Spider 4000W Commercial Grow Light Full Spectrum 6Bars w/LM281Bled Indoor FC4000

ABOUT CTLite LED GROW LIGHT

Founded in 2012, CTLite is a high-tech manufacturer specialized in professional LED grow lights and aquarium coral lights, integrating independent R&D, production and global cross-border sales.
We focus on delivering cost-effective, high-efficiency horticulture lighting for home indoor growers, hydroponic hobbyists and commercial greenhouse farmers. All our lights adopt original LM281B/LM301B diodes with custom full-spectrum formulas for seeding, veg and bloom stages, reaching up to 2.95 μmol/J photon efficacy, which helps boost crop yield while cutting power consumption.
Our star foldable bar grow light series (FD-3000, FD-4000) features split foldable design, full aluminum heat dissipation, IP65 waterproof and daisy-chain dimmable function, covering grow tents from 3x3FT to 5×5FT greenhouses. Compact FD series panel lights are perfect for beginner home growers with budget-friendly price.
All CTLite products are certified with ETL ,UL, CE, RoHS, backed by 3–5 years global warranty and 50,000-hour long lifespan. We have local warehouses in AU ,US & Europe to support fast shipping and local after-sales service, serving over 30 overseas distributors and thousands of individual growers across North America, Australia and Europe.
Sticking to energy-saving, uniform lighting and durable quality, CTLite aims to make professional grow lighting accessible to every planting lover worldwide.

 
CTLite FD-4000 Foldable LED Grow Light Full Spectrum Dimmable Plant Growing Lamp
Indoor Veg Bloom Grow Tent Greenhouse

CTLite's 2026 FD Foldable Series LED Grow Light offers a high-output, full-spectrum lighting solution for indoor vertical farming and grow rooms, providing exceptional efficiency while consuming less power and producing less heat than traditional lights.

Equipped with high-quality LM281B LEDs and a premium UL Listed Waterproof  driver, this grow light is designed to support plants from vegetative growth to flowering, ensuring healthy, robust yields.

CTLite LEDs are trusted by growers worldwide for their ability to deliver high indoor yields. With advanced LM281B chips and a 660nm red light spectrum, this light offers performance similar to the much higher-priced Fluence SPYDRx/Gavita , delivering powerful light intensity for all plant stages.

Unlike many other LED grow lights, CTLite units come with both a heatsink and No Fan No Noise Design, ensuring efficient cooling for longer operating times, while maintaining optimal growing conditions,but price only half of them.

 
🔥 CTLite FD-4000 |  Foldable & Dimmable Full Spectrum LED Grow Light
Exclusively Customized For  Grow Light Buyers |
Direct Drop-In Replacement For 1500W HPS/MH Lights
For 4x4ft / 5x4ft Standard Grow Tent | Hobby Grower & Commercial Grower Friendly
 

FD-4000 Foldable LED Grow Light

Specification:

Model: CTLite FD LED grow light 
Shell material: aluminum  
Power: 350W+/5%
HPS equivalent: 1000 watts
Voltage: 120-277V AC, 347-480V AC, 50/60 Hz
LEDs: HighTech LM281B 1350PCS
LED 6 bar(number): Total in 1350pcs :180pcs 660nm Red lights+396pcs
5000k White Leds +720pcs 3000k white lights +54pcs 450nm Blue lights 
Spectrum:Full spectrum, 3000K,5000K,660nm,450nm for seed to flower growth
Driver:External dimmable
Mounting Height:≥ 6” Above Canopy
Dimming: Knob dimmer,
Dimension:29*23*5"(730* 580*50mm)
Input voltage: 100 ~ 240V AC
Wavelength: full spectrum 380nm ~ 780nm
Frequency: 50Hz / 60Hz
LED brand: High Efficiency LM281B Chips
Driver: UL Certified driver
Service life: 50,000 hours
Light Color: 3500K
Coverage area:
Flowering footprint: 4ft x 4ft
Veg footprint: 4ft x 5ft 
 

Package includes:    

- 1 x LED Grow Light
- 1 x 1.8M Power Cable
- 1 x 3M Long RJ11 Signal Cable
- 4x Adjustable Hanging Kits
-1xUser Manual
 

 

Why Choose CTLite FD-4000 Foldable LED Grow Light ?

