1. Introduction
This manual provides instructions for the USTELLAR Smart WiFi LED Flood Lights, Model UT88873. These RGB color-changing flood lights are designed for both indoor and outdoor use, offering smart control features including app control, voice control, and various lighting modes. The product is IP66 waterproof, ensuring durability in diverse weather conditions.

Image 1.1: USTELLAR Smart WiFi LED Flood Lights with app control interface.
Key features include:
- App Control: Manage lights via the Smart Life App (Android & iOS).
- Voice Control: Compatible with Amazon Alexa and Google Assistant.
- RGB Color Changing: Access a wide spectrum of colors.
- Dynamic Modes: 8 preset scenes and DIY modes, including music sync.
- Scheduling & Timer: Automate on/off times.
- Group Control: Manage multiple lights simultaneously.
- IP66 Waterproof: Suitable for outdoor use in various weather conditions.
2. Setup
2.1 Package Contents
Verify that all components are present:
- 4 x USTELLAR Smart WiFi LED Flood Lights
- User Manual (this document)
2.2 Physical Installation
The flood lights are designed for easy installation and can be mounted or hung in various locations. Ensure the mounting surface is stable and can support the weight of the light fixture.
- Choose a suitable location for the flood light, considering power access and desired lighting area.
- Securely mount the light using appropriate hardware (not included, depending on surface type).
- Adjust the angle of the flood light to direct illumination as needed.
- Plug the flood light into a standard 120V AC power outlet.
2.3 App Download and WiFi Connection
The USTELLAR Smart WiFi LED Flood Lights operate via the Smart Life App and require a 2.4GHz WiFi network for connection. 5GHz WiFi networks are not supported.
- Download the Smart Life App from the App Store (iOS) or Google Play Store (Android).
- Register or log in to your Smart Life account.
- Ensure your smartphone is connected to a 2.4GHz WiFi network. Temporarily disable 5GHz on your router if you experience connection issues, or ensure your phone prioritizes 2.4GHz.
- Power on the flood light. The light should begin to blink, indicating it is in pairing mode. If not, power cycle the light three times (on-off-on-off-on) to reset it to pairing mode.
- In the Smart Life App, tap the "+" icon to add a device.
- Select "Lighting" > "Light Source (Wi-Fi)" or search for "Flood Light".
- Follow the on-screen instructions in the app to connect the flood light to your WiFi network. This typically involves confirming the light is blinking and entering your WiFi password.
- Once connected, you can rename the device for easier identification.

Image 2.1: USTELLAR Smart RGB Flood Lights illuminating a modern home.
3. Operating Instructions
3.1 App Control
After successful connection, use the Smart Life App to control your flood lights.
- Color Selection: Choose from 16 million colors using the color wheel in the app. Adjust brightness and saturation.
- Scene Modes: Select from 8 preset dynamic scenes (e.g., Soft, Colorful, Dazzling, Gorgeous, Night, Read, Working, Leisure) or create custom DIY scenes.
- Music Mode: Synchronize light effects with music played through your phone's microphone. Adjust speed and brightness.
- Group Control: Group multiple flood lights together to control them simultaneously with a single command.
- Scheduling/Timer: Set specific times for the lights to turn on or off automatically on desired days.

Image 3.1: App interface showing 8 preset dynamic scenes.

Image 3.2: Choosing from 16 million colors via the app.

Image 3.3: Example of group control for multiple lights.
3.2 Voice Control
Integrate your flood lights with Amazon Alexa or Google Assistant for hands-free control.
- Ensure your flood lights are successfully connected to the Smart Life App.
- Open the Amazon Alexa or Google Home app.
- Link your Smart Life account within the Alexa or Google Home app.
- Discover devices. Your flood lights should appear.
- Use voice commands such as:
- "Alexa, turn on the floodlights."
- "Hey Google, set the patio lights to blue."
- "Alexa, change the scene to party mode."

Image 3.4: Smart voice control integration with Alexa and Google Assistant.
3.3 Scheduling and Timer
Automate your lighting to suit your daily routine or special events.
- In the Smart Life App, navigate to the specific flood light or group.
- Select the "Schedule" or "Timer" function.
- Set desired on/off times and repeat days.
- Confirm the schedule. The lights will retain the last setting when they turn on.

Image 3.5: Timer function for automated light control.
4. Maintenance
The USTELLAR Smart WiFi LED Flood Lights are designed for durability with an IP66 waterproof rating, making them resistant to dust and powerful water jets. Regular maintenance is minimal.
- Cleaning: Periodically wipe the light's surface with a soft, damp cloth to remove dirt or debris. Do not use harsh chemicals or abrasive cleaners.
- Inspection: Occasionally check the power cable and connections for any signs of damage. If damage is found, discontinue use and contact support.
- Environmental Protection: While IP66 rated, extreme weather conditions (e.g., prolonged submersion, direct lightning strikes) should be avoided.

Image 4.1: IP66 Waterproof rating for outdoor durability.
5. Troubleshooting
If you encounter issues with your USTELLAR Smart WiFi LED Flood Lights, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Lights not connecting to WiFi. | Incorrect WiFi band (5GHz), weak signal, incorrect password, light not in pairing mode. |
|
| Lights not responding to app commands. | WiFi disconnected, app glitch, light powered off. |
|
| Voice control not working. | Smart Life account not linked, device not discovered, incorrect voice command. |
|
| Lights not turning on/off at scheduled times. | Incorrect schedule settings, WiFi disconnection. |
|
6. Specifications
| Feature | Specification |
|---|---|
| Model Name | UT88873 |
| Brand | USTELLAR |
| Wattage | 20 watts |
| Voltage | 120 Volts (AC) |
| Light Source Type | LED |
| Light Color | RGB Changing |
| Material | Aluminum, Polycarbonate |
| Product Dimensions | 5.5"L x 1.2"W x 4.7"H |
| Item Weight | 4.25 Pounds (for 4 Pack) |
| Indoor/Outdoor Usage | Indoor, Outdoor |
| Water Resistance Level | IP66 Waterproof |
| Connectivity Protocol | Wi-Fi (2.4GHz only) |
| Control Method | App (Smart Life App), Amazon Alexa, Google Assistant |
| Special Features | Dimmable, Energy Efficient, App Control, 8 Scene Modes, Group Control, Schedule/Timer Setting, Music Mode, Color Changing |
| Average Life | 50,000 Hours |
7. Warranty and Support
For warranty information, please refer to the product packaging or the official USTELLAR website. Warranty terms and conditions may vary.
For technical support or further assistance, please contact USTELLAR customer service through their official channels, typically found on their website or product documentation.





