Best Sf4000 Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.
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Spider Farmer

$43 Savings

Spider Farmer SF4000 LED Grow Lights for Indoor Plants in 4x4 Grow Tent | 450W Dimmable Full Spectrum Grow Light, New-Gen High-Efficiency Diodes 2.7 PPE System for Seed Starting, Vegetables & Bloom

Cutting-Edge Upgraded LED Chips for Unrivaled Performance: All-new premium upgraded LEDs with 2.7 µmol/J system PPE and increased diode count, delivering nearly identical performance to our previous version. It features superior light quality and a potent blue spectrum for healthy veg growth and root development, plus a fanless silent design, and delivers consistent full-spectrum performance across all growth stages with greater cost-effectiveness
5-Year Warranty: Our LED Plant Lights are often copied but will never have our quality or commitment, we provide 5 years of after-service at a local maintenance center (US/CA/UK/EU/AU). Make sure you purchase authentic Spider Farmer grow lights, really can give you high-quality grow lights – at a price that is affordable. For any questions, feel free to e-mail us, and we will help you resolve them
Ideal For All Growth Stages: Excellent full spectrum - white, blue, red and IR (3000K, 5000K, 660nm and IR 760nm, IR is dimmer than other red diodes. You can wear glasses to see it). 3000K providing more reddish light and the 5000K providing more blueish. The 660nm red and IR light is especially useful during bloom, where it speeds up flowering time and boost yields. Uniformly across the surface and deep into the roots and bottom of canopy for consistent, highest quality flowers
New Diode Layout & Dimming Design: 2026 New Version SF4000 450W growing lights, the diodes arrangement gathered at the edge makes the PPFD more uniform, absorb light better, produce higher yields. The dimming knob be adjusted the light intensity at liberty, and compatible with GGS controllers. Dimming and scheduled on/off cycling based on plant growth stage. Multi-light connection with unified dimming especially beneficial for large area of indoor growing and commercial planting
Well Made & Solid Construction: No Fan Noise Free. High Efficient, reliable Spider Farmer Brand Driver have great dissipate heat. Aluminum heat sink is thick and sturdy, protective covers for cables; User-Friendly Packaging. Quality components mean the light lasts longer, SF light takes good cares of you with more considerate design, you can easily save money without purchasing lights frequently
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on Amazon.com
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Vivosun

28% Off

VIVOSUN LumaLight 400W LED Grow Light, Full Spectrum Plant Light | Smart Dimmable & High PPFD for Indoor Plants Seedling Vegetables Bloom, Fits 4×4/5×5 Grow Tents

Optimized Full Spectrum: With white, blue, red and far red (3000K, 5000K, 660nm and 730nm) LEDs, this grow light delivers essential light to fuel photosynthesis at every stage—from seedling to harvest; Upgraded with up to 40% more LEDs, it speeds up flowering time and boost yields harvest
High Intensity & Uniform PPFD: Delivers powerful light that drives healthy growth and higher yields; The strategic diode layout ensures a balanced spectrum and intensity across the entire coverage area, so every plant—from center to edge—thrives under the same strong illumination
Control Anywhere with Smart Dimming: Compatible with the Vivosun GrowHub (sold separately) and mobile app to automate lighting schedules and monitor remotely; Adjust light intensity via the 4-level dimming knob from 25% to 100% to match plant needs
Low Heat, Long Lifespan: Advanced thermal management efficiently dissipates heat, protecting components and reducing plant stress; With a Q90 flux maintenance rate of up to 36,000 hours, your plants receive consistent, high-intensity light for years of reliable growth and harvests
IP65 Waterproof & Dustproof: This LED grow light is built for high-temperature and high-humidity environments; Safe to spray water, nutrients, or cleaners without worrying about damage or reduced lifespan
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Spider Farmer

17% Off

Spider Farmer G5000 LED Grow Light, App‑Controlled, Fits 4x4 Grow Tents | Cost‑Effective Bar‑Style Dimmable Grow Lamp, Sunrise‑Sunset Mode, Full‑Spectrum with Osram Hyper‑Red for Indoor Plants

