9 Best Quantum Board Grow Lights of 2026
Nine quantum board grow lights compared, from AC Infinity IONBOARD and HLG boards to Mars Hydro, Spider Farmer, VIPARSPECTRA, and VIVOSUN, with diodes, output, and dimming.
By Ethan Cole
Updated November 2, 2026
A quantum board is a flat aluminum board covered in hundreds of small mid-power LEDs, cooled passively without fans. The name came from early DIY Samsung boards; today it covers most board-style tent lights. They are compact, quiet, and simple, which makes them the default choice for small and mid-size tents.
This guide compares nine boards from 95 to 600 watts. For bar fixtures see bar style grow lights.
Safety note: grow tent lights draw from about 65 to 850 watts. Hang them from hangers rated for the fixture’s weight, plug them into a grounded outlet (GFCI-protected in a humid tent), keep drivers and cords off wet floors, and follow the maker’s hanging height. Many of these lights include far-red or infrared (730nm) diodes and a few include UV (395 to 405nm); do not look into them at close range. We describe what each maker lists; we do not promise growth or harvest results.
All Products Compared
| Product | Best For | Power (Listed) | Diodes | Output or Efficacy (Listed) | Notable |
|---|---|---|---|---|---|
| AC Infinity IONBOARD S24 | Best Overall | 220W | Samsung LM301H | Not listed | IP-65, 0 to 100% dimmer |
| HLG 600 Rspec | Premium | 600W | Not listed | 1,529 µmol/s, 2.60 µmol/J | ETL/UL, dimmer |
| HLG 100 V2 | Small Premium Board | 95W | 192 Samsung LM301 (see note) | 224.51 µmol/s, 2.43 µmol/J | 4000K, not dimmable |
| MARS HYDRO TS1000 | Lowest Cost per Watt | 150W | 354 LEDs | Not listed | 120-degree reflector hood |
| Spider Farmer SF1000 | Five-Year Warranty | 100W | Not listed | 2.5 µmol/J system | Fanless |
| VIPARSPECTRA XS1000 | Daisy Chain to 20 | 100W | Samsung LM301H compatible | Not listed | 3000K, 5000K, 660, 730nm |
| Gerylove SP1000 | Includes Hygrometer | 120W | 234 LEDs | 2.7 µmol/J | Stepless dimming |
| IMVSINCERE 100W | Samsung LM301 | 100W | Samsung LM301 | 2.5 µmol/J | 3500K + 660 + 740nm |
| VIVOSUN VS3000 | IP65 Board | 300W | Not listed | 2.9 µmol/J | IP65 surface, daisy chain |
| Award | Product | WikiHomeLED Score About WikiHomeLED ScoreThe WikiHomeLED Score is our own rating from 0 to 10, calculated the same way for every product from Amazon buyer ratings, adjusted for how many ratings each product has. It is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | Price | |
|---|---|---|---|---|
AC Infinity IONBOARD S24
|
8.4/10 | $229.00 | Buy | |
| Best Premium |
HLG 600 Rspec FR 600W 120V LED Quantum Board Grow
|
8.5/10 | $559.95 | Buy |
Horticulture Lighting Group HLG 100 V2 4000K 95W
|
8.4/10 | $149.00 | Buy | |
| Best Value |
MARS HYDRO TS1000 150W Grow Light
|
8.7/10 | $85.49 | Buy |
| Best Overall |
Spider Farmer SF1000 LED Grow Lights for Indoor
|
8.7/10 | $69.99 | Buy |
100 Watt Led Grow Light Dimmable Compatible
|
8.2/10 | $69.93 | Buy | |
| Best Budget |
Gerylove LED Grow Light, SP1000 Sunlike Full
|
8.4/10 | $49.98 | Buy |
IMVSINCERE LED Grow Lights for Indoor Plants 100W
|
8.2/10 | $54.99 | Buy | |
VIVOSUN VS3000 LED Grow Light with Full Spectrum
|
8.2/10 | $284.99 | Buy |
AC Infinity IONBOARD S24
HLG 600 Rspec FR 600W 120V LED Quantum Board Grow
Horticulture Lighting Group HLG 100 V2 4000K 95W
MARS HYDRO TS1000 150W Grow Light
Spider Farmer SF1000 LED Grow Lights for Indoor
100 Watt Led Grow Light Dimmable Compatible
Gerylove LED Grow Light, SP1000 Sunlike Full
IMVSINCERE LED Grow Lights for Indoor Plants 100W
VIVOSUN VS3000 LED Grow Light with Full Spectrum
Top 3 Quantum Board Grow Lights Reviewed
#1 AC Infinity IONBOARD S24: Best Overall
Why We Picked It
AC Infinity’s IONBOARD line scores 4.5 stars on about 1,050 ratings, pooled across sizes. The S24 is the 2×4 board: 220 watts of Samsung LM301H diodes on a unibody aluminum board, IP-65 rated for humid tents.
The built-in dimmer runs from 0 to 100 percent, and the board connects to AC Infinity controllers for automated grow cycles, scheduling, and app control. Sizes S22, S33, and S44 cover 2×2, 3×3, and 4×4 tents.
