Mars Hydro FC3000
#7 in 300 W and upFull review
An efficient bar light for a 3x3 ft tent of tomatoes or peppers.
Amazon $199.99$199.99
The Mars Hydro FC3000 is the better LED grow light overall, rated 4.4 to 4.2. The Mars Hydro FC3000 leads on efficacy. The Mars Hydro TSL2000 costs $30 less ($169.99 vs $199.99).
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
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Mars Hydro FC3000 for efficacy (2.9 µmol/J vs 2.6 µmol/J).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 300 W and up LED grow light; a clear win is highlighted. How we rank explains each one.
| Factor weight | Mars Hydro FC3000 | Mars Hydro TSL2000 |
|---|---|---|
| Overall rating | 4.4/5 | 4.2/5 |
| Value 30% | 73 $0.23 per µmol/s ($199.99, 855 µmol/s) | 78 $0.22 per µmol/s ($169.99, 778 µmol/s) |
| Efficacy 30% | 85 2.9 µmol/J | 60 2.6 µmol/J |
| Features 15% | 70 dimmable, controller or app | 70 dimmable, controller or app |
| Warranty 25% | 100 5-year warranty | 100 5-year warranty |
Specifications
| Mars Hydro FC3000 | Mars Hydro TSL2000 | |
|---|---|---|
| Light | ||
| Power draw | 300 W | 300 W |
| PPF | 855 µmol/s | 778 µmol/s |
| Efficacy | 2.9 µmol/J | 2.6 µmol/J |
| Coverage | 3x3 ft | 3x5 ft |
| Spectrum | 650-665 nm red, 2800-3000K and 4800-5000K white | 660-665 nm red, 730-740 nm IR, 3000-3200K and 6000-6500K white |
| Build | ||
| Form | Multi-bar | Panel |
| Dimmable | Yes | Yes |
| Controller or app | Yes | Yes |
| Warranty | 5 years | 5 years |