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
4.2/5
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.
- 300 WPower draw
- 778 µmol/sPPF
- 2.6 µmol/JEfficacy
- 3x5 ftCoverage
Check price at Amazon$169.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Long 40 in shape fits a seed starting rack, a long shelf or a 2x4 ft tent
- Dimmer and daisy chain built in
- Low price for its output
Cons
- Lower efficiency than bar lights
- App control needs a module bought separately
- The maker store had it only on pre-order when checked
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 | TSL2000 |
|---|---|
| Light | |
| Power draw | 300 W |
| PPF | 778 µmol/s |
| Efficacy | 2.6 µmol/J |
| Coverage | 3x5 ft |
| Spectrum | 660-665 nm red, 730-740 nm IR, 3000-3200K and 6000-6500K white |
| Build | |
| Form | Panel |
| Dimmable | Yes |
| Controller or app | Yes |
| Warranty | 5 years |
Alternatives in this power
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
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
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