Mars Hydro FC1500
#2 in Under 300 WFull review
An efficient bar light for a small tent of herbs, greens or a few vegetable plants.
Amazon $115.99$115.99
The Mars Hydro FC1500 and the Spider Farmer G1500 are evenly matched, rated 4.5 and 4.5. The Spider Farmer G1500 costs $6 less ($109.99 vs $115.99).
Spider Farmer G1500
#4 in Under 300 WFull review
A low cost, app controlled bar light for a 2x2 ft seedling or herb tent. It matches pricier bars on efficiency.
Amazon $109.99$109.99
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 under 300 W LED grow light; a clear win is highlighted. How we rank explains each one.
| Factor weight | Mars Hydro FC1500 | Spider Farmer G1500 |
|---|---|---|
| Overall rating | 4.5/5 | 4.5/5 |
| Value 30% | 81 $0.27 per µmol/s ($115.99, 427.5 µmol/s) | 84 $0.26 per µmol/s ($109.99, 426 µmol/s) |
| Efficacy 30% | 85 2.9 µmol/J | 80 2.8 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 FC1500 | Spider Farmer G1500 | |
|---|---|---|
| Light | ||
| Power draw | 150 W | 150 W |
| PPF | 427.5 µmol/s | 426 µmol/s |
| Efficacy | 2.9 µmol/J | 2.8 µmol/J |
| Coverage | 2.5x2.5 ft | 2x2 ft |
| Spectrum | 660-665 nm red, 2800-3000K and 4800-5000K white | 660-665 nm red, 730-740 nm IR, 2800-3000K and 4800-5000K white |
| Build | ||
| Form | Multi-bar | Multi-bar |
| Dimmable | Yes | Yes |
| Controller or app | Yes | Yes |
| Weight | 6.2 lb | 5.3 lb |
| Warranty | 5 years | 5 years |