【MAXIMUM EFFICIENCY AND UNIFORM LIGHT】 The Spider Farmer G5000 led grow lights has a unique extended light bar design that provides more uniform and comprehensive canopy coverage, especially at the edges of the cultivation area. With 1680 Pcs high efficiency diodes, the G5000 LED grow light draws 480 watts of power, achieving an impressive PPE of 2.8 umol/J, covering 4x4 feet of of high-yielding full-cycle growth
【ADVANCED FULL SPECTRUM】 The G5000 plant light is a full spectrum LED grow light (660-665nm,3200-4200K,4800-5000K) with different wavelengths of light, perfect for every stage of plant growth, grow from seed to harvest
【DIMMING DAISY CHAIN】 Dimming button allows to adjust the brightness of the light, 10-100% dimming to meet the needs of plant growth. Also daisy chain function supports growers to connect 60 lights for dimming at the same time. Highly recommended for use in grow rooms, home growing (4x4 grow tents), DWC and hydroponics
【5-YEAR COVERAGE FOR PEACE OF MIND】The Spider Farmer G series LED grow light comes with an impressive 5-year coverage, ensuring long-lasting performance and reliability. With U.S.-based service center, you can count on quick and efficient local support whenever needed, giving you complete peace of mind
【GROW SMART WITH THE SPIDER FARMER APP】Take full control of your grow lights anytime, anywhere with the Spider Farmer App. Simply download the app (available on the Apple Store & Google Play) to unlock powerful features like custom light schedules, sunrise and sunset simulation, and remote brightness adjustments. Even while you're away on vacation, you can effortlessly manage your Spider Farmer G5000 grow light to ensure your plants thrive without missing a beat
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SONOFARM SF4000 LED Grow Light, Indoor Grow Lamp for Plants, Veg to Flower Bloom, Dimmable & Daisy Chain, 4x4 5x5 Grow Tent, Full Spectrum LM301B Diodes and Meanwell Driver

Long Lifespan: With over 100,000 hours lifespan, our 400 watt LED grow light will keep your plants blooming and thriving, crop after crop. Ideal for all stages of growth, our commercial LED grow lights cover the full color spectrum: 3000K, 5000K, 660nm, IR 760 nm. Veg footprint: 5 x 5 feet. Flowering footprint: 6 x 6 feet.
Genuine Meanwell Driver: Our driver powers the SonoFarm LED panel with optimal performance. Water-resistant and CE, ETL, FCC, and RoHS certified, the Meanwell driver is built for reliability while staying cool, safe, and quiet.
Customizable Lighting: Each panel on our quantum board grow light has a dimming knob that can turn the LEDs on and off, anywhere from 0-100% in strength. These customizable options make our LED panel lights perfect for a variety of different plants and growing environments.
High Performance at Low Costs: Drawing just 400W, our hydroponics LED lights won't be detrimental to your energy bill, but will produce a healthy 2.7 umol/J. Designed to be highly energy efficient, our grow lights deliver powerful light output, which in turn results in higher yield for your plants.
5-Year Warranty: We are confident in the quality of our SonoFarm LED grow light, and we want you to be, too! Our 5-year warranty ensures you are secure with your purchase, while allowing us to stand behind our product.
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Mars Hydro FC-E4800 480W 4x4 LED Grow Light Full Spectrum Veg Bloom Flower | BEST VALUE: Bridgelux 2835 Diodes, Osram660nm CSSRM6.24, 2.8 μmol/J PPE, 1344 μmol/J PPF, Max Coverage 4x4ft, Removable

UPGRADED SPECS, BEST VALUE: The upgraded FC-E4800 now features an enhanced OSRAM red spectrum to maximize flowering—without the premium price tag. Built with high-efficiency Bridgelux LEDs, it delivers a powerful, uniform output that rivals top-tier lights. It remains the ultimate best-value choice for boosting yields while staying on budget.
HIGH-EFFICIENCY LED GROW LIGHT: The New Version FC-E4800 Lighting wit BridgeLux Diodes, 2.8 µmol/J PPE 1344 µmol/J PPF. smaller footprint for improved crop quality and cost-effectiveness. Ideal for max Coverage (4x4ft) and Core Coverage (3x3ft).
REMOVABLE PARTS : Needs to be assembled before use. Specialized bar structure ensures optimal heat dissipation and stable growth.
ULTRA EFFICIENT · POWER RED: Combining full spectrum technology with high-efficiency design, this light delivers low energy consumption with precision full-coverage. Featuring Osram CSSRM6.24 (4.48μmol/J) to boost deep red output, it not only enhances photosynthetic efficiency but also focuses on driving bud weight and density—the premier choice for maximizing yields.
SMART CONTROL: Pair with iConnectu, Controller, or iHub-Pro (sold separately) for remote monitoring, smart scheduling, and precise dimming via the MARS HYDRO App.
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Vivosun