Key Specifications
- Power: 220W
- Diodes: Samsung LM301H
- Moisture: IP-65
- Dimming: 0 to 100%
- Smart control: with AC Infinity controllers
- Coverage: 2×4 ft
| Pros | Cons |
|---|---|
|
|
Things to Consider
The full range is compared in AC Infinity grow lights.
Best For
Humid 2×4 tents, or anyone using AC Infinity fans.
Skip It If
Skip it if you want a published PPF.
Check current pricing and availability for the AC Infinity IONBOARD S24.
#2 HLG 600 Rspec: Premium
Why We Picked It
Horticulture Lighting Group pioneered the quantum board, and the 600 Rspec scores 4.8 stars on about 270 ratings, the highest rating here. HLG lists 1,529 µmol/s at 2.60 µmol/J and ETL and UL certification.
It is designed to fit a 4×4 tent, with a dimmer knob and a recommended hanging height of 28 to 36 inches. The spectrum is full spectrum white plus deep red.
Key Specifications
- Power: 600W
- Output: 1,529 µmol/s, 2.60 µmol/J (listed)
- Spectrum: white plus deep red
- Size: 26 x 21.5 x 2.75 in
- Mounting height: 28 to 36 in (recommended)
- Certification: ETL, UL (listed)
| Pros | Cons |
|---|---|
|
|
Things to Consider
HLG publishes its own coverage figures for veg and flower at specific heights; follow them rather than guessing.
Best For
4×4 tents where you want a premium board.
Skip It If
Skip it for small tents or tight budgets.
Check current pricing and availability for the HLG 600 Rspec.
#3 HLG 100 V2: Small Premium Board
Why We Picked It
The HLG 100 V2 is a 95-watt board with 192 Samsung diodes, 4000K white, and a listed 224.51 µmol/s at 2.43 µmol/J. It scores 4.6 stars on about 330 ratings.
HLG rates it for 2×2 ft flowering and 3×3 ft veg, and it ships with a non-dimmable Mean Well power supply and a standard plug. The title says LM301B diodes; the text says LM301H.
Key Specifications
- Power: 95W
- Diodes: 192 Samsung (LM301B in title, LM301H in text)
- Output: 224.51 µmol/s, 2.43 µmol/J (listed)
- Color: 4000K white
- Coverage: 2×2 ft flower, 3×3 ft veg
- Power supply: Mean Well, not dimmable
| Pros | Cons |
|---|---|
|
|
Things to Consider
No dimmer means you set intensity by height alone.
Best For
A small tent, cabinet, or shelf for herbs and seedlings.
Skip It If
Skip it if you want dimming.
Check current pricing and availability for the HLG 100 V2.
How to Choose a Quantum Board
Board Size and Tent Size
100-watt boards fit 2×2 tents, 150 to 220 watts 2×4 or 3×3, and 300 to 600 watts 3×3 to 4×4.
Diode Claims
Samsung LM301 diodes are common, but some listings say “compatible with” rather than using them. Look for published PPF and µmol/J.
Dimming
All boards here dim except the HLG 100 V2.
How We Evaluate Quantum Board Grow Lights
We did not grow plants under these lights. We compared manufacturer specifications and Amazon listing details, and ranked products by the WikiHomeLED Score, which adjusts the Amazon star rating for the number of ratings (ratings checked November 2, 2026). To qualify, a product had to be a board-style LED grow light (many mid-power diodes on a flat passive heatsink), with at least 20 ratings and a rating of 4.1 stars or higher. PPF, PPFD, efficacy (µmol/J), and coverage figures are as published by each seller and are not our measurements. Sellers often list a larger vegetative coverage and a smaller flowering coverage; we quote both where given. Several listings make yield claims; we do not repeat them. Mars Hydro TS, Spider Farmer SF, VIVOSUN LumaLight, VIPARSPECTRA P, and AC Infinity IONBOARD ratings are pooled across every size on one Amazon listing family, so the same rating can appear for different sizes. The full method is on our How We Review page. Brands are capped at two entries.
Frequently Asked Questions
What is a quantum board grow light?
A flat board with many small LEDs and a passive aluminum heatsink, without fans. Horticulture Lighting Group popularized the design.
Are quantum boards better than bar lights?
Boards are compact and cheaper; bars spread light more evenly in larger tents and run cooler.
Are Samsung diodes worth it?
They are efficient, but the whole fixture matters. Compare published µmol/J for the fixture, not the diode.
Do quantum boards need a fan?
The boards are passively cooled; the tent still needs an exhaust fan.
Final Verdict
AC Infinity’s IONBOARD S24 is our quantum board pick for its sealed build, Samsung diodes, and sizes for every tent. HLG’s 600 Rspec is the premium 4×4 board with published output, and the HLG 100 V2 brings that build quality to a small tent. For the lowest cost, Mars Hydro’s TS1000 and Spider Farmer’s SF1000 have huge rating histories.
About the author
Ethan Cole leads research and editing at WikiHomeLED, comparing LED lighting for the home through manufacturer specs, manuals, safety listings and owner feedback. Every product is scored against the criteria on our How We Review page, and picks are updated when models change.