Best Quantum Board Grow Lights in 2026: 5 Picks by Stated Details
The HLG 600 Rspec FR leads this list of quantum board grow lights with the highest stated watts (600W) and a dimming control. All 5 listings are compared on the details stated in each title and on live prices, ranked by stated watts first, then by the number of stated details.
5 picks from 5 LED grow lights that match this guide with a price we can quote today, made by 9 makers. Every price below is live and carries the moment it was read.
The picks at a glance
| # | Pick | LED grow light | Price |
|---|---|---|---|
| 1 | Highest stated watts in this list | HLG 600 Rspec FR 600W 120V LED Quantum Board Grow Light | $559.95 (as of 10/15/2026 16:50 PDT - Details) |
| 2 | 350W quantum board with Samsung chips and dimmer | Horticulture Lighting Group HLG 350 Diablo 350W 120V LED Quantum Board | $549.00 (as of 10/15/2026 16:50 PDT - Details) |
| 3 | 95W quantum board with Samsung chips | Horticulture Lighting Group HLG 100 V2 4000K 95W LED Quantum Board Grow | $149.00 (as of 10/15/2026 16:51 PDT - Details) |
| 4 | 2x2 coverage with dimming and Samsung chips | AC Infinity IONBOARD S22 | $119.00 (as of 10/15/2026 22:26 PDT - Details) |
| 5 | 2x4 coverage with dimming | AC Infinity IONBOARD S24 | $229.00 (as of 10/15/2026 22:26 PDT - Details) |
Which one should you buy?
- For a large grow tent: The HLG 600 Rspec FR states 600W and a dimmer, suiting a setup where high power draw is a priority. See pick 1
- For a 2x4 ft growing area: The AC Infinity IONBOARD S24 names a 2x4 ft coverage area and includes dimming control. See pick 5
- For a 2x2 ft space with Samsung chips: The AC Infinity IONBOARD S22 states 2x2 ft coverage, Samsung LM301H chips, and a dimmer. See pick 4
- For a budget with Samsung chips: The HLG 100 V2 states 95W and Samsung chips, offering a lower-wattage quantum board option. See pick 3
The 5 picks
1 Highest stated watts in this list
HLG 600 Rspec FR 600W 120V LED Quantum Board Grow Light
- Power draw per light
- 600 W
- Light type
- Quantum board
- Dimmable
- Yes
$559.95 (as of 10/15/2026 16:50 PDT - Details)
The HLG 600 Rspec FR states 600W, the highest wattage among these quantum boards, and includes a dimming control. It ranks first by the ordering rule because it has the most stated watts.
Pros
- 600W stated in the title
- Dimmable as the title states
- Quantum board form stated in the title
Cons
- Coverage area not stated by the seller
- LED chip maker not stated by the seller
Good fit if
- You want the highest stated power draw in this quantum board list
- You need a dimmable light
Skip if
- You require a stated coverage area in the title
- You prefer a light with Samsung chips named in the title
Verdict: The HLG 600 Rspec FR leads on stated watts and dimming, but lacks coverage and chip details.
2 350W quantum board with Samsung chips and dimmer
Horticulture Lighting Group HLG 350 Diablo 350W 120V LED Quantum Board
- Power draw per light
- 350 W
- Light type
- Quantum board
- LED chips
- Samsung
- Dimmable
- Yes
$549.00 (as of 10/15/2026 16:50 PDT - Details)
The HLG 350 Diablo states 350W, Samsung LM301H and LM351H chips, and a dimmer. It ranks second because its stated watts are lower than the HLG 600 but higher than the HLG 100.
Pros
- 350W stated in the title
- Dimmable as the title states
- Samsung chips named in the title
Cons
- Coverage area not stated by the seller
- Timer not stated by the seller
Good fit if
- You want a mid-wattage quantum board with Samsung chips
- You need a dimmable light
Skip if
- You need a stated coverage area in the title
- You require a timer stated in the title
Verdict: The HLG 350 Diablo combines 350W, Samsung chips and a dimmer, though coverage is not stated.
3 95W quantum board with Samsung chips
Horticulture Lighting Group HLG 100 V2 4000K 95W LED Quantum Board Grow
- Power draw per light
- 95 W
- Light type
- Quantum board
- LED chips
- Samsung
$149.00 (as of 10/15/2026 16:51 PDT - Details)
The HLG 100 V2 states 95W and Samsung chips. It ranks third because its stated watts are lower than the HLG 350 and HLG 600, but it has more stated details (watts and chip) than the AC Infinity boards that have no watts.
Pros
- 95W stated in the title
- Samsung chips named in the title
- Quantum board form stated in the title
Cons
- Dimmable not stated by the seller
- Coverage area not stated by the seller
Good fit if
- You want a lower-wattage quantum board with Samsung chips
- You do not need a dimmer stated in the title
Skip if
- You require a dimmable light
- You need a stated coverage area
Verdict: The HLG 100 V2 offers 95W and Samsung chips, but lacks dimming and coverage details.
4 2x2 coverage with dimming and Samsung chips
AC Infinity IONBOARD S22
- Light type
- Quantum board
- Coverage area
- 4 sq ft
- LED chips
- Samsung
- Dimmable
- Yes
$119.00 (as of 10/15/2026 22:26 PDT - Details)
The AC Infinity IONBOARD S22 states 2x2 ft coverage, Samsung LM301H chips, and a dimmer. It ranks fourth because it has no stated watts, but it has three stated details (coverage, chip, dimmer), more than the S24.