Because 350W is the power you actually need — enough to fill a 4x4t/5x4ft tent with dense,

usable light, but not so much that you're managing heat or paying for wasted watts.

Whether you're growing herbs, leafy greens, tomatoes, peppers, or high-value crops, FD-4000 delivers

the spectrum and intensity your plants need — without overheating your tent or breaking your budget.

 

SHIPPING & RETURNS
Fast dispatch — tracking provided within 24 hours
30-day returns accepted — we stand behind our products
3-year thermal management warranty — built to last
Questions? Message us — we're real growers, not robots
CTLite — We make it grow.

 

Transform Your Grow Space with the Revolutionary CTLite FD-4000

Stop compromising! The CTLite FD-4000 Foldable & Dimmable LED Grow Light delivers professional-grade performance with unmatched convenience and savings. Engineered for serious growers in the US, Australia, and worldwide, this full-spectrum powerhouse combines high efficiency (2.95 μmol/J), silent operation, and a space-saving foldable design – all backed by a rock-solid 3-Year Warranty.

  •  

KEY FEATURES

FeatureWhat It Means For You
for  4x4ft /5x4ft CoverageFull tent coverage. No weak corners. Even PPFD distribution.
2.95 µmol/J EfficacyMore light per watt. Lower electricity cost. 20-30% yield increase from 250W.
Foldable DesignPacks flat for shipping — lower cost, easier storage.
Built-in DriverOpen box, hang, plug in — 3 minutes. No assembly required.
Zero NoiseNo fan. Dead silent. Perfect for bedroom or office.
Master/Slave Daisy ChainUp to 50 lights, one master control. No extra controller needed.
Full Spectrum3000K+5000k + 660nm Red+ 450nm Blue — all stages, all plants.
ETL / CE / RoHS CertifiedSafe. Trusted. Commercial-grade.
3-Year WarrantyThermal management warranty. Built to last.

 

FULL SPECTRUM — ALL PLANTS, ALL STAGES

The FD-4000 delivers a research-backed spectrum that mimics natural sunlight:

  • 3000K+5000K White — Balanced spectrum for strong vegetative growth
  • 660nm Deep Red +450nm Blue  — Drives flowering, fruiting, and resin production

One light supports your plants from seedling to harvest — no spectrum swapping, no second light purchase.

SILENT PASSIVE COOLING

No fan. No noise. No moving parts to break.

The thick aluminum heat sink pulls heat away from the LEDs through natural convection — silently, 24/7.

Place it in your bedroom, living room, or office without a single decibel of disturbance.

MASTER/SLAVE DAISY CHAIN

Start with one light. Scale to 50 Lights one Time.

The RJ signal port lets you connect multiple lights in a single chain. Set one as master, the rest as slaves. Adjust brightness on the master — every light follows in perfect sync.

No separate controller required. No complex wiring. No re-learning when you add more lights.

FOLDABLE & PRE-ASSEMBLED

Open the box. Unfold. Hang. Plug in.

That's it. No assembly required. No external driver to mount. No wiring. No tools. The foldable design saves on shipping and stores flat when not in use.

 

 

