from the wall box. Disconnect the wires.
- Identify Wires: Identify the Live (Line), Load, Neutral (if present), and Ground wires in your wall box. Refer to the wiring diagram above.
- Connect Wires: Connect the wires from your wall box to the corresponding terminals on the Milfra KS811 switch.
- L (Live/Line): Connect the Live wire from your electrical supply.
- N (Neutral): If your setup has a neutral wire, connect it here.
- LOAD 1/2/3: Connect the Load wires going to your light fixtures.
- Ground: Connect the Ground wire.
- Mount the Switch: Gently push the wired switch into the wall box and secure it with screws. Attach the new wall plate.
- Restore Power: Turn the power back on at the circuit breaker. The LED indicator on the switch should light up.
6. App Setup and Pairing
6.1 Download the App
Download the 'Tuya Smart' or 'Smart Life' app from the Apple App Store or Google Play Store. Register for a new account or log in if you already have one.
6.2 Pairing the Switch
- Ensure your mobile device is connected to a 2.4GHz Wi-Fi network.
- Open the Tuya Smart or Smart Life app.
- Tap '+' or 'Add Device' to begin the pairing process.
- Select 'Lighting' > 'Switch (Wi-Fi)' or 'Wall Switch (Wi-Fi)'.
- Follow the on-screen instructions to put the switch into pairing mode. This usually involves pressing and holding the physical button for 5-10 seconds until the LED indicator blinks rapidly.
- Confirm the indicator is blinking rapidly in the app and enter your Wi-Fi password.
- The app will search for and connect to the device. Once connected, you can rename the switch and assign it to a room.
7. Operation
7.1 Manual Control
Press the large physical button on the switch to manually turn the connected lights ON or OFF.
7.2 App Control
Once paired, use the Tuya Smart or Smart Life app to turn lights ON/OFF, set schedules, and configure advanced features.
7.3 Voice Control
Integrate your switch with Amazon Alexa or Google Home for voice commands. Ensure your smart assistant is linked to your Tuya/Smart Life account.
- For Alexa: "Alexa, turn on the living room light."
- For Google Home: "Hey Google, turn off the kitchen light."
7.4 LED Indicator Status
The LED indicator on the switch provides visual feedback:
- Red: Light is ON.
- Blue: Light is OFF.
- Rapid Blinking: Pairing mode.
8. Advanced Features
8.1 Scheduling and Timers
Use the app to set custom schedules for your lights to turn ON or OFF automatically at specific times. This is ideal for energy saving and home security.
8.2 Scene Patterns
Create personalized scene patterns in the app to control multiple lights or devices with a single tap. For example, a 'Home Mode' scene could turn on specific lights when you arrive, or a 'Sleep Pattern' could dim lights before bedtime.
8.3 Family Sharing
Share control of your smart switch with family members. In the app, navigate to device settings and select 'Share Device' to grant access to others.
9. Maintenance
- Cleaning: To clean the switch, gently wipe the surface with a soft, dry cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the finish or internal components.
- Power Off for Deep Cleaning: For more thorough cleaning, always turn off the power at the circuit breaker before cleaning the switch.
- Avoid Moisture: Keep the switch dry and away from excessive moisture.
10. Troubleshooting
- Switch Not Responding:
- Check if the power is on at the circuit breaker.
- Ensure the switch is properly wired according to the installation guide.
- Verify your Wi-Fi network is active and the switch is within range.
- If using the app, check the device status and your internet connection. - Cannot Pair with App:
- Make sure your phone is connected to a 2.4GHz Wi-Fi network (5GHz is not supported).
- Ensure the switch is in pairing mode (LED blinking rapidly). If not, press and hold the physical button for 5-10 seconds.
- Check your Wi-Fi password for accuracy.
- Try restarting your Wi-Fi router and the switch. - Voice Control Not Working:
- Confirm that your smart assistant (Alexa/Google Home) is correctly linked to your Tuya/Smart Life account.
- Check the device name in the app; ensure it's easy for the voice assistant to recognize.
- Verify your smart assistant device is online and connected to the internet. - Lights Flicker or Switch Turns Off Unexpectedly:
- This could indicate an overload. Check the wattage of your connected lights against the switch's maximum load power (LED: Max 150W, INC: Max 600W).
- Ensure all connections are secure and there are no loose wires.
11. User Tips
- For optimal performance, ensure your Wi-Fi router is centrally located and provides strong signal coverage to all smart devices.
- When setting up schedules, consider your daily routines to maximize energy savings and convenience.
- Utilize the 'Scene' feature in the app to create custom lighting environments for different activities or moods.
- Regularly check the Tuya Smart or Smart Life app for firmware updates to ensure your switch has the latest features and security enhancements.
12. Warranty and Support
For any technical assistance, warranty claims, or product inquiries, please contact the seller or manufacturer directly. Refer to your purchase documentation for specific warranty terms and contact information.
