A low cost, efficient bar light for a 2x2 ft tent of seedlings, herbs or greens.
Amazon $105.99
A quiet single panel for a 2x4 ft tent or a seedling shelf. Choose it for its simple build; a bar light gives more light for the money.
- 200 WPower draw
- 553.9 µmol/sPPF
- 2.7 µmol/JEfficacy
- 2x4 ftCoverage
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- Lights a 2x4 ft tent or a full shelf of vegetable starts from one fixture
- Dims down for seedlings and up for fruiting plants
- Fanless design runs silently
- Can daisy chain and dim several lights together from a GGS controller
- The maker lists two output figures, so its real output is uncertain
- Costs more per unit of light than Spider Farmer’s own bar lights
The Spider Farmer SF Series family
Every Spider Farmer SF Series model we rank, smallest first. Ratings compare each against its own power.
| Model | Power draw | Rating | Price |
|---|---|---|---|
| Spider Farmer SF1000 | 100 W | 4.1/5 | $69.99 |
| Spider Farmer SF1000D | 100 W | 4.1/5 | $59.99 |
| Spider Farmer SF2000 (this one) | 200 W | 4.3/5 | $155.99 |
| Spider Farmer SF4000 | 450 W | 4.3/5 | $259.99 |
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 | SF2000 |
|---|---|
| Light | |
| Power draw | 200 W |
| PPF | 553.9 µmol/s |
| Efficacy | 2.7 µmol/J |
| Coverage | 2x4 ft |
| Spectrum | 660-665 nm red, 730-740 nm IR, 2800-3000K and 4800-5000K white |
| Build | |
| Form | Panel |
| Dimmable | Yes |
| Controller or app | Yes |
| Weight | 6.8 lb |
| Warranty | 5 years |
Alternatives in this power
A low cost, app controlled bar light for a 2x2 ft seedling or herb tent. It matches pricier bars on efficiency.
Amazon $109.99A low cost, quiet panel for seed starting, herbs and a small 2x2 ft tent. Pick a bar light instead if you want the most light per watt.
Amazon $59.99Compare
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