THE FEATURES FD-4000 LED GROW LIGHT
 

🌿 2.95 µmol/J | 1493 µmol/s PPFHigh Efficiency & Power Saving
CTLITE FD-4000 commercial grow light features 2.95 μmol/J high photon efficacy. True 350W power built with 1350 premium LM281B LED diodes, 1493 μmol/s PPF, covers 4X4ft/5x4ft grow area. Delivers 50% higher average PPFD, boosts 60% crop yield than ordinary LED grow lights, cuts 50% electricity cost vs traditional HID grow lights.
🌿 Natural Full Sunlike Spectrum
Custom balanced full spectrum: 3000K warm white + 5000K cool white + 450nm blue + 660nm deep red. Optimized for full plant growth cycle. Blue light controls internode growth for thick sturdy stems; red light boosts photosynthesis, blooming and fruiting, improves fruit taste & crop quality, ideal for seedling, veg and bloom stages.
🌿 Upgrade 30% More Passive Cooling System
Equipped with 4 hollow passive cooling bars, zero fan design for quiet operation. Fast heat dissipation reduces light decay, extends lamp lifespan, no extra cooling cost for indoor grow tent, greenhouse and hydroponic growing.
🌿 Adjustable Dimming & Daisy Chain Supported
Built-in precise manual dimmer for customized brightness for each growth stage. Max daisy chain connect up to 50 units, one master light centralized control. IP65 waterproof rating, perfect for high-humidity indoor grow rooms and commercial planting.
🌿Foldable 6-Bar AlphaPar Lighting
6 removable grow bars with independent driver box. Flexible layout to adjust PPFD evenly on plant canopy. Easy disassemble for shipping, storage and targeted lighting control for different crops.
🌿120° Beam Angle & Stable Frame Design
Upgrade reinforced frame expands lighting coverage uniformly. Each LED bead fitted with120° Beam Angle , concentrates light output, improves effective canopy PPFD for better light utilization.
🌿 180° Foldable & Long Durability
180° foldable structure for quick assembly & height adjustment. 50,000hrs long lifespan, ≥0.95 high power factor, low power loss, heavy-duty build for home hobby growers and commercial farmers.
🌿 ETL, UL, FCC,CE, RoHS Certified & 3 Year Warranty
All CTLite products are certified with UL, CE, RoHS, Adhere to ISO13501 quality system, backed by 3 years global warranty.We have local warehouses in US & AU & Europe to support fast shipping and local after-sales service, serving over 30 overseas distributors and thousands of individual growers across North America, Australia and Europe.
🌿 Discreet Private Package  & Worry Free 
Fully anonymous unmarked plain packaging, no product-related logos or marks. Protect your planting privacy completely, no unnecessary attention. Thickened shockproof package ensures safe delivery without damage.
 

WHY CHOOSE CTLite GROW LIGHT BAR?

💯High Efficiency Optimized for PAR, Extremely Sufficient Lights Spectrum, Super Light Penetration

💯Plants grow faster and flower bigger: Enhanced spectral output covering full PAR (400-730nm)
promotes photosynthesis for Growth & Bloomming,

💯High Efficiency Powerful LEDs, Low Energy Consumption
 
💯High performance aluminum alloy light bar, Fast heat dissipation, Uniform illumination ,
life span up to 50000 hours.

💯Built-in aluminum alloy no stroboscopic power supply driver.

💯Better heat dissipation than plastic power driver

💯Healther than stroboscopics which could cause brain tumor.

💯 The product passed EMI verification and high-low temperature test. It has full voltage,
high stability, high precision, high transformation
 
 💯High efficiency, short circuit protection function. The use of aluminous shell for better
heat dispersion and longer life time.

💯14 years experienced R&D team,rich experience in OEM/ODM.

💯Truly Full Spectrum~Suitable for all Grow Stages from Seeds to Harvest~1w>2.5grams(Max)

💯Powerful Cooling fan system inside, Cool and Quieter

💯Revolutionary Heat Aluminium PCB, Run 80% cooler than high intensity discharge (HID) lights

💯1pcs Strong Hanging Kits are available for Easy Installation

💯All LEDs with a Zener to ensure One LED Goes Out the Rest Continue to Operate
 
 
 
  

CTLite FD-4000 350W— Foldable & Dimmable LED Grow Light
🇺🇸 110V · 🇦🇺 240V
POWER

350W

COVERAGE

4×4ft/5x4ft

EFFICACY

2.95 µmol/J

NOISE

0 dB

WARRANTY

3 Years

❓ 12 FAQs — US & AU Growers Ask Most

🌱 General Product Understanding

Q1: What makes FD-4000 different from standard 350W LED panels?

Foldable split-design — reduces packaging volume by ~40%, saving shipping and storage. Built-in driver — no messy wiring. RJ daisy-chain + Master/Slave — one light controls up to 10 linked lights simultaneously.

Q2: Is 350W enough for a 4×4ft grow tent?

Yes. High PPFD with 2.95 µmol/J efficacy — covers 5×4ft veg and 4×4ft flower. For max flowering yield, use 4×4ft; for leafy greens/herbs, 5×4ft works great.

Q3: Does “Full Spectrum” work for all plant stages?

Yes. Custom diode mix (3000K/5000K white + 660nm deep red + IR + blue) mimics sunlight — supports germination, veg, flowering, fruiting. No need to swap lights.

Q4: Is this light noisy for home living areas?

