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Description
grow light for 4x4 tent Spider Farmer SF4000 450W Dimmable Full Spectrum LED Grow LightSpider Farmer SF4000 450W Full Spectrum Dimmable LED Grow Light High Efficiency 4x4 Canopy Coverage The Spider Farmer SF4000 is a 450W full spectrum LED grow light designed for high efficiency indoor cultivation in 4x4 or 5x5 foot areas. By utilizing an upgraded array of Bridgelux diodes, this fixture delivers a photosynthetic photon flux (PPF) of 1171 mol S while maintaining a fanless, silent thermal profile. It is a technical solution for
Spider Farmer SF4000 450W Full-Spectrum Dimmable LED Grow Light | High-Efficiency 4x4 Canopy Coverage
The Spider Farmer SF4000 is a 450W full-spectrum LED grow light designed for high-efficiency indoor cultivation in 4x4 or 5x5 foot areas. By utilizing an upgraded array of Bridgelux diodes, this fixture delivers a photosynthetic photon flux (PPF) of 1171 μmol/S while maintaining a fanless, silent thermal profile. It is a technical solution for intermediate growers seeking to maximize crop yield and canopy penetration without the noise or energy overhead of traditional HID systems.
Features
High-performance Bridgelux LEDs provide a full-spectrum output including 3000K, 5000K, 660nm red, and 760nm IR. This combination supports all growth stages from germination through flowering.
The thick aluminum heat sink manages thermal loads without internal fans. This design eliminates mechanical noise and prevents dust buildup inside the fixture.
A dedicated MIN-MAX knob allows for granular intensity adjustments. You can match the light output to the specific requirements of your crop's current growth phase.
Integrated CH1 and CH2 ports enable unified dimming for large-scale operations. A single master light can control the intensity of multiple connected units simultaneously.
Compare the SF Series Line
In Detail
The SF4000 utilizes a high-density diode layout to ensure uniform light distribution across a 4x4 foot flowering canopy. By avoiding the central hot spots common in lower-tier fixtures, it promotes consistent growth rates from the center to the edges of the tent. The 450W driver is engineered for high-voltage efficiency, reducing the heat footprint while maximizing photon output for deep canopy penetration.
- 1171 μmol/S total PPF output
- 2.7 µmol/J photosynthetic photon efficacy
- 0dB silent operation via fanless aluminum heat sink
- 5x5 foot maximum coverage area
- 5-year manufacturer warranty protection
Light Footprint (PPFD, μmol/m²/s)
| Hang height | Edge | Center | Edge |
|---|---|---|---|
| Test Environment | 3 | 4 | 3 |
| 12" | 1184 | 1821 | 1184 |
| 18" | 891 | 1371 | 891 |
| 22" | 740 | 1139 | 740 |
Light Spectrum
Technical Specifications
In the Box
- 1x SF4000 LED Grow Light (with dimmer box)
- 1x Power Cord
- 4x YOYO Hanger Hook
- 1 x User Manual for Installation
Warranty
The SF4000 is covered by a 5-year manufacturer warranty. This coverage includes the official Spider Farmer warranty period for the original purchaser, ensuring long-term reliability for your indoor harvest. Trimleaf is an authorized Spider Farmer retailer; this unit ships with the full manufacturer warranty, valid for the original purchaser.
Owner's Manual
Frequently Asked Questions
Yes, the fixture is completely silent because it uses a passive aluminum heat sink rather than active cooling fans. This eliminates the mechanical noise and vibration often associated with high-wattage grow lights.
The SF4000 supports 0-10V dimming protocols via its daisy-chain ports. While it is compatible with many standard controllers, the GGS controller and specific sensors are not included and must be sourced separately.
The unit draws 450W with a variance of plus or minus 5 percent depending on your input voltage. This high efficiency helps keep electricity costs manageable compared to 600W or 1000W HID alternatives.
The SF4000 provides a maximum coverage area of 5x5 feet for vegetative growth. For high-intensity flowering, we recommend a 4x4 foot core coverage area to ensure optimal canopy penetration.
You can use the integrated dimming knob to lower the intensity to the minimum setting. This allows you to provide gentle light for young plants without needing to raise the fixture to the top of your tent.
The Bridgelux diodes are integrated into the board for maximum thermal efficiency and are not designed for individual replacement. However, the unit is backed by a 5-year warranty to protect against manufacturing defects.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy