

ABOUT CTLite LED GROW LIGHT

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.


Package includes:

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.
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.
| Feature | What It Means For You |
| for 4x4ft /5x4ft Coverage | Full tent coverage. No weak corners. Even PPFD distribution. |
| 2.95 µmol/J Efficacy | More light per watt. Lower electricity cost. 20-30% yield increase from 250W. |
| Foldable Design | Packs flat for shipping — lower cost, easier storage. |
| Built-in Driver | Open box, hang, plug in — 3 minutes. No assembly required. |
| Zero Noise | No fan. Dead silent. Perfect for bedroom or office. |
| Master/Slave Daisy Chain | Up to 50 lights, one master control. No extra controller needed. |
| Full Spectrum | 3000K+5000k + 660nm Red+ 450nm Blue — all stages, all plants. |
| ETL / CE / RoHS Certified | Safe. Trusted. Commercial-grade. |
| 3-Year Warranty | Thermal management warranty. Built to last. |


The FD-4000 delivers a research-backed spectrum that mimics natural sunlight:
One light supports your plants from seedling to harvest — no spectrum swapping, no second light purchase.
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.
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.
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

WHY CHOOSE CTLite GROW LIGHT BAR?


350W
4×4ft/5x4ft
2.95 µmol/J
0 dB
3 Years
❓ 12 FAQs — US & AU Growers Ask Most
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.
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.
Yes. Custom diode mix (3000K/5000K white + 660nm deep red + IR + blue) mimics sunlight — supports germination, veg, flowering, fruiting. No need to swap lights.
Completely silent. Fanless passive cooling — thickened aluminum heatsink. No humming, no vibration. Safe for bedrooms, apartments, quiet greenhouses.
Extremely easy. Pre-assembled — just unfold, hang, plug in, turn dimmer. Built-in driver eliminates external boxes. 5-minute setup.
Connect lights via RJ signal cables. Set one as “Master”, others as “Slave”. Adjusting Master controls all slaves simultaneously. Perfect for multi-tier racks.
Yes. IP65 waterproof/dust-tight — resists humidity, splashes, moisture. Aluminum body resists corrosion. Avoid direct high-pressure washing.
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.
Yes. US 110V plug, ETL Listed, CE, RoHS, ISO13501 certified. Built-in driver meets safety protocols — reduces fire risk. 3-Year Warranty.
Yes. AU variant includes 240V AU plug (SAA-compliant). No transformer needed. Same foldable, IP65, daisy-chain features for Aussie greenhouses and balconies.
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.
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. 🌱


🌱 6 Growing Scenarios — US & AU Optimized
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
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
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
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
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
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. 🌱


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





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.
| Growth Stage | Light Setting | Height Above Canopy | Best Plants |
|---|---|---|---|
| Seedling / Germination | 40-50% Brightness | 24-30 inches | Lettuce, herbs, microgreens, flower seeds |
| Vegetative Growth | 60-80% Brightness | 18-24 inches | Leafy greens, basil, mint, cannabis veg |
| Flowering / Fruiting | 80-100% Brightness | 12-18 inches | Tomatoes, peppers, cannabis bloom, orchids |
Spectrum: Balanced 3000K+5000K + 660nm + 460nm · Daily: 12-14 hours · Best for: Lettuce, spinach, kale, basil, mint, rosemary, cilantro, microgreens
Spectrum:3000K+5000K + 660nm + 460nm · Daily: 14-16 hours · Best for: Tomatoes, peppers, cucumbers, strawberries, eggplant, chili peppers, bush beans,cannabis
Spectrum:3000K+5000K + 660nm + 460nm · Daily: 12-16 hours · Best for: Orchids, roses, petunias, geraniums, marigolds, zinnias, snapdragons
Spectrum: 3000K+5000K + 660nm + 460nm · Daily: 10-14 hours · Best for: Echeveria, aloe vera, haworthia, jade plant, string of pearls, lithops
Spectrum:3000K+5000K + 660nm + 460nm · Daily: 8-12 hours · Best for: Monstera, pothos, fiddle leaf fig, philodendron, snake plant, spider plant, calathea
| Plant Type | Height Above | Light Hours | Dimming Level | Spectrum Focus |
|---|---|---|---|---|
| Seedlings | 24-30" | 10-12 hrs | 30-40% | 3000K+5000K |
| Leafy Greens | 18-24" | 12-14 hrs | 60-70% | 3000K+5000K |
| Herbs | 18-24" | 12-14 hrs | 60-80% | 3000K+5000K+660nm |
| Fruiting Veg | 12-18" | 14-16 hrs | 80-100% | 660nm+3000K+5000K |
| Flowering | 12-18" | 14-16 hrs | 80-100% | 660nm |
| Succulents | 18-24" | 12-14 hrs | 50-70% | 460nm+3000K+5000K |
| Houseplants | 24-30" | 10-12 hrs | 40-60% | 3000K+5000K |
| Orchids | 24-30" | 10-12 hrs | 40-50% | 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.