Completely silent. Fanless passive cooling — thickened aluminum heatsink. No humming, no vibration. Safe for bedrooms, apartments, quiet greenhouses.

⚙️ Technical & Installation

Q5: How difficult is installation?

Extremely easy. Pre-assembled — just unfold, hang, plug in, turn dimmer. Built-in driver eliminates external boxes. 5-minute setup.

Q6: How does Master/Slave daisy-chain work?

Connect lights via RJ signal cables. Set one as “Master”, others as “Slave”. Adjusting Master controls all slaves simultaneously. Perfect for multi-tier racks.

Q7: Can I use in humid greenhouse or grow tent?

Yes. IP65 waterproof/dust-tight — resists humidity, splashes, moisture. Aluminum body resists corrosion. Avoid direct high-pressure washing.

Q8: What is actual power draw and efficacy?

350W actual draw (not “equivalent”). 2.95 µmol/J efficacy. At 16hrs/day (US avg $0.25/kWh): ~$25-30/month. High efficiency offsets electricity cost.

🌎 US & 🇦🇺 AU Localized Concerns

Q9: Is FD-4000 certified for US electrical standards?

Yes. US 110V plug, ETL Listed, CE, RoHS, ISO13501 certified. Built-in driver meets safety protocols — reduces fire risk. 3-Year Warranty.

Q10: Does this work on Australian 240V power?

Yes. AU variant includes 240V AU plug (SAA-compliant). No transformer needed. Same foldable, IP65, daisy-chain features for Aussie greenhouses and balconies.

Q11: How much heat in a small tent?

Passive aluminum cooling. Runs warmer than 350W bars, much cooler than HPS/MH. In a 4×4ft tent with exhaust, temp rise ~5-8°F — reduces HVAC load.

Q12: Can I mount vertically for vertical hydroponics?

Yes. Foldable arms allow flexible angles. Mount horizontally over canopy or vertically on racks for strawberry towers/leafy green vertical farms. Daisy-chain supports multi-level lighting.

🏆 CTLite FD-4000 vs. Mainstream Brands:

2.95 µmol/J (higher than others Light 2.2-2.5umol/j) · Full foldable · Built-in driver · RJ master/slave · IP65 waterproof · ETL+CE+RoHS+ISO · 3-year warranty (vs. 2-year).

⚡ Voltage Note — US & AU Buyers: US — 110V plug & play. AU — 240V AU plug (SAA-compliant). No transformer needed for AU variant.

🔍 SEO Keywords: 350W grow light · foldable LED grow light · dimmable grow light · daisy chain · master slave · ETL certified · IP65 waterproof · full spectrum · 4x4 grow tent · passive cooling · quiet grow light · 3 year warranty · 2.95 µmol/J · high PPFD · energy saving · USA · Australia · vertical hydroponics · greenhouse

CTLite — Professional grow lights for US & AU home gardeners.

Questions? Message us — we're real growers, not robots. 🌱

 
 

 

CTLite FD-4000 — Foldable & Dimmable LED Grow Light
🇺🇸 110V · 🇦🇺 240V

🌱 6 Growing Scenarios — US & AU Optimized

🏙️ 1. Urban Apartment — Space-Saving Silent Indoor Garden

Live in a city apartment? No spare room for a grow setup? FD-4000 is your answer — foldable 350W LED grow light collapses flat and unfolds in 10 seconds to cover 4×4ft. Fanless zero-noise passive cooling — no humming fans. Full spectrum with 660nm red keeps herbs, greens, and flowers thriving. Pre-assembled with built-in driver — just unfold, hang, and grow. Perfect for US apartments and AU limited spaces.

SEO: 350W grow light · foldable · space-saving · 5x4/4x4 tent · urban apartment · full spectrum · quiet · fanless · herbs · veggies · zero noise

🏢 2. Commercial Farm — Cost-Effective Scalable Greenhouse

Scaling your commercial operation? Master-slave daisy chain lets one light manage up to 10 units — saving time and energy. IP65 waterproof withstands greenhouse humidity. 2.95 µmol/J efficacy cuts electricity bills. ETL+CE+RoHS+ISO13501 certified — trusted by farms. 3-year warranty backs your investment. Foldable design reduces bulk shipping costs.

