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Horticulture Lighting Group

Horticulture Lighting Group HLG 350 Diablo 350W 120V LED Quantum Board Grow Light with Samsung LM301H LM351H Deep Red, Growing Lights for Indoor Plants, Full Spectrum, Dimmable, ETL/UL Certified

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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Aug 7 – Aug 11
Order within 10 hours and 26 minutes
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Features

  • 35 WIDE DESIGN: With a rectangular footprint this vegetation light is ideal for flowering in small grow spaces or vegging in a commercial grow; Farming lights have 911 PPF high output
  • BETTER CANOPY PENETRATION: Full Spectrum White + Deep Red LED light diffuses evenly, making it ideal for full veg / flower cycles plus healthy, uniform growth so there will be no more brown tips. Footprints are Veg 5x5 ft at 24 and Flower 3x5 ft at 15; Dimensions are 34.5 x 10" x 2.75"; Recommended mounted height is 15-24 inches above canopy; Quantum Board QB 648 made by Samsung
  • DIMMABLE GROW LIGHT: Dimmer knob allows output to be adjustable from 60 watts to 330 watts; Features a passive cooling design for reduced heat, which means better temp control for your indoor herb garden
  • COMMERCIAL LED GROW LIGHTING: HLG 350R Commercial Indoor Horticulture LED grow light is designed to replace a 600W HID and uses our 2 full spectrum Advanced Diablo Quantum Boards for 2.75 PPF/W with Samsung Full Spectrum White LM301H & Deep Red 660nm
  • DESIGNED & ASSEMBLED IN USA: Grow lighting leader, HLG, designed the 1st high-density modular light engine for horticulture and through constant innovation, has led the way in developing efficient, effective growing lights. This HLG indoor grow lamp comes with a 5-year warranty.

Brand: Horticulture Lighting Group


Color: Red + Full Spectrum


Material: Aluminum


Style: Industrial


Light fixture form: Floodlight


Brand: Horticulture Lighting Group


Color: Red + Full Spectrum


Material: Aluminum


Style: Industrial


Light fixture form: Floodlight


Room Type: Living Room


Specific Uses For Product: Garden


Indoor/Outdoor Usage: Indoor


Power Source: Corded Electric


Installation Type: Flush Mount


Special Feature: Dimmable


Control Method: App


Light Source Type: LED


Shade Material: Aluminum


Number of Light Sources: 2


Voltage: 120 Volts


Light Color: Full spectrum + Deep Red


Embellishment: Crystal


Warranty Type: Limited


Lighting Method: LED


Specification Met: ETL, UL


Number of Items: 1


Wattage: 330 watts


Bulb Base: E26


Switch Type: Dimmer


Unit Count: 1.0 Count


Water Resistance Level: Not Water Resistant


Brightness: 2004 lumen


Efficiency: High Efficiency


Mounting Type: Inside Mount


Shade Color: White


Fixture Type: Non Removable


Assembly Required: Yes


Manufacturer: Horticulture Lighting Group


Size: HLG 350


UPC: 850019573190


Light Output Maximum: 2004 Lumens


Model Name: HLG 350


Set Name: HLG 350 Diablo


Item Weight: 13.42 pounds


Item model number: HLG-350R-DIABLO-FBA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 7 – Aug 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Better than expected.
I thought I had a very good led light, but wanted better coverage in my 24 x 42 in. grow. I got the even coverage I wanted, and the yield and quality were excellent. Why does this light cost so much? Because it's worth it.
Reviewed in the United States on November 24, 2024 by Amazon Customer
    • HLG 350 Diablo
I couldn't be happier with this light. I was using a older HLG 320w and these new Diablo boards are just so much more efficient. It does run a little warmer than the older one but it's putting out so much more light! There's a noticeable difference in the way the plants respond too. All positive!
Reviewed in the United States on April 10, 2024 by Jason L
    • Quality light, cheap accessories.
Light itself is amazing. Does produce a small amount of heat. The metal clips that came with it were junk. First time I squeezed one to attach it, it locked open, the other was limp out of the package.
Reviewed in the United States on October 2, 2021 by Daniel
    • GAME CHANGER
Review Image by ThadudeB ThadudeB
I've been wanting a better grow light for my 2×4 ac infinity tent and replace my spider farmer so I started doing a little research wait doing alot of research and sure my old light was not a bad light at all so don't get me wrong spider farmer lights not bad at all I just noticed talking to people online on grow apps online forums one company was always coming up way more than the other light brands that I was familiar with like I know the ac,sf,vosun,which are all nice lights but when I started reading up on HLG and light spectrum and for my needs byebye spider farmer hello HLG 35OR and you see the title GAME CHANGER HLG all you will need I will buy HLG and nothing else ... show more
Reviewed in the United States on August 23, 2023 by ThadudeB ThadudeB
    • The girls are very happy:)
I wanted to wait a bit before posting my review. I still love my light. I’ve noticed a big change from my sf1000 to this-of course I when I switched to this light I had to start really really low, at 10 or even under, but have been slowly raising the light and am at about 8 now. My girls LOVE this light. Praying daily:) I’m glad I got this light. Great product, with all the good components I was looking for. ... show more
Reviewed in the United States on May 5, 2021 by L
    • Light was used.
Item was used. Came in a beat up box and the kight/accessories just thrown in. There is no way I'll trust the quality of this. Very disappointed.
Reviewed in the United States on June 8, 2025 by Murphy
    • Great purchase
Product came with ups and required signature so beware that you will need to be home when the delivery date is set. It is over 500 so it’s to be expected. The light is very light for the amount of light you get out of it. I’m using it for a 3x3 tent and it can be used from seedling to flowering for your plants I recommend starting at about 3-5 clicks and increasing as the plant grows. You don’t want to set it at full power from the start as it will be too much . Great investment 5/5 pricey but worth it. ... show more
Reviewed in the United States on September 10, 2021 by Bania
    • Amazing lights
Review Image by Amazon Customer Amazon Customer
I put 3 of these in my 10x5, more than enough light. My plants love them, and I like the fact that I lit this big tent up at under a 1000 watts. I'll be a HLG customer for life.
Reviewed in the United States on May 20, 2022 by Amazon Customer Amazon Customer

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