LED Grow Lights
this sheet lines up 17 led grow lights on output, efficiency, real power draw, rated coverage and controls, so you can sort by the number you actually care about. click any column to rank the whole field, and remember that a blank cell means the figure hasn't been published or confirmed, not that the feature is missing.
the write-up: LED Grow Lights Compared: 17 Models by Tent Size, PPF and PPE →
 Mars Hydro FC-E4800 480W Bar-Style LED Grow Light | 8.2 Independent PAR testing found its draw close to rated, and it delivers bar-fixture uniformity at a budget price, making it the value pick among 4x4 bar lights. | 1,344 µmol/s | 2.8 µmol/J | 480 W | 16 sq ft | Bar-style (detachable bars) | ||
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 Mars Hydro TS1000 150W Dimmable Full-Spectrum LED Grow Light | 5.4 An approachable, very cheap beginner light, but it trails the field on efficiency, so its running costs eat into the savings over a few grows. | 343 µmol/s | 2.3 µmol/J | 150 W | 4 sq ft | Quantum board | ||
 Mars Hydro TSL2000 300W Dimmable Full-Spectrum LED Grow Light | 6.6 A dependable, cheap 2x4 light that was independently tested, but it costs more to run than newer, more efficient competitors filling the same tent. | 717 µmol/s | 2.6 µmol/J | 300 W | 8 sq ft | Quantum board | ||
 Spider Farmer SE1000W Commercial Bar-Style LED Grow Light | 8.3 A true commercial-grade output fixture sold at hobbyist-accessible pricing, though most home tents cannot use its full intensity without CO2 and serious cooling. | 2,940 µmol/s | 2.9 µmol/J | 1,000 W | 25 sq ft | Bar-style | ||
 Spider Farmer SE1500 150W Smart App-Controlled LED Grow Light | 7.0 Gives a 2x2 tent real flowering intensity plus app scheduling, but costs more than the SF1000 and is overkill for growers who only need veg light. | 428 µmol/s | 2.85 µmol/J | 150 W | 4 sq ft | Bar-style (fixed bars) | ||
 Spider Farmer SE3000 300W Smart App-Controlled LED Grow Light | 7.4 A well-sized smart bar light for 3x3 tents. Its app features are the main draw, though board lights cover the same space for noticeably less money. | 856 µmol/s | 2.85 µmol/J | 300 W | 9 sq ft | Bar-style | ||
 Spider Farmer SE4500 320W Bar-Style LED Grow Light | 7.9 Pushes a 2x4 harder than the SF2000 and adds app control, but the price gap means many small-tent growers will not need the extra intensity. | 913 µmol/s | 2.85 µmol/J | 320 W | 8 sq ft | Bar-style | ||
 Spider Farmer SE5000 480W Bar-Style LED Grow Light | 8.5 Bar layout spreads light more evenly than a board in a 4x4, and app scheduling with sunrise and sunset ramps makes it the smarter upgrade over the SF4000. | 1,420 µmol/s | 2.9 µmol/J | 480 W | 16 sq ft | Bar-style | ||
 Spider Farmer SE7000 730W Bar-Style LED Grow Light | 8.7 The most capable fixture here for a dense 4x4 canopy, pairing top-tier efficiency with an app ecosystem that scales from home tents to small commercial rooms. | 2,146 µmol/s | 2.9 µmol/J | 730 W | 16 sq ft | Bar-style | ||
 Spider Farmer SF1000 100W Full-Spectrum Dimmable LED Grow Light | 7.2 The go-to first light for a 2x2 tent. Hands-on reviews praise its cool, silent running and dimmer knob, but it is modest for heavy flowering. | 246.3 µmol/s | 2.5 µmol/J | 100 W | 4 sq ft | Quantum board | ||
 Spider Farmer SF2000 200W Full-Spectrum Dimmable LED Grow Light | 8.0 A proven, quiet and affordable match for the popular 2x4 tent, with a field-tested design and multi-light dimming that bigger setups can grow into. | 608.5 µmol/s | 2.7 µmol/J | 200 W | 8 sq ft | Quantum board | ||
 Spider Farmer SF2000Pro 200W Samsung LM301H EVO LED Grow Light | 7.5 The square-footprint sibling of the SF2000 built for 3x3 tents, with premium Samsung diodes but little real performance gain over the cheaper standard model. | 599.9 µmol/s | 2.7 µmol/J | 200 W | 9 sq ft | Quantum board | ||