CTLite has been developed by growers over Ten years of careful experimentation and testing. We mainly produce the led grow light and Hydroponics accessories in Agricultural Greenhouses help indoor and outdoor plants growing. Scientifically engineered to deliver the highest level of PAR output and balanced Coverage in the Commercial LED grow market.
CTLite LED Grow Lights are built with high quality LM281B/LM301B diodes and cobs Chips. The lights encompass a continuous range of wavelength from blue and green to red, creating a Full spectrum light blend matching the natural sunlight.
CTLite customized our light spectrum to optimize plant growth and increase yields while consuming less energy and reducing operating costs compared with traditional horticulture technologies.
Higher Light Intensity, Better Coverage, More advanced features ( dimmer and wifi control
US,EU,AU,DE Local warehouses for fast shipment.95% of the goods are in 4-8 days Fast Delivery

CTLite are committed to designing, developing, and manufacturing high quality led grow lighting solutions, for both
home growing and commercial applications where reliability and precision are a key factor.
Each product has undergone 24 hours of quality testing and integrating sphere spectroscopic testing instrument to
ensure the quality and PPFD value.
We have professional market sales and after-sales service center, to give you the most convenient and comfortable
shopping experience.lf you have any question, please feel free to contact us. We will reply you within 24 hours.

CERTIFICATIONS:
CE FCC and RoHS – Certifies that a product has met US/AU/EU consumer safety, health or environmental requirements
ETL UL and ISO90001 Listed – The ETL UL and ISO90001 Mark is proof of product compliance with North American Safety Standards, also it compliance with AU/EU Safety Standards

US,EU,AU,DE Local warehouses for fast Discreet shipment.
95% of the goods are in 4-8 days Fast Delivery















If your tracking number shows delivered on the shipping company’s website but you don’t have it, please do the following:
• Check the area around your home for the package and ask anyone it may have been left with.
• If the package is not found please call the shipping company’s directly to report a missing package. so you can get the logistics information fastest.
• Pls email us about it at the same time.
CTLite can not be held responsible for packages stolen from the delivery address
so please be sure to ship to a secure location! If the items are lost, we need at least 30 days to investigate.
so after we provide the tracking number, hope you can follow the dynamics of the logistics of the items,
continue to view our mail about the notification, so you will receive the items successfully.

CTLite believes in making great planting lights for our customers. We follow strict development guidelines and quality standards and we fully stand behind our products. CTLite Official Store values transparency and building good relationships with our valued customers. As a result of this, we employ no questions asked warranty policy for all our customers. We offer a 3-year extended warranty on every grow light we sell. If you ever do have any issue with your light we will resolve it quickly with our unbeatable customer service. Buy with confidence, buy CTLite.
30 days free returning after delivery, in the precondition of non-artificial damage.
If the reason for return isn’t quality-related, the customer must pay the return shipping costs.
6 months ALL FREE warranty:
Free components, repairing and replacement service with 2-way free shipping can be provided within 6 months after delivery.
7 months to 3 years after delivery:
Free components. Buyer needs to pay shipping fees and reparing fees.
For the lights couldn't be repaired, a whole new light would be send out after charging 50% of the retail price.
Before you make any returns or warranty requests, send your order number, a photo or video of the faulty product,
and a description of the faulty product to contact us via the form below, our engineers will assist you.
Don't love your new CTLite LED grow light? Before you make the decision to return, feel free to reach out to us by email for a complimentary consultation and we will do our best to help you out with any concerns or questions.
We accept order cancellation before the product is shipped or produced. If the order is canceled you will get a full refund. We cannot cancel the order if the product is already shipped out.
If you wish to return a product, please contact us to get the return label,and we will be pleased to provide you with a full or partial refund based on the product condition when returned to us, and subject to the other terms and conditions.
Before returning any product or proceeding to initiate a product return, please review the following return/refund terms and conditions below, which set out the different refund and return details.
Eligibility of the return of planting lights is based on the following criteria:
Return Validity
Up to 30 days from the date you received your item. The delivery date will be based on our tracking records.
If 30 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange.
Return Packaging
Product/s must be returned in the ORIGINAL PACKAGING.
Shipping
If the return is caused by the consumer, the consumer should be responsible for the shipping fee. If you receive a refund, the cost of return shipping will be deducted from your refund. And it is your responsibility that the package arrives safely to us. (Do note that you are responsible for any damage or loss of goods during the return process. We encourage you to pay for shipping insurance to cover such damage and loss. You are responsible for any insurance claim filing with the carriers.)
If due to our reasons, the goods received are damaged or not correct, the consumer is not required to bear the shipping fee for this reason.
Refund will be initiated within 3-5 business days of us receiving the product and after inspection. Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 3-5 business days.
We reserve the right to give a partial refund in cases when the return is not in an unused condition, is damaged, or has missing parts not due to our error (If the return is caused by the consumer).
We will not accept returns in the following conditions:
Items outside the 30 days warranty time frame.
Used or misused items.
If you still return it, the return shipping fees should be at buyer's responsibility, and we'll charge based on the product condition.
CTLite Technology Co., Ltd. is a professional manufacturer that specializing in research, design,
production and sales of LED lighting products with years of experience in the field.
The main products include high-end programmable LED grow lights, LED aquarium lights with RoHS,
FCC and CE certification.
-Pursuing excellence product, meeting or exceeding your expectations.
-Establish long-term and reliable cooperative relationships with you.

