SKU: 45199560635
blue led lights for growing plants

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

Sale price$26.18 Regular price$29.09
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Description

blue led lights for growing 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: 45199560635

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Lee
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★★★★★ 1
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This product was purchased as a holiday gift for my spouse. Out of the box the product made a load mechanical noise (similar to a baseball card in bicycle spokes) – but it produced a nice heated frothed milk. Less than 3 months after first using the frother, it completely stopped frothing. The heating unit continued to work but the spinning disk did not move. I contacted the seller and within 48 hours they requested a video of proof that the frother was no longer working. I provided the requested video 6 hours after receipt of seller's request. Since then, I have not received any communications, and my follow up emails receive NO RESPONSE. Amazon should consider pulling this product and seller from their website. UPDATE: After multiple follow-up contacts over a month's time, manufacturer eventually issued a full refund.
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Reviewed in the United States on April 20, 2026
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Traci
Charlottesville, US
★★★★★ 4
Total game changer
Great frother. Nice capacity for a lot of foam. I've had it for a couple months. It's started out pretty quiet for about a month but I've noticed that the motor seems to be a little louder than usual but still a low sound. Not a big deal though. It works great. Just wanted to mention that the quality of milk matters. For example, I shop at Aldi and I get their oat milk. It doesn't froth as good as a higher quality name brand oat milk. Lower quality almond milk won't hardly froth at all. Get a high quality almond milk. Whole milk and 2% does great. I love the fact that I can warm my milk in case I want a hot matcha latte which I have often or golden milk. I also want to mention that I also use flavored creamer which makes a nice foam. Cold or hot This machine is a space saver. Easy to use. Easy to clean. You get two frothing elements which can be cleverly hidden under the frother when not in use. I use this almost every day. I really recommend this frother. It's a game changer
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Reviewed in the United States on February 6, 2026
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Organized Digital Life
Dallas, US
★★★★★ 5
One of My Most Used Kitchen Appliances
I've been using this milk frother almost every day, and it's become one of my favorite kitchen appliances. I originally purchased it because I wanted an easy way to make coffee shop-style drinks at home instead of spending money on coffee runs. It works great for both hot and cold foam, so I use it year-round for everything from hot coffee to iced coffee. The foam comes out smooth and creamy, and it's made a noticeable difference in my homemade drinks. I also like that it's simple to use and easy to clean after each use. If you enjoy lattes, iced coffee, cappuccinos, or just want to make your morning coffee feel a little more special, this has been a worthwhile purchase for me. It's one of those products that I use often enough that it has easily earned a permanent spot on my kitchen counter.
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Reviewed in the United States on May 29, 2026
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Kitkat
New York, US
★★★★★ 5
I love this thing!
Best invention ever! This little milk frother froths perfectly every time and maintains its foam height for the perfect latte or iced coffee. It works much better than my steamer/frother on my espresso machine so much so that I don’t feel like I need the espresso machine anymore, especially if I use this in tandem with a coffee press. The frother is compact so it doesn’t take up counter space, it’s quiet, and it is easy to clean and it creates foam for a coffee that tastes like I just went to a coffee shop! What more could you ask for?
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Reviewed in the United States on May 15, 2026
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Jo
Bozeman, US
★★★★★ 3
Nice product
It works well, but takes a while to heat up.
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Reviewed in the United States on March 13, 2026

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