1. Introduction
Thank you for choosing the GLOWRIUM Tall Plant Grow Light. This manual provides essential information for the safe and efficient operation of your new grow light. Please read it thoroughly before installation and use, and retain it for future reference.
This 48W LED grow light features dual heads, full spectrum lighting, adjustable height from 23.5 to 71 inches, a built-in timer, and 6-level dimming, designed to support indoor plants through all growth stages.
2. Safety Information
- Always disconnect the power supply before cleaning or performing any maintenance.
- Do not operate the grow light with a damaged cord or plug. If damaged, contact customer support.
- This product is designed for indoor use only. Do not expose to water or high humidity.
- Ensure the base is stable and placed on a flat surface to prevent tipping. For taller plants, consider placing a heavy pot on the base for added stability.
- Do not touch the lamp heads during or immediately after operation, as they may be hot.
- Keep out of reach of children and pets.
- Do not attempt to disassemble or modify the product. This will void the warranty.
3. What's in the Box
Verify that all components are present before assembly:
- Two lamp heads with inline controller x 1
- Pole A x 3
- Pole B x 1
- Baseplate x 1
- Adapter x 1
- User Manual x 1

Figure 3.1: Included Components
4. Setup Instructions
Follow these steps to assemble your GLOWRIUM Tall Plant Grow Light:
- Assemble the Pole: Screw the pole sections together. The number of sections used will determine the overall height. Pole A sections are 23.5 inches each, and Pole B is 39.3 inches. Combine them to achieve desired height (e.g., 23.5", 39.3", 55.1", 70.9").
- Attach to Baseplate: Securely screw the assembled pole into the heavy-duty iron baseplate.
- Attach Lamp Heads: Connect the dual lamp heads to the top of the pole.
- Position Goosenecks: Adjust the 360° flexible goosenecks to direct light towards your plants.
- Connect Power: Plug the power adapter into the inline controller, then plug the adapter into a standard electrical outlet.

Figure 4.1: Adjustable Height Options

Figure 4.2: Flexible Gooseneck Adjustment
Video 4.1: Unboxing and Setup of GLOWRIUM LED Floor Grow Light G2 Pro. This video demonstrates the assembly process of the grow light, including connecting the pole sections, attaching the base, and positioning the lamp heads.
5. Operating Instructions
The GLOWRIUM grow light is controlled via an inline controller with four buttons:

Figure 5.1: Inline Controller Functions
5.1 ON/OFF Button
- Press the ON/OFF button to turn the lamp on or off.
- Press and hold the ON/OFF button for 5 seconds to reset the settings.
5.2 Spectrum Switch (MODE Button)
Press the MODE button to cycle through the following spectrum modes:
- S (Seedling Mode): Balanced low-intensity red and blue wavelengths for germination and early growth.
- V (Vegetative Mode): Full-spectrum output with a boost in blue light for chlorophyll production, compact growth, and robust stem formation.
- F (Flowering Mode): Red-dominant spectrum to promote phytochrome activation, optimizing flowering, fruit set, and overall productivity.

Figure 5.2: Seedling Mode Spectrum

Figure 5.3: Vegetative Mode Spectrum

Figure 5.4: Flowering Mode Spectrum
5.3 Timer Button
The grow light features an automatic timer function:
- Press the TIMER button to activate the timer and cycle between 3H, 9H, 12H, and 16H cycles.
- The light will automatically turn off after the selected duration and turn on again at the same time the next day.
- Press and hold the TIMER button to cancel the timer function.

Figure 5.5: Timer and Dimming Controls
5.4 Dimming Button
Adjust the brightness of the grow light:
- Press the DIM button to cycle through 6 preset brightness levels: 10%, 20%, 40%, 60%, 80%, and 100%.
- Press and hold the DIM button for stepless dimming, allowing fine-tuning of brightness from 10% to 100%.
6. Maintenance
- Cleaning: Ensure the light is unplugged and cool before cleaning. Wipe the lamp heads and pole with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: If storing the grow light for an extended period, disassemble it and store in its original packaging in a dry, cool place.
- LED Lifespan: The LEDs have an estimated lifespan of 50,000 hours and do not require replacement.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | No power, loose connection, or timer active. | Check power outlet. Ensure all connections are secure. Press ON/OFF button. Check if timer is set. |
| Light flickers or dims unexpectedly. | Loose connection, power fluctuation. | Check power connections. Try a different outlet. |
| Timer function not working. | Timer not set correctly or reset. | Ensure timer is activated by pressing the TIMER button. If issues persist, press and hold ON/OFF for 5 seconds to reset. |
| Light is unstable or tips easily. | Uneven surface, insufficient weight on base. | Place on a flat, stable surface. For tall plants, place a heavy pot on the base for added stability. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | L-GC462016 |
| Wattage | 48 watts |
| Light Source Type | LED (268 individual LEDs) |
| Spectrum | Full Spectrum (Seedling, Vegetative, Flowering modes) |
| Height Adjustment | 23.5" - 71" |
| Dimming Levels | 6 preset levels (10%-100%) & stepless dimming |
| Timer Settings | 3H, 9H, 12H, 16H |
| Gooseneck | 360° Flexible Dual Goosenecks |
| Base Material | Iron (5.29 lbs) |
| Product Dimensions | 10.83"D x 7.87"W x 78.74"H (Max Height) |
| Item Weight | 6.2 pounds |
| Power Source | Corded Electric |
| Voltage | 24 volts DC |
| Indoor/Outdoor Usage | Indoor Only |
9. Warranty and Support
9.1 Warranty Information
This GLOWRIUM product is covered by a 2-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accident, unauthorized modification, or failure to follow the instructions in this manual.
9.2 Customer Support
For technical assistance, warranty claims, or any questions regarding your GLOWRIUM Tall Plant Grow Light, please contact GLOWRIUM customer support through the retailer where the product was purchased or visit the official GLOWRIUM website for contact information.