SEO: commercial grow light · master-slave · IP65 waterproof · greenhouse · 2.95 µmol/J · energy efficiency · ETL certified · farms · scalable · bulk

🌿 3. Cannabis Cultivator — Discreet High-Yield Flowering

Discrete growing made easy. Folds away when not in use. Passive cooling = zero noise and no fan failure. Full spectrum with 660nm deep red drives dense buds. RJ daisy chain connects up to 10 lights. 3-year warranty backed by ISO9001 quality. Recommended 4x4ft for max flowering results.

SEO: discreet grow light · cannabis · passive cooling · zero noise · full spectrum · 660nm deep red · daisy chain · 3-year warranty · ISO13501 · high yield

📦 4. Vertical Farm — Stackable Lightweight Canopy Lighting

Maximize every square foot. Foldable lightweight aluminum makes vertical rack mounting easy. RJ daisy chain syncs each level's intensity. High PPFD ensures even canopy penetration. 2.95 µmol/J and IP65 waterproof for humid environments. Trusted by vertical farms for density and reliability. 3-year warranty.

SEO: vertical farm · stackable · lightweight aluminum · PPFD · even canopy · daisy chain · 2.95 µmol/J · IP65 · reliability · multi-level

🌱 5. Beginner Hobbyist — Plug & Grow Easy Setup

No setup stress. Pre-assembled with built-in driver — unfold, hang, plug in. Dimmable for seedlings, veg, or flowering. Full spectrum supports all stages. ETL+CE+RoHS certified for home safety. 3-year support — grow with confidence. No tools, no wiring, no guesswork. Perfect for first-time growers.

SEO: beginner grow light · pre-assembled · built-in driver · dimmable · full spectrum · ETL certified · 3-year warranty · plug and grow · no tools · first-time grower

🌧️ 6. Outdoor Greenhouse — Rainproof Year-Round Growing

Extend your season — rain or shine. IP65 waterproof withstands AU humidity and US storms. Full spectrum mimics natural sunlight — keeps plants growing through winter. Daisy chain multiple lights. 2.95 µmol/J keeps electricity costs low. 3-year warranty proves durability. Foldable design makes seasonal install simple.

SEO: outdoor grow light · greenhouse supplement · IP65 waterproof · rainproof · full spectrum · winter grow · year-round · daisy chain · 2.95 µmol/J · 3-year warranty

⚡ Voltage Note: US — 110V plug & play. AU — 240V AU plug (SAA-compliant). No transformer needed.

🔍 SEO Keywords: 350W grow light · foldable LED grow light · dimmable grow light · daisy chain grow light · master slave control · ETL certified · IP65 waterproof · full spectrum · 4x4 grow tent · passive cooling · quiet grow light · 3 year warranty · 2.95 µmol/J · high PPFD · energy saving · USA · Australia · vertical farm · greenhouse · cannabis · beginner · commercial

CTLite — Professional grow lights for US & AU home gardeners.

Questions? Message us — we're real growers, not robots. 🌱

 
 
 
 
 
WHY CHOOSE US

We can do whatever we can to ensure that interests of consumers

  • Repair Center 3 repair center
  • SupplyDirectly from factory
  • ExpressFast discreet delivery
  • PriceNo physical stores no middleman
  • Service100% satisfied customer service
  • WarehouseUS/UK/EU warehouses
 
RECOMMENDED FOR:

Commercial grows
Greenhouses
Home grows (rooms and tents)
Soil, hydroponic, aeroponic, or aquaponic systems
Indoor farming or gardening
30days in return and 3 years warranty so that you can buy with confidence.
 
Application:

* Horticulture LED Grow Lighting
* Artificial LED Grow Lighting
* Greenhouse LED Grow Lighting
* Hydroponics LED Grow Lighting
* Vertical Farming LED Grow Lighting
 
Attention:

Suggested Continuous Working Time: 10 - 16 hours per day
Recommended Height to Plant: 0.5-1.5m according to different growing stages
Do not use the lights in dripping water or anywhere where they will get wet,
 water and electricity can be a dangerous mixture.
The working environment for the light is -20~40Degrees,45%RH~90%RH.
To protect the light, Pls cut off the power when there is a lightning strike.
Do Not touch or move when the light working.
 