VIVOSUN LumaLight 500W LED Grow Light, Full Spectrum Indoor Plant Light | Deep Canopy Reach, Smart Dimmable LED Bar Lamp for Vegetables, Herbs, Flowers, 4x4ft Coverage, GrowHub Compatible

Even, Powerful Light for Full Tent Coverage: The scientifically-arranged light-bar matrix delivers uniform light across the entire canopy; With up to 0.89 uniformity, it reduces hot spots, giving every plant consistent light from edge to edge, ideal for large, high-yield grow setups
Focused Light, Deeper Reaching: The Micro-Lens Optic System uses curved, wave-shaped lenses to redirect and concentrate light, boosting PPFD by up to 20%; Light is then spread evenly and pushed deeper into the canopy, helping every plant photosynthesize efficiently and develop stronger
Optimized Full Spectrum: With white, blue, red, and far-red LEDs (3000K, 5000K, 660nm, and 730nm), this grow tent light provides full-spectrum illumination to support photosynthesis from early growth to harvest; It speeds up flowering time and increases yields
Sealed Protection & Longer Lifespan: Fully sealed light bars with an IP65 waterproof protect LEDs from dust, mist, and cleaning exposure, making maintenance easy; Integrated heatsink fins improve airflow and reduce heat buildup, helping extend lifespan up to 36,000 hours (Q90)
Control Anywhere with Smart Dimming: Compatible with the Vivosun GrowHub (sold separately) and mobile app to automate lighting schedules and monitor remotely; Adjust light intensity via the 4-level dimming knob from 25% to 100% to match plant needs
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on Amazon.com
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Vivosun

19% Off

VIVOSUN LumaLight 750W LED Grow Light, Full Spectrum Indoor Plant Light | Deep Canopy Reach, Smart Dimmable LED Bar Lamp for Vegetables, Herbs, Flowers, 5x5ft Coverage, GrowHub Compatible

Even, Powerful Light for Full Tent Coverage: The scientifically-arranged light-bar matrix delivers uniform light across the entire canopy; With up to 0.89 uniformity, it reduces hot spots, giving every plant consistent light from edge to edge, ideal for large, high-yield grow setups
Focused Light, Deeper Reaching: The Micro-Lens Optic System uses curved, wave-shaped lenses to redirect and concentrate light, boosting PPFD by up to 20%; Light is then spread evenly and pushed deeper into the canopy, helping every plant photosynthesize efficiently and develop stronger
Optimized Full Spectrum: With white, blue, red, and far-red LEDs (3000K, 5000K, 660nm, and 730nm), this grow tent light provides full-spectrum illumination to support photosynthesis from early growth to harvest; It speeds up flowering time and increases yields
Sealed Protection & Longer Lifespan: Fully sealed light bars with an IP65 waterproof protect LEDs from dust, mist, and cleaning exposure, making maintenance easy; Integrated heatsink fins improve airflow and reduce heat buildup, helping extend lifespan up to 36,000 hours (Q90)
Control Anywhere with Smart Dimming: Compatible with the Vivosun GrowHub (sold separately) and mobile app to automate lighting schedules and monitor remotely; Adjust light intensity via the 4-level dimming knob from 25% to 100% to match plant needs
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on Amazon.com
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Spider Farmer

Spider Farmer New Mater Series 4x4 Grow Tent 48"x48"x80" for Indoor Plants | Enlarged Zippered Observation Window, Enforced 22mm Pole, 2000D Canvas, Multi-Device Connectivity for SF4000 SE5000 G5000

