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Description
Spider Farmer SF-4000 LED Grow Light – 450W Samsung LM301H EVO for 4x4 to 5x5 Grow Tents450W Full Spectrum Indoor Grow Light with Dimmable Control Take full control of your growing environment with this powerful LED grow light. Built for serious growers, it delivers intense, uniform coverage through Samsung LM301H EVO diodes, optimized diode layout, and fanless cooling all while maximizing yields across veg and bloom cycles. Whether youre optimizing a grow tent, climate room, or commercial indoor setup this model gives you pro level
450W Full-Spectrum Indoor Grow Light with Dimmable Control
Take full control of your growing environment with this powerful LED grow light. Built for serious growers, it delivers intense, uniform coverage through Samsung LM301H EVO diodes, optimized diode layout, and fanless cooling — all while maximizing yields across veg and bloom cycles. Whether you’re optimizing a grow tent, climate room, or commercial indoor setup — this model gives you pro-level control without the hassle.
✅ Quick-Glance Benefits
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💡
Samsung EVO Diodes
LM301H EVO chips for unbeatable efficiency and output
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True Full Spectrum
Supports all growth stages with 3000K, 5000K, 660nm & IR
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Silent Fanless Cooling
Passive heatsink design ensures quiet operation
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🎛️
Daisy-Chain Dimmable
Connect multiple lights and adjust brightness easily
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Fast, Free U.S. Shipping
Always free, always secure — ships from U.S. warehouses
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What’s Included
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1x SF-4000 450W LED Grow Light
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2x Adjustable Rope Hangers
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2x Stainless Steel Hanger Hooks
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1x Power Cord (2m)
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1x User Manual
Use It For
✔️ Full-cycle plant growth
✔️ 4x4 or 5x5 grow tents
✔️ Climate-controlled grow rooms
✔️ High-yield commercial setups
🔍 Standout Features
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Next-Gen LED Tech
Samsung LM301H EVO diodes deliver higher PPE and richer blue spectrum.
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Veg to Bloom Ready
Supports all phases of growth with 3000K, 5000K, 660nm, and 760nm IR light.
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Even Light Distribution
Optimized diode layout eliminates hotspots for uniform PPFD across canopy.
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Daisy-Chain Dimming
Control multiple fixtures from one master dimmer for commercial scalability.
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Ready to upgrade your grow setup?
Order the Spider Farmer SF-4000 today and take full control of your growing environment — with smarter automation and reliable results.
Spider Farmer SF-4000 LED Grow Light Specifications
| Spider Farmer SF4000 LED Grow Light Specification | |
|---|---|
| Product Identification | |
| Brand | Spider Farmer |
| Product Model | SF4000 |
| Product Series | SF Series |
| LED | SAMSUNG LM301H EVO |
| Product Dimensions | |
| Light Size | 64.8 x 53.6 x 5.0 cm / 25.51 × 21.10 × 1.97 Inch |
| Core Coverage | 4x4 ft. |
| Max Coverage | 5x5 ft. |
| Net Weight | 6.38 kg |
| Gross Weight | 8.57 kg |
| Grow Tent Compatible | 4'x4' |
| Recommended Fan Size | 6-Inch |
| Product Technical Specifications | |
| PPF | 1141 μmol/S@AC120V 1119 μmol/S@AC240V 1108 μmol/S@AC277V |
| PPE | 2.7 µmol/J (Highest efficiency 3.14 μmol/j single diode) |
| Spectrum | 660-665nm, 730-740nm, 2800-3000k, 4800-5000k |
| Operating Temperature | -20-35℃(-4-95℉) |
| Input Voltage | AC100-277V |
| Lighting Control Protocols | 0-10V |
| Frequency | 50-60HZ |
