uv light for growing plants FGI UVA LED Grow Light. 340-400nm. Premium quality. 8’ power cord
SKU: 50122960865
uv light for growing plants

uv light for growing plants FGI UVA LED Grow Light. 340-400nm. Premium quality. 8’ power cord

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Description

uv light for growing plants FGI UVA LED Grow Light. 340-400nm. Premium quality. 8’ power cordCommercial 385nm UVA LED light bar for supplemental UV in grow rooms, coral systems, and controlled environments. Quick Specs: Type: UVA LED Light Bar Wavelength: 385nm (single band) Length: 44 in (4 ft) Power: 30W Voltage: 100277V AC Waterproof: IP68 Housing: Sealed aluminum + glass lens Applications: CEA, coral, mycology Why 385nm UVA? How This Compares: Standard UV lights: 395405nm (visible violet) FGI: true 385nm UVA Standard: blended spectrum

Commercial 385nm UVA LED light bar for supplemental UV in grow rooms, coral systems, and controlled environments.

Quick Specs:

  • Type: UVA LED Light Bar
  • Wavelength: 385nm (single-band)
  • Length: 44 in (4 ft)
  • Power: 30W
  • Voltage: 100–277V AC
  • Waterproof: IP68
  • Housing: Sealed aluminum + glass lens
  • Applications: CEA, coral, mycology

Why 385nm UVA?

How This Compares:

  • Standard UV lights: 395–405nm (visible violet)
  • FGI: true 385nm UVA
  • Standard: blended spectrum
  • FGI: single-band precision
  • Standard: IP65 or lower
  • FGI: IP68 fully sealed

Why UVA (385nm) Matters

Plant morphology is influenced by spectral composition. While PAR lighting drives growth, UVA wavelengths (around 380–400nm) play a role in plant signaling, structure, and secondary metabolite expression.

Unlike broad-spectrum fixtures, this unit allows growers to:

  • Introduce controlled UV exposure
  • Fine-tune lighting strategies
  • Experiment with spectrum-specific responses

Extended PAR (E-PAR) Context

Recent research, including work from Utah State University, has expanded the understanding of usable light for plants beyond traditional PAR (400–700nm).

  • E-PAR Range: ~380–740nm
  • UVA sits at the edge of biologically active light
  • Supplemental UVA helps bridge the gap between artificial lighting and natural sunlight

Natural sunlight includes measurable UVA energy (~380nm), which is typically missing from standard LED grow lights.

Applications

  • Commercial indoor cultivation (CEA)
  • Supplemental UV for flowering and morphology control
  • Coral fluorescence and reef systems
  • Mycology environments
  • Research and controlled trials

Core Features

  • True 385nm UVA Output (Single Spectrum)
    Narrow-band ultraviolet designed for controlled application. No blended or diluted spectrum.
  • IP68 Waterproof Construction
    Fully sealed aluminum housing with a bonded clear glass lens. Built for high humidity, washdown, and commercial grow environments.
  • Universal Input Voltage (100–277V)
    Ready for commercial installations without additional drivers or conversion.
  • 4-Foot Linear Coverage (44”)
    Even distribution across canopy rows, vertical racks, or coral systems.
  • 30W Precision Output
    Low power, high-impact supplemental lighting for targeted use cases.

Natural Sunlight Spectrum Blue Energy 1.2234 umols

Typical Full Spectrum LED Lack 380NM UV

Full spectrum LEDs have limited blue spectrum which peak at 460nm.  

Full Spectrum LED 460nm Blue Energy Levels .0514 umols

Full Spectrum LED with Supplemental 380NM UV 

Adding supplemental 385NM UV creates a secondary peak of blue energy at 1.5047 umols at 12" from the canopy, roughly equaling natural sunlight. 

Supplemental UV Spectrum plus Full Spectrum Blue Energy 1.5047 umols (3x greater) 

Build Quality

These are high quality units with a crystal glass lens cover to protect the diodes and allow for cleaning. The all aluminum frame dissipates what little heat the bar creates. At 30 watts the Lightbar sips energy too. 