Smarter Growing, Scalable Setup: Strategic multi-port layout supports separate intake, exhaust, and circulation setups, which is perfect for scalable and smart growing. Connect fans, filters, CO₂, or automation gear without modifying your growing tent. Designed for growers who plan to upgrade from hobby to professional grower
Smart Cable Management: Dedicated cable-pass through ports let you connect controllers and adapters to internal devices easily, and the Velcro-sealed openings keep the growing tent fully closed while cords pass through. Built-in Velcro straps along the poles keep power cords neatly secured, no more tangled wires or accidental unplugging
Heavy-Duty Frame & Fabric: Reinforced poles from standard 16mm to 22mm thickened steel poles, which resists bending under heavy grow lights, inline fans and other growing accessories. Outer 2000D oxford,500G lightproof mid-layer and 100% diamond reflective inner film block light leaks while maximizing PAR reflection
Upgraded Viewing Experience & Clean Floor: Upgraded with a bigger, crystal-clear zippered viewing window up to 17.72"x35.04" for easy monitoring. The upgraded 1680D and PEVA floor tray resists spills and stains, and the double-layer thick fabric tool pouch holds heavy meters and scissors without tearing
Tool-Free Assembly for Any Indoor Space: Snap the frame together in minutes, no extra tools needed. Fits apartments, basements, living rooms, garages, or dedicated grow rooms. Multiple sizes available to match your space and plant count
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AC Infinity IONBOARD S44, LED Grow Light Board 4x4 with Dimming Control | Full-Spectrum Lighting with Samsung LM301H Diodes, Deeper Penetration for Veg Bloom Indoor Plants in Grow Tents Greenhouses

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Our #1 Pick Today
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Spider Farmer

Spider Farmer SF4000 LED Grow Lights for Indoor Plants in 4x4 Grow Tent | 450W Dimmable Full Spectrum Grow Light, New-Gen High-Efficiency Diodes 2.7 PPE System for Seed Starting, Vegetables & Bloom

Cutting-Edge Upgraded LED Chips for Unrivaled Performance: All-new premium upgraded LEDs with 2.7 µmol/J system PPE and increased diode count, delivering nearly identical performance to our previous version. It features superior light quality and a potent blue spectrum for healthy veg growth and root development, plus a fanless silent design, and delivers consistent full-spectrum performance across all growth stages with greater cost-effectiveness
5-Year Warranty: Our LED Plant Lights are often copied but will never have our quality or commitment, we provide 5 years of after-service at a local maintenance center (US/CA/UK/EU/AU). Make sure you purchase authentic Spider Farmer grow lights, really can give you high-quality grow lights – at a price that is affordable. For any questions, feel free to e-mail us, and we will help you resolve them
Ideal For All Growth Stages: Excellent full spectrum - white, blue, red and IR (3000K, 5000K, 660nm and IR 760nm, IR is dimmer than other red diodes. You can wear glasses to see it). 3000K providing more reddish light and the 5000K providing more blueish. The 660nm red and IR light is especially useful during bloom, where it speeds up flowering time and boost yields. Uniformly across the surface and deep into the roots and bottom of canopy for consistent, highest quality flowers
New Diode Layout & Dimming Design: 2026 New Version SF4000 450W growing lights, the diodes arrangement gathered at the edge makes the PPFD more uniform, absorb light better, produce higher yields. The dimming knob be adjusted the light intensity at liberty, and compatible with GGS controllers. Dimming and scheduled on/off cycling based on plant growth stage. Multi-light connection with unified dimming especially beneficial for large area of indoor growing and commercial planting
Well Made & Solid Construction: No Fan Noise Free. High Efficient, reliable Spider Farmer Brand Driver have great dissipate heat. Aluminum heat sink is thick and sturdy, protective covers for cables; User-Friendly Packaging. Quality components mean the light lasts longer, SF light takes good cares of you with more considerate design, you can easily save money without purchasing lights frequently
Details & specs
Check Price
on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

10 Sf4000 deals are available from: Amazon, starting from $8.87.

The biggest discount we found is 28% on VIVOSUN LumaLight 400W LED Grow Light, Full Spectrum Plant Light | Smart Dimmable & High PPFD for Indoor Plants Seedling Vegetables Bloom, Fits 4×4/5×5 Grow Tents (VSL-LL400) at Amazon.

The lowest price we found is $8.87 while the highest is $404.99. Prices for the best Sf4000 deals average at $263.29.