 Spider Farmer SF4000 450W Full-Spectrum Dimmable LED Grow Light | 8.6 The default 4x4 recommendation for good reason: fanless, simple, a Mean Well-class driver and multi-light dimming, at a price that undercuts most bar fixtures. | 1,171 µmol/s | 2.7 µmol/J | 450 W | 16 sq ft | Quantum board | ||
 Spider Farmer SF600 Linear LED Grow Light | 4.0 A good seedling and shelf light, but a hands-on review noted flimsy build and no dimming, so it does not compete with tent fixtures for flowering. | 166 µmol/s | 2.28 µmol/J | 74 W | – | Linear strip (T5 replacement) | ||
 Spider Farmer SF7000 650W Foldable LED Grow Light | 7.6 A solid 5x5 workhorse, but newer SE bar models beat it on efficiency and smart control for similar money, so it now feels like the older option. | 1,786 µmol/s | 2.8 µmol/J | 650 W | 25 sq ft | Foldable bar | ||
 VIPARSPECTRA XS1000 100W LED Grow Light | 6.3 A capable 2x2 budget board that tested well for its size, held back by vague manufacturer output figures compared with Spider Farmer's detailed spec sheets. | – | 2.7 µmol/J | 100 W | 4 sq ft | Quantum board | ||
 VIPARSPECTRA XS2000 LED Grow Light with Samsung LM301B Diodes | 6.7 Independent PAR testing showed even coverage in a 2x4, but the lack of a published total PPF figure makes it harder to compare against rivals. | – | – | 220 W | 8 sq ft | Quantum board |
How the AI score works, and who wrote it
A language model rated these, not a test lab. Every score from 1 to 10 is an AI assessment of how good the product is against the other 17 in this comparison, formed from the specifications we verified plus the published lab reviews and owner reception found while researching each one. Nobody at Slopsheets listened to, wore or plugged in any of it.
It weighs the things a spec table cannot show: how a product is actually reviewed, how well the software works, build quality, and what you get for the money. That is deliberate. An earlier version of this column was pure arithmetic on the table and it ranked a bundle of cheap boxes above a class-leading single unit, because counting hardware is not the same as judging it.
Treat it as an informed starting point and read the sourced comparison, not as a verdict. The score is relative to this comparison only, so it means nothing across categories, and it carries no price, star rating or review count. Every specification behind it is sourced and checked; the score on top of them is opinion.
Frequently asked questions
What actually matters when choosing an LED grow light?
Start with flowering coverage so the light fits your tent. Then compare light output (PPF) between lights of the same size, and use efficiency (PPE) to decide between close matches. Dimming and daisy-chain control are conveniences. In this group nearly every light has dimming, so it rarely separates one from another.
Which spec is marketing noise?
The model number. It isn't the wattage. The SF4000 draws 450 W, the SE7000 730 W and the XS2000 220 W. Sort by actual power draw and PPF, and ignore any number printed in the product name.
How do I compare lights rated for different tent sizes?
Divide PPF by flowering coverage to get light per square foot. Raw PPF favors the biggest fixtures. Per square foot, a 150 W light for a 2x2 can outperform a 450 W light for a 4x4 in its own space.
Should I sort by lowest power draw to save on electricity?
Not on its own. Lower draw usually just means a smaller light. To keep running costs down, sort by efficiency (PPE). A higher PPE means more light from each watt, whatever size light you need.
What does a blank cell in the table mean?
It means the maker hasn't published the figure or our research couldn't confirm it. That's different from 'no'. For example, a few lights have no published total PPF, and some have no confirmed daisy-chain support. Treat a blank as missing information.