1. Product Overview
The SZHLUX LED Grow Light is designed to provide optimal lighting for indoor plants across all growth stages. This 2-foot, 80W (2x40W) full-spectrum light fixture offers a balanced light wave ratio, specifically tailored for plant absorption, including red and blue light components. Its trapezoid shape enhances the luminous area compared to standard T5 and T8 LED plant lights, ensuring over 95% energy absorption by plants.
Key features include:
- Full Spectrum Lighting: Provides light wavelengths essential for seedling, vegetative, and flowering cycles.
- High Efficiency: Consumes 80W with 96 LEDs, offering light output equivalent to 600W traditional grow lights.
- Effective Heat Dissipation: Constructed with 100% aluminum housing and a reflector to increase light efficiency by 17-20% and ensure a longer lifespan for the LED chips.
- Linkable Design: Up to four lights can be connected in series from a single power source.

2. Package Contents
Verify that all components listed below are included in your package. If any items are missing or damaged, please contact customer support.

- LED Grow Light Fixture (x2)
- Daisy Chain (x4)
- Power Cord (x2)
- Cable Tie (x8)
- Expansion Nail Plug (x4)
- Ceiling Expansion Nail (x4)
- Plug Cover (x2)
- Ceiling Clip (x4)
- User Manual (x1)
- Fixed Plug (x8)
- Clips (x4)
- Hook (x4)
- Double-ended Connecting Cord (x1)
- Ceiling Screw (x4)
3. Installation Instructions
Before installation, ensure the power supply is disconnected. The driver of these lights does not support use with a dimmer switch. Only connect a maximum of 4 lights in a series.
3.1 Preparation
- Carefully remove the protective film from the lamp surface.
- Install the clips onto the base of each lamp.
3.2 Mounting Options
Multiple installation methods are available:
- Hanging Installation: Use the provided rope hangers or daisy chains to suspend the lights from a ceiling or grow light stand.
- Surface Mounting: Screw the clips onto a wall or ceiling, then push the light fixture into the clips.
- Cable Tie Mounting: Secure the lights to a grow light stand using cable ties.

3.3 Connecting Multiple Lights (Linkable Design)
You can link up to 4 lights in a series using the included 47-inch connecting cords or small connectors. This allows for a single power source to operate multiple units.
- Ensure the power supply is disconnected before connecting lights.
- Connect the lights using the double-ended connecting cord or small connectors.
- Connect only one end of the series to a power cord. Do not connect power cords to both ends of a linked series, as this can cause a short-circuit and damage the lights.
- Once all connections are secure, connect the power cord to an electrical outlet and turn on the switch.

4. Operating Instructions
The SZHLUX LED Grow Light provides a full spectrum of light to support various plant growth stages. Understanding the light requirements for your specific plants is crucial for optimal results.
4.1 Full Spectrum Light Output
The light incorporates 96 2835 SMD LEDs, providing a balanced spectrum:
- Warm White Light (3600K): 40 LEDs, beneficial for boosting blooms and enhancing flower vibrancy.
- Blue Light (5000K): 36 LEDs, promotes plant germination, sprouting, and stronger stalks and roots.
- Red Light (660nm): 16 red LEDs, increases leaf and crop yield, especially when combined with blue light, accelerating plant growth.
- IR Light (710nm to 800nm): 4 IR LEDs, speeds up phytochrome conversion, contributing to higher yields.

4.2 Recommended Hanging Heights and Duration
Adjust the hanging height and lighting duration based on the plant's growth stage to optimize light intensity (PPFD - Photosynthetic Photon Flux Density).
| Growth Stage | Recommended Hanging Height | Approximate PPFD | Lighting Duration per Day |
|---|---|---|---|
| Seeding Stage | 20 inches (50.8 cm) | 116.4 umol/m²/s | 12-14 hours |
| Growth Stage | 12 inches (30.5 cm) | 165.4 umol/m²/s | 14-16 hours |
| Flowering & Fruiting Stage | 8 inches (20.3 cm) | 183.4 umol/m²/s | 14-18 hours |

Note: These are general recommendations. Specific plant species may have different light requirements. Observe your plants for signs of stress or insufficient light and adjust accordingly.
5. Maintenance
Proper maintenance ensures the longevity and optimal performance of your SZHLUX LED Grow Light.
- Cleaning: Regularly wipe the light fixture and reflector with a soft, dry cloth to remove dust and debris. Ensure the light is unplugged before cleaning. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check the power cords, connecting cords, and hanging hardware for any signs of wear, damage, or loose connections. Replace any damaged components immediately.
- Environment: Ensure the grow light is used in a well-ventilated area to prevent excessive heat buildup, although the aluminum housing is designed for efficient heat dissipation. Avoid exposing the light to water or high humidity, as it is not water-resistant.
6. Troubleshooting
If you encounter issues with your SZHLUX LED Grow Light, refer to the following common problems and solutions:
- Light does not turn on:
- Check if the power cord is securely plugged into both the light fixture and the electrical outlet.
- Ensure the power switch on the cord is in the "ON" position.
- If multiple lights are linked, verify that only one power cord is connected to the entire series. Connecting power to both ends will cause a short circuit.
- Test the outlet with another device to confirm it is receiving power.
- Lights flicker:
- Check all connections, including the power cord and any linking cords, for looseness.
- Ensure the light is not connected to a dimmer switch, as the driver does not support dimming.
- Plants are not growing well:
- Review Section 4.2 for recommended hanging heights and lighting durations for your plant's specific growth stage.
- Ensure adequate ventilation and other environmental factors (temperature, humidity, nutrients) are suitable for your plants.
- Overheating:
- While designed for efficient heat dissipation, ensure the light fixture has sufficient airflow around it.
- Do not cover the light fixture or obstruct its ventilation fins.
If the problem persists after attempting these solutions, please contact SZHLUX customer support.
7. Specifications
Detailed technical specifications for the SZHLUX LED Grow Light (Model SZ-2T70).
| Feature | Detail |
|---|---|
| Brand | SZHLUX |
| Model Name | LED Grow Light |
| Part Number | SZ2FT80W |
| Item Model Number | SZ-2T70 |
| Size | 2ft (23.6 inches / 60 cm) |
| Product Dimensions | 23.6"L x 3.15"W x 2.17"H (60cm x 8cm x 5.5cm) |
| Item Weight | 2 Pounds (per unit) |
| Number of Items | 2 (in pack) |
| Wattage | 40 Watts (each light) / 80 Watts (total for 2-pack) |
| Light Source Type | LED (96 LEDs per light) |
| Light Color | Warm White (Full Spectrum) |
| Color Temperature | 3600 Kelvin |
| Brightness | 5078 Lumen |
| Efficiency | 126.9 lm/W |
| PPF | 92 Umol/S |
| PPFE | 2.30 Umol/J |
| Material | Aluminum |
| Indoor/Outdoor Usage | Indoor |
| Power Source | Corded Electric |
| Installation Type | Hanging |
| Special Feature | Adjustable Height |
| Control Method | Push Button (on cord) |
| Water Resistance Level | Not Water Resistant |
| UPC | 722794226885 |

8. Warranty and Support
SZHLUX provides a 2-Year Limited Warranty for this product. This warranty covers defects in materials and workmanship under normal use.
For technical assistance, warranty claims, or any other inquiries, please contact SZHLUX customer support. Our support team is available 24 hours a day to assist you.
Contact Information:
- Email: [Insert Manufacturer Support Email Here - not provided in JSON]
- Website: SZHLUX Official Store on Amazon
Please retain your proof of purchase for warranty purposes.