Spider Farmer SF4000
#9 in 300 W and upFull review
A single panel that lights a 4x4 ft tent of full size vegetables. It suits growers who want one simple fixture; bar lights are more efficient.
Amazon $259.99$259.99
The Spider Farmer SF4000 and the Mars Hydro TS3000 are evenly matched, rated 4.3 and 4.2. The Spider Farmer SF4000 costs $10 less ($259.99 vs $269.99).
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
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.
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 | Spider Farmer SF4000 | Mars Hydro TS3000 |
|---|---|---|
| Overall rating | 4.3/5 | 4.2/5 |
| Value 30% | 75 $0.23 per µmol/s ($259.99, 1,141 µmol/s) | 73 $0.23 per µmol/s ($269.99, 1,151 µmol/s) |
| Efficacy 30% | 70 2.7 µmol/J | 70 2.7 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
| Spider Farmer SF4000 | Mars Hydro TS3000 | |
|---|---|---|
| Light | ||
| Power draw | 450 W | 420 W |
| PPF | 1,141 µmol/s | 1,151 µmol/s |
| Efficacy | 2.7 µmol/J | 2.7 µmol/J |
| Coverage | 4x4 ft | 4x4 ft |
| Spectrum | 660-665 nm red, 730-740 nm IR, 2800-3000K and 4800-5000K white | 660-665 nm red, 730-740 nm IR, 3000-3200K and 6000-6500K white |
| Build | ||
| Form | Panel | Panel |
| Dimmable | Yes | Yes |
| Controller or app | Yes | Yes |
| Weight | 14.1 lb | 11.3 lb |
| Warranty | 5 years | 5 years |