Q1:Can you send me free sample or Can I have a sample order for grow tent?
A: Yes, We welcome your sample order, and we’re also willing to send you free sample to help us test and check quality. You only need to show your real grow journal to help our other customers to know more about it.
Q2: How many days can I get my package after placing order?
A: we arrange shipment in 24 business hours with 3-5 business days fast shipping method if stock is enough. If the area needs to be shipped from China, usually the shipping will take 7~10 business days, considering the custom clearance time.
Q3: Can I cutomize my own Logo/Design/Spectrum?
A: Yes, you can, please email us or contact us via platform to confirm more details
Q4:we have a commercial project,Can you help offer a solution
A:Yes,please message us more detail of your project,we will give our best advice.
Q5:What is your warranty?
A: We offer 2-5 years warranty for all our led grow lights, while grow tents are final sale upon usage. We have repair center in
USA, Canada, AU, UK, Germany,Russia. We will reply within 24 business hours.
Q6: What shipping methods do you use?
A: AU Post or Direct Freight for shipments within Australia, UPS and Fedex for shipments within United States, Yodel for the United Kingdom, etc. As to international shipping from China, the lights will be shipped via Fedex, UPS, DHL, EMS, etc. If you would like to specify a shipping method or carrier, please let us know and we will do our best to arrange it for you.
Q7.What's the difference between your CTLite grow light bar and flu spyd light,or other brands ?
1). CTLite lights has more color and wavelength lights-3000K,5000K,660nm Red and IR 760nm All in One. You don’t need to buy more
lights for different color or wavelength. CTLite multiple bar series light will save you a big budget.
2). 100% pure aluminum material heat radiation,and CTLite use UV Protection pc cover, prevent the diodes from corrosion and
vulcanization in humid environment. This makes CTLite lights have a far longer lifetime than other brand lights.
3). For user’s safety, CTLite use electric shock proof covers on every connections.
4)CTLite use the driver with UL certificats ,the whole light with ETL.
5). CTLite is more friendly on the price, will save your money.
Q8.What brand of the Leds?
High Efficiency 5630 561b plus ,lm561c,lm301b,301h and smd2835,depend on customers requirements.
Q9.Can you daisy chain these lights?
Yes ,usually used in the projects,need to change cables.
Q9. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q10. Do you offer guarantee for the products?
A: Yes, we offer 3-5 years warranty to our products.
Q11. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production and confirm the design
firstly based on our sample.
Q11: Do you offer guarantee for the products?
A: Yes, we offer 3-5 years warranty to our products.
Q12: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will
be less than 0.2%.
Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we
will send you parts for replacement, as solo is very easy to fix, and all you need is a screw driver.
Q13. Do you have CE, RoHS FCC ETL Certificates?
A: Sure we do
Q14. What payment method do you accept?
A: We accept PayPal, TT (Bank Telex Transfer), payoneer payment, LC payment.