Spectrum Theory 

Blue energy is scientifically known to help form more compact plants. More lush leaf growth, stronger and larger stems and tighter internodal spacing.

We gave a prominent researcher at a major State University one our 385NM UVA Lightbars: 

"Your UVA lights arrived and we have confirmed their 385 nm peak. This looks like a high quality fixture." He went on to say: "Elevated exposure to UV photons is known to enhance the synthesis of UV blocking compounds in the leaves of many species and it is reasonable to think that UV photons can increase the synthesis of secondary metabolites in plants." And further, "I expect we will find value in dosing of CSat plants with UV photons, but not surprisingly, the effects will likely interact with UV wavelength, intensity, timing of delivery, and growth stage."

The UVA Lightbar fits neatly inside the frame of our Uniformity Pro LEDs as well as many other multi-bar style full spectrum LEDs.

Use

We recommend two of our UV-A LEDs over each 4'x4' area. The slim design allows them to be hung inside the frame of most 6 and 8 bar LEDs. Mounting height should be at the same level to avoid creating shadowing. 

Control

A basic digital 110V wall timer can be used, or if using the TrolMaster Hydro X we recommend the DSP-1 module for 110V or DSP-2 for 120V power connection and multiple on/off timer programming.

 Technical Specifications

  • Power: 30W (±5%)
  • Diodes: 20 UVA LEDs
  • Input: 100–277V AC, 50/60Hz
  • Thermal Output: 102.3 BTU
  • Rating: IP68 waterproof
  • Dimensions: 44.88” × 2.24” × 1.53”
  • Weight: 4.4 lbs

 

Photometric File Download

Product Warranty (see our warranty here)

3 year warranty

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 50122960865

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Anonymous123
Belleville, US
★★★★★ 4
Truly non-toxic but a little rough and uneven
I’m very impressed with the packaging of this. When I first opened the box I was shocked that there was a plastic wrapping around the boards when they promised to be non toxic but then I saw the sticker that the wrapping was not plastic and I was very happy. The boards themselves are pretty nice and a good thickness but the only thing is I feel like the board is a little rough and parts of the board come up and are not smooth.
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Reviewed in the United States on April 7, 2026
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TracyAZ
Phoenix, US
★★★★★ 3
Not Durable…Splintered….
Had to chuck these. I loved them at first but they are not durable. Scratched themselves up right away and then the mid sized one started to splinter. I didn’t even have it for very long before I had to get rid of them. Long enough to not be able to return. I prefer the bamboo as far as wood goes, but switched to an antibacterial. It’s crazy because I had the same cutting boards for years and in the past month I’ve had to replace them 3 times now. I was so disappointed because there were such amazing reviews. Sadly that was not the case for me. I give it a 3 because they are absolutely beautiful…..you get points for being beautiful I suppose in this world. But not durable. At least not for me.
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Reviewed in the United States on January 22, 2026
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EmmaNuelle
Port Orchard, US
★★★★★ 5
Perfect cutting board set of 3
Very nice cutting boards, and I especially love the peace of mind knowing there is not harsh chemicals used to make these. Thank you!
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Reviewed in the United States on May 27, 2026
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Jay Matthews
Houston, US
★★★★★ 5
This is Mike Wittmer at his finest
Format: Paperback
If you are at all familiar with Mike Wittmer's books and devotionals, you know he has a sharp wit and an engaging style. This book delivers both in abundance. With clarity and conciseness, Mike walks through 40 well-known theological concepts popular among Americans. Although he writes from an Evangelical perspective, Mike brings his trademark honest critique to each topic, admitting his own biases while still highlighting the validity of other viewpoints. His explanations, critiques, and examples will make you laugh and think, and I truly believe this book would make a great basis for a Sunday school or other church education series.
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Reviewed in the United States on June 29, 2023
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EyeDoc
Grantham, US
★★★★★ 5
Fortunate to buy this book
Format: Kindle
Fantastic book, packed with well written information and interspersed with humor. Well worth the price, I will now have to look for more of Wittmer's works, and hope he has more coming in the fashion of this one. This is the 3rd Urban Legends of the bible Ive read in the series and also the best.
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Reviewed in the United States on January 4, 2026

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