SKU: 6288747357
blue grow lights for plants

blue grow lights for plants FGI UV LED Grow Light Set. 340-400 nm Extended Spectrum Bars

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Description

blue grow lights for plants FGI UV LED Grow Light Set. 340-400 nm Extended Spectrum BarsCommercial 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 Bundle: 2 units Why 385nm UVA? How This Compares: Standard UV lights: 395405nm (visible violet) FGI: true 385nm UVA Standard:

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
  • Bundle: 2 units

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

 Most grow lights stop at 400nm. Natural sunlight does not.

  • UVA range (380–400nm) exists in sunlight but is typically absent in LED systems
  • This wavelength range influences plant morphology and secondary responses
  • Allows growers to fine-tune spectrum beyond traditional PAR lighting

This is not a broad-spectrum “blue boost.”
This is precision UVA supplementation.

Science + E-PAR Context

Research from Utah State University and others has expanded the usable light range for plants:

  • E-PAR: 380–740nm
  • Extends beyond traditional PAR (400–700nm)
  • Includes UVA at the edge of biologically active light

Adding 385nm helps create a closer spectral match to natural sunlight conditions—something standard LED fixtures lack.

Bundle Advantage (2 Units)

  • Wider canopy or rack coverage
  • More uniform UVA distribution
  • Flexible placement across grow zones or systems

Commercial Build Quality

  • IP68 Waterproof – fully sealed for wet, humid, washdown environments
  • Sealed Aluminum Housing + Glass Lens – durable, corrosion-resistant
  • 100–277V Input – plug into commercial power without modification
  • 4’ Linear Format (44”) – ideal for rows, vertical racks, or coral systems

Applications

  • Indoor commercial cultivation (CEA)
  • Supplemental UV strategies for flowering or morphology
  • Coral fluorescence and reef systems
  • Mycology and controlled environments
  • Research and spectral testing


Sunlight Levels of 380NM UV

Natural sunlight provides plants 1.22 umols of 380nm blue energy. 

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 one of our UV-A LEDs and he said: 

"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 CSativa 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: 6288747357

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Kflo
Lexington, US
★★★★★ 5
Works great. Definitely a good buy and value.
Size: 1 Kit
This was easy to use and made a world of difference on the lenses.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
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Ghost
Draper, US
★★★★★ 5
Let this restoration kit light up your life
Size: 1 Kit
I have a car that is 24 years old and is my daily driver.  Understandably, the headlight lenses have deteriorated to the point where I was using my brights exclusively at night yet never being flashed to turn them down.  I got quotes between 60-80 dollars per headlight for restoration which I just wasn't willing to pay so I decided on this kit to try restoring them myself.  I read reviews before I ever make a decision on a product and noticed many reviewers of other products stated that this product works better so I went ahead and purchased it.  Man, am I glad I did!!!   The kit arrived late this afternoon, I opened it, READ AND FOLLOWED THE INSTRUCTIONS and within 1 1/2 hours had turned a travesty into a triumph.  I started by taping around both lights with 1 inch blue painters tape to protect the paint around the lights.  The kit comes with everything necessary to remove most moderate deterioration but be sure to purchase one that corresponds with your actual situation.  I believe my lenses were far beyond "moderate" but with some heavy elbow grease, the correct use of both supplied sanding disks and my hose set on "mist" I was able to sand off years of damage leaving behind a smooth, albeit opaque surface.  After making sure everything was totally dry using both towels and my leaf blower, I was ready for the Magic!!!  I opened the first clearcoat package (while wearing the provided glove) and lightly but steadily applied the liquid with the supplied towelette and the required 50% overlapping passes.  The opaque lenses instantly turned clear upon contact with the clearcoat.  After waiting around 25 minutes to be sure the lenses were completely dry I opened the second package of clearcoat and applied it in the same manner as the first.  I had no misses or problems with my first coat but for those who do...NOW is the time to make corrections, NOT during the first coat process.  Leave things to dry for around an hour and you are done. The end result?  AWESOME, INCREDIBLE, UNBELIEVABLE...shall I go on???  Not necessary, but I can say I am thrilled with the outcome.  My wife said the lights look new and I agree, there is a night and day difference between before and after. Only time will tell how long the restoration lasts but for now I am very very happy with the results I got from this 3M product.  I highly recommend it to anybody who can read, understand and follow the instructions.  5 stars all the way on this one!!!      
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Reviewed in the United States on June 24, 2025
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ab4u
Fort Morgan, US
★★★★★ 5
Excellent 3M Headlight Restoration Kit!
Size: 1 Kit, Size: 1 Kit
Better than expected results. This 3M Kit needs no drill; all done by hand. Check out their videos on YouTube; follow the easy instructions. This $10 3M Kit, an hour and a half of my time, saved me over $300! What a serious savings! Thank you 3M for another fantastic product!
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Reviewed in the United States on April 6, 2026
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Angela Allen
San Leandro, US
★★★★★ 5
Affordable and it works !
Size: 1 Kit, Size: 1 Kit
Works great price is decent and easy to use
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Reviewed in the United States on May 21, 2026
K
Verified Purchase
Kirsten Fahey
Louisville, US
★★★★★ 5
Amazing Product!
Product worked great on some of the older trucks I use for construction vehicles. This product made all the lights look brand spanking new. Awesome product, and definitely recommend if you have any fogging in your headlights. It doesn’t matter the age of the cars/trucks as this product makes them look brand new regardless. I used on both new and older vehicles and you couldn’t tell the difference because the lights looked so clean on both. The product worked amazing . I also noticed at nighttime the headlights provided better visibility too! Perfectly priced!
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Reviewed in the United States on August 15, 2025

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