 

 
CTLite FD-4000 — Full Spectrum LED Grow Light
🌱 5×5ft Coverage

🌿  Choose CTLite Grow Anything, Anywhere, Anytime.

From kitchen herbs to greenhouse tomatoes, from succulent collections to flowering orchids — the CTLite FD-4000 Full Spectrum LED Grow Light supports every plant, every stage, every season.

🌱 By Growth Stage — Recommended Light Settings

Growth StageLight SettingHeight Above CanopyBest Plants
Seedling / Germination40-50% Brightness24-30 inchesLettuce, herbs, microgreens, flower seeds
Vegetative Growth60-80% Brightness18-24 inchesLeafy greens, basil, mint, cannabis veg
Flowering / Fruiting80-100% Brightness12-18 inchesTomatoes, peppers, cannabis bloom, orchids

🌿 By Plant Category — What You Can Grow

🥗 Leafy Greens & Herbs

Spectrum: Balanced 3000K+5000K + 660nm + 460nm · Daily: 12-14 hours · Best for: Lettuce, spinach, kale, basil, mint, rosemary, cilantro, microgreens

🍅 Fruiting Vegetables

Spectrum:3000K+5000K + 660nm + 460nm  · Daily: 14-16 hours · Best for: Tomatoes, peppers, cucumbers, strawberries, eggplant, chili peppers, bush beans,cannabis 

🌸 Flowering Plants

Spectrum:3000K+5000K + 660nm + 460nm  · Daily: 12-16 hours · Best for: Orchids, roses, petunias, geraniums, marigolds, zinnias, snapdragons

🌵 Succulents & Cacti

Spectrum: 3000K+5000K + 660nm + 460nm · Daily: 10-14 hours · Best for: Echeveria, aloe vera, haworthia, jade plant, string of pearls, lithops

🌿 Houseplants & Foliage

Spectrum:3000K+5000K + 660nm + 460nm  · Daily: 8-12 hours · Best for: Monstera, pothos, fiddle leaf fig, philodendron, snake plant, spider plant, calathea

📐 Quick Reference — Height & Light Schedule

Plant TypeHeight AboveLight HoursDimming LevelSpectrum Focus
Seedlings24-30"10-12 hrs30-40%3000K+5000K
Leafy Greens18-24"12-14 hrs60-70%3000K+5000K
Herbs18-24"12-14 hrs60-80%3000K+5000K+660nm
Fruiting Veg12-18"14-16 hrs80-100%660nm+3000K+5000K
Flowering12-18"14-16 hrs80-100%660nm
Succulents18-24"12-14 hrs50-70%460nm+3000K+5000K
Houseplants24-30"10-12 hrs40-60%3000K+5000K
Orchids24-30"10-12 hrs40-50%3000K+5000K+460nm

🌱 One Light. Infinite Possibilities.

4×4ft Coverage · 2.95 µmol/J · 1493 PPFD · IP65 Waterproof · 3-Year Warranty

From kitchen herbs to greenhouse tomatoes, from succulent collections to flowering orchids — the FD-4000 supports every plant, every stage, every season.

⚡ Voltage: US — 120V plug & play. AU — 240V version available. Compatible 100-277V AC.

CTLite — Professional grow lights for US & AU gardeners.

Questions? Message us — we're real growers, not robots. 🌱

 
 
 
CTLite FD-4000 Foldable & Dimmable Full Spectrum LED Grow Light The 350W light that delivers 1500W Traditional MH/HPS Light results.
 ⚡ 350W | 2.95 µmol/J | 1493 µmol/s PPF 1350 LEDs. Covers 4x4ft/5x4ft. 60% higher yield than traditional LEDs. 🌞 Full Spectrum Sunlight Simulation 450nm blue + 3000K white + 5000K white + 660nm red. Prevents stretching, drives flowering. One light, all stages. 
❄️ Passive Cooling — Zero Noise 6-bar fanless design. Runs cool. No moving parts to break. 🔗 Daisy Chain Up to 50 Lights One master controls all. No extra controller needed. 📦 Foldable 6-Bar Design Foldable
foldable bars. Saves shipping cost. Easy to store. 💧 IP65 Waterproof Safe for greenhouses and high-humidity tents. ⏳ 50,000-Hour Lifespan Built to last. Foldable frame for easy setup.



 
 
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