Mars Hydro TS3000
#10 in 300 W and upFull review
A single panel for a 4x4 ft tent of tomatoes or peppers. Choose it if you prefer one simple board; bar lights are more efficient.
Amazon $269.99$269.99
3.3/5
A powerful, US designed panel for a 4x4 ft or larger tent. It costs far more for the same light than the bar lights here.
- 600 WPower draw
- 1,529 µmol/sPPF
- 2.6 µmol/JEfficacy
- 6x6 ftCoverage
Check price at Amazon$559.95
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Enough light for a 4x4 or 5x5 ft tent of fruiting plants
- Dims down to 100 W for seedlings and starts
- Passive cooling runs silently
Cons
- Costs well over half again as much per unit of light as the Spider Farmer and Mars Hydro bars
- No published controller input
- Shorter warranty than the 5 years most rivals offer
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its power. How we rank explains each one.
Specifications
| Model number | HLG600-R |
|---|---|
| Light | |
| Power draw | 600 W |
| PPF | 1,529 µmol/s |
| Efficacy | 2.6 µmol/J |
| Coverage | 6x6 ft |
| Spectrum | full spectrum white (Samsung LM301H) plus 660 nm deep red |
| Build | |
| Form | Panel |
| Dimmable | Yes |
| Warranty | 3 years |
Alternatives in this power
Mars Hydro TSL2000
#11 in 300 W and upFull review
A long, narrow panel for a rack of seedlings or a row of herbs and greens. A good shape for shelves where square panels waste light.
Amazon $169.99$169.99
Mars Hydro TSW2000
#12 in 300 W and upFull review
A mid size panel for a 3x3 ft tent of vegetables or a 4x4 ft tent of seedlings. Buy it direct for the lower price.
Amazon $199.99 Mars Hydro $169.99$169.99
Compare
Compare the HLG 600 Rspec with any other LED grow light →
More from Horticulture Lighting Group: every Horticulture Lighting Group product ranked.