Pros
- 2x2 ft coverage stated in the title
- Dimmable as the title states
- Samsung chips named in the title
Cons
- Watts not stated by the seller
- Timer not stated by the seller
Good fit if
- You need a stated coverage area of 2x2 ft
- You want a dimmable light with Samsung chips
Skip if
- You require the wattage to be stated in the title
- You need a timer stated in the title
Verdict: The AC Infinity IONBOARD S22 covers 2x2 ft, dims and uses Samsung chips, but its watts are not stated.
5 2x4 coverage with dimming
AC Infinity IONBOARD S24
- Light type
- Quantum board
- Coverage area
- 8 sq ft
- Dimmable
- Yes
$229.00 (as of 10/15/2026 22:26 PDT - Details)
The AC Infinity IONBOARD S24 states 2x4 ft coverage and a dimmer. It ranks last because it has no stated watts and only two stated details (coverage and dimmer), fewer than the S22.
Pros
- 2x4 ft coverage stated in the title
- Dimmable as the title states
- Quantum board form stated in the title
Cons
- Watts not stated by the seller
- LED chip maker not stated by the seller
Good fit if
- You need a stated coverage area of 2x4 ft
- You want a dimmable light
Skip if
- You require the wattage to be stated in the title
- You prefer a light with Samsung chips named in the title
Verdict: The AC Infinity IONBOARD S24 provides 2x4 ft coverage and dimming, but watts and chip details are not stated.
Side by side
| # | LED grow light | Power draw per light | Light type | Coverage area | LED chips | Dimmable | Built-in timer |
|---|---|---|---|---|---|---|---|
| 1 | HLG 600 Rspec FR 600W 120V LED Quantum Board Grow Light | 600 W | Quantum board | not stated | not stated | Yes | not stated |
| 2 | Horticulture Lighting Group HLG 350 Diablo 350W 120V LED Quantum Board | 350 W | Quantum board | not stated | Samsung | Yes | not stated |
| 3 | Horticulture Lighting Group HLG 100 V2 4000K 95W LED Quantum Board Grow | 95 W | Quantum board | not stated | Samsung | not stated | not stated |
| 4 | AC Infinity IONBOARD S22 | not stated | Quantum board | 4 sq ft | Samsung | Yes | not stated |
| 5 | AC Infinity IONBOARD S24 | not stated | Quantum board | 8 sq ft | not stated | Yes | not stated |
How we picked
This guide compares all quantum board grow lights in the catalogue whose title calls them a quantum board or light board. The pool holds 5 listings. They are ranked by stated watts (highest first), then by the number of stated details among light type, coverage area, LED chip maker, dimmable and timer, then by the order in the pool. Only details stated in the listing title are used; missing details are noted as not stated. The lights are compared on stated details and live prices.
How to choose
What a quantum board is and who it suits
A quantum board is a flat panel of LEDs, often with a wide light spread. In this guide, every listing is called a quantum board or light board in its title. Quantum boards are commonly used in grow tents and open spaces where even light distribution is desired. The type itself does not determine plant results; the stated details help narrow choices.
Watts on a quantum board title
The watts figure in a title is the power draw of one light as stated by the seller. Higher watts mean the light draws more power, but the catalogue does not provide light output or efficiency data. Some listings do not state watts; those are placed after listings that do in this guide.
Coverage area stated in the title
Some titles name a coverage area in feet, such as 2x2 or 2x4. This is the width and depth the seller states. The catalogue does not verify how evenly the light covers that area or what plant stage it suits. If coverage is not stated, the seller has not provided it in the title.
Dimmers and controls
A title that says dimmable or names a dimming control means the light can be adjusted. Some quantum boards in this list include a dimmer; others do not state it. A dimmer allows you to change light output, but the catalogue does not give dimming range or method details.
Samsung chips and other chip names
When a title names Samsung LM301H or similar, it means the LEDs use Samsung chips. Other chip makers may appear, but the catalogue only records Samsung, Osram, Bridgelux or Cree. The chip name does not indicate light quality or plant performance in the catalogue.
What to read in the maker's manual
For PPFD, hanging height, hours of light per day, and spectrum details, refer to the maker's manual and product page for each model. The catalogue does not include that data. The manual also covers safety, installation, and electrical requirements.
Questions
Where can I read PPFD, hanging height and hours of light for these quantum boards?
The maker's manual and product page for each model are where to read PPFD, hanging height and recommended light hours. The catalogue does not include those figures. Check the manufacturer's website or the listing page for detailed specifications.
Are all quantum boards dimmable?
No. Only the listings whose titles state dimmable or name a dimming control are considered dimmable in this guide. Of the 5 picks, 4 state dimmable: the HLG 600, HLG 350, AC Infinity S22 and S24. The HLG 100 V2 does not state dimmable.
Do all quantum boards state their watts?
No. Three of the 5 picks state their watts: the HLG 600 (600W), HLG 350 (350W) and HLG 100 (95W). The AC Infinity S22 and S24 do not state watts in their titles.
What does Samsung LM301H mean in a title?
Samsung LM301H is a model of LED chip made by Samsung. When a title names it, the seller is indicating the chip brand and series. The catalogue does not provide performance data for these chips. Two picks in this list name Samsung chips: the AC Infinity S22 and the HLG 350 Diablo.
Can I use a quantum board in a 2x2 ft tent?
The AC Infinity IONBOARD S22 states a 2x2 ft coverage area in its title, which may suit a 2x2 ft space. Other picks do not state coverage. Always check the maker's manual for recommended hanging height and area. The catalogue does not verify fit.
Recent updates
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