Introduction
Thank you for choosing the MetryGrow 48W Smart LED Full Spectrum Grow Light. This manual provides essential information for the safe and efficient operation of your new grow light. Please read it thoroughly before use and retain it for future reference.
Safety Information
- Always ensure the power supply matches the product's requirements.
- Do not look directly into the LED lights when operating to avoid eye strain.
- Keep the device away from water or any liquids. This product is not waterproof.
- Ensure proper ventilation around the light to prevent overheating.
- Do not attempt to disassemble or modify the product. Contact support for service.
- Keep out of reach of children and pets.
What's in the Box
Verify all components are present before beginning assembly.

Figure 1: Included Components
| Part # | Description | Quantity |
|---|---|---|
| 1 | LED Lighting Panel | 1 |
| 2 | Height Adjusting Lever | 1 |
| 3 | Control Panel | 1 |
| 4 | Folding Stand | 1 |
| 5 | AC/DC Power Adapter | 1 |
| 6 | Setting Base for Counterweight | 1 |
Setup Instructions
1. Assemble the Stand
- Securely fasten the stand base to the bottom of the main pole using the provided screws.
- Connect the remaining stand segments to achieve your desired height (adjustable from 4 to 72 inches).
- Attach the folding stand arm to the top of the main pole, ensuring it is securely tightened.

Figure 2: Stand Assembly and Adjustability
2. Attach the LED Lighting Panel
- Locate the mounting point at the rear of the LED lighting panel.
- Place the panel onto the stainless steel ball of the folding stand arm. Secure it by tightening the knob until the panel is firmly in place.

Figure 3: Panel Connection Points
3. Connect Power and Control Panel
- Connect the control panel cable to the designated port on the back of the LED lighting panel.
- Plug the AC/DC power adapter into the control panel, then plug the adapter into a standard electrical outlet.
Video 1: Product Overview and Setup Guide. This video demonstrates the assembly process, adjustable features, and control options of the MetryGrow Smart LED Grow Light.
Operating Instructions
1. Smart APP Control
The MetryGrow Smart LED Grow Light can be controlled via the dedicated MetryGrow app, offering advanced customization and remote operation.
- Scan the QR code in the manual or search for "MetryGrow" in your app store to download the app.
- Open the app and follow the on-screen instructions to connect your device to the Wi-Fi network. Ensure your Wi-Fi is 2.4GHz compatible.
- Once connected, you can adjust lighting time (0-24 hours), brightness levels (8 levels), and switch between different LED modes (e.g., Fruits/Flowers, Vegetable/Herbs).

Figure 4: MetryGrow App Interface
2. Manual Control Panel
For quick adjustments, use the magnetically attached control panel.

Figure 5: Manual Control Panel
- Power Button: Turns the light ON/OFF.
- Mode Selection: Switch between 'Veg' (vegetable/herb) and 'Flower' modes.
- Timer Settings: Select 12-hour or 16-hour lighting cycles.
- Brightness Adjustment: Choose between 50% and 100% brightness. Further granular control is available via the app.
- Wi-Fi Button: Initiates Wi-Fi connection mode (long press for 3 seconds).
3. Light Modes and Brightness
The grow light features a patented full spectrum LED with 8 adjustable brightness levels and specific light modes to optimize plant growth.

Figure 6: Flexible Timer and Brightness Levels
- Full Spectrum: Provides light across the entire visible spectrum, crucial for all stages of plant growth.
- 8 Brightness Levels: Adjust intensity from 0% to 100% to suit different plant needs and growth phases.
- 270° Folding & 360° Rotation: The light panel can be precisely positioned to ensure optimal light coverage for your plants.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your grow light.
- Cleaning: Gently wipe the LED panel with a soft, dry cloth to remove dust. Do not use liquid cleaners directly on the LEDs.
- Heat Dissipation: The light features advanced aluminum honeycomb heat dissipation technology. Ensure the vents are not obstructed to maintain efficient cooling and silent operation.

Figure 7: Advanced Heat Dissipation System
Troubleshooting
- Light not turning on: Check if the power adapter is securely connected to both the control panel and the electrical outlet. Ensure the main switch on the control panel or app is ON.
- Wi-Fi connection issues: Ensure your router supports 2.4GHz Wi-Fi. If your network combines both 5GHz and 2.4GHz frequencies, consider splitting them into separate SSIDs. Long press the Wi-Fi button on the control panel to re-enter scan mode.
- Inconsistent light schedule: Verify the LED schedule settings in the MetryGrow app. Ensure the device time zone is correctly set in the app settings.
- Overheating: Check that the heat dissipation vents on the back of the LED panel are not blocked. Ensure the light is not operating in an enclosed space without adequate airflow.
Specifications
| Feature | Detail |
|---|---|
| Model Number | MPGL-01 |
| Wattage | 48 watts |
| Light Source Type | LED |
| Light Spectrum | Full Spectrum (Patented) |
| Brightness Levels | 8 adjustable levels |
| Control Method | Smart App (MetryGrow), Magnetic Control Panel |
| Connectivity Technology | Wi-Fi |
| Stand Height Adjustment | 4 to 72 inches |
| Light Panel Adjustability | 270° Folding, 360° Rotation |
| Coverage Area | 2x2 ft |
| Heat Dissipation | Aluminum Honeycomb Technology |
| Certifications | CE, FCC |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 3.31 Pounds |
| Material Type | Alloy Steel |
Warranty
The MetryGrow 48W Smart LED Full Spectrum Grow Light comes with a 1-year manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
Support
For any questions, technical assistance, or warranty claims, please contact our dedicated support team. We are committed to resolving your concerns swiftly and satisfactorily within 10 hours.
Contact Information: Please refer to the contact details provided on our official website or your product packaging.