| Power Draw | 450W ±5% @AC120-277V |
| Product Guide | |
| Users Manual | |
| Lifespan | 55,000 H |
| Warranty | 5 Years |
| Product Package | |
| Package Included | 1x SF4000 LED Grow Light (with dimmer box) |
| 1x Power Cord | |
| 4x YOYO Hanger Hook | |
| 1x Daisy Chain (RJ11) | |
| 1 x User Manual for Installation | |
Spider Farmer SF-4000 LED Grow Light User Manual
Spider Farmer SF-4000 LED Grow Light Warranty
Manufacturer Warranty: 5 Years
Covers defects in materials and workmanship
Support handled directly through Spider Farmer or via our team
Specifications
| Spider Farmer SF4000 LED Grow Light Specification | |
|---|---|
| Product Identification | |
| Brand | Spider Farmer |
| Product Model | SF4000 |
| Product Series | SF Series |
| LED | SAMSUNG LM301H EVO |
| Product Dimensions | |
| Light Size | 64.8 x 53.6 x 5.0 cm / 25.51 × 21.10 × 1.97 Inch |
| Core Coverage | 4x4 ft. |
| Max Coverage | 5x5 ft. |
| Net Weight | 6.38 kg |
| Gross Weight | 8.57 kg |
| Grow Tent Compatible | 4'x4' |
| Recommended Fan Size | 6-Inch |
| Product Technical Specifications | |
| PPF | 1141 μmol/S@AC120V 1119 μmol/S@AC240V 1108 μmol/S@AC277V |
| PPE | 2.7 µmol/J (Highest efficiency 3.14 μmol/j single diode) |
| Spectrum | 660-665nm, 730-740nm, 2800-3000k, 4800-5000k |
| Operating Temperature | -20-35℃(-4-95℉) |
| Input Voltage | AC100-277V |
| Lighting Control Protocols | 0-10V |
| Frequency | 50-60HZ |
| Power Draw | 450W ±5% @AC120-277V |
| Product Guide | |
| Users Manual | |
| Lifespan | 55,000 H |
| Warranty | 5 Years |
| Product Package | |
| Package Included | 1x SF4000 LED Grow Light (with dimmer box) |
| 1x Power Cord | |
| 4x YOYO Hanger Hook | |
| 1x Daisy Chain (RJ11) | |
| 1 x User Manual for Installation | |
User Manual
Spider Farmer SF-4000 LED Grow Light
Videos
FAQ
Q: What is the weight of the SF4000? Can I use it outdoors on a shaded patio for tomatoes, peppers, and cucumbers?
A: The light weighs 8.77 kg. It can be used outdoors in shaded areas, but take precautions on rainy days due to electrical risks.
Q: Does the SF4000 have a veg and bloom switch?
A: No, it does not have a dedicated veg/bloom switch. However, it features a dimmer knob (0%–100%) and can be adjusted in height for each growth phase.
Q: Will the SF4000 work well in a 4x4x8 grow tent with good PAR and PPFD? Do I need red and blue lights too?
A: Yes, the SF4000 is designed for 4x4 tents. It has PPF of 1141 μmol/s and PPE of 2.7 μmol/J, with full-spectrum light including red and blue—no need to add extra lights.
Q: Can I use this in a 3'x3' tent?
A: Technically yes, but a 120x120cm (approx. 4x4) tent is more ideal for the SF4000’s size and output.
Q: Will this fit in a 4x2 tent?
A: No, it's too large. For 4x2 tents, we recommend the SF2000 EVO LED Grow Light.
Q: What tent size is best for two SF4000 lights?
A: A 4'x8' grow tent is perfect for using two SF4000 lights.
Q: Can I use the SF4000 in a 2x4 grow tent?
A: It won't fit properly due to its dimensions (25.51" x 21.1" x 2.32"). We recommend a 4x4 tent instead.
Q: Is there a chart for recommended hanging heights and dimmer settings for different growth stages?
A: Yes, Spider Farmer provides a usage chart with height and dimmer settings for seedling, veg, and flowering stages.
Q: Can I get the SF4000 with a Meanwell driver?
A: No. Spider Farmer uses a proprietary driver designed for better safety and longer life.
Q: What are the dimensions of the SF4000?
A: 25.51'' (L) x 21.1'' (W) x 2.32'' (H).
Q: Does power consumption decrease when dimmed to 50%?
A: Yes, dimming the light also reduces power draw.
Q: Can this be set to a timer?
A: Yes, with a compatible timer controller, you can schedule light cycles.
Q: Is this light compatible with 220–240V power?
A: Yes. It supports 100–277V input, making it suitable for international use.
Q: What light is best for two plants in a 2x4 tent?
A: The SF2000 LED Grow Light is ideal for that size and plant count.
Warranty
5-Year Manufacturer Warranty covering LED board, power supply, and dimmer. U.S. support team available.
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