Spider Farmer SF2000 LM301H EVO Review: 2023 vs. 2026

Last updated: August 2026

Quick answer: The 2023 Spider Farmer SF2000 with Samsung LM301H EVO diodes used fewer total diodes than the prior LM301B version, but it produced slightly higher light readings in my short comparison while also drawing slightly more power. That made it a small performance improvement in my setup—not proof of a major efficiency gain and not a completed grow review.

Important old-model warning: The EVO light in this video is also an old generation. Spider Farmer’s 2026 SF2000 listing now uses Bridgelux 3030 diodes, so a new SF2000 is not the same specifications as either Samsung model I compared. I consider the move away from the tested Samsung hardware a downgrade, even though Spider Farmer says the current model maintains similar output and efficiency. My State of the Indoor Grow Equipment guide explains why a newer version can be worse than the product that earned the original reviews.

Video chapters

1. 0:00 — Another SF2000 update after three months
2. 0:08 — The LM301H EVO change
3. 0:32 — 490 diodes versus 606
4. 0:55 — Why fewer diodes did not mean lower readings
5. 1:09 — Slightly higher intensity and power draw
6. 1:24 — Diode layout and dimmer observations
7. 1:38 — Limited first-look conclusion

Selecting a timestamp opens the video at that moment without moving you away from this section.

What changed in the 2023 EVO model?

The updated panel replaced the previous Samsung LM301B white diodes with LM301H EVO diodes. I counted 448 Samsung diodes plus 42 infrared diodes, for 490 total. The prior panel had 606 total diodes. The newer layout was not perfectly symmetrical, and the dimmer looked different while keeping the same basic function.

The video repeats a 3.14 µmol/J efficiency figure associated with the EVO diode. Treat that as a component-level rating, not a measured wall-plug efficiency for the complete fixture. Drivers, diode current, spectrum and thermal conditions all affect what the whole light delivers.

Did the EVO model perform better?

In my short comparison, the EVO model produced slightly higher light-intensity readings despite having fewer diodes. It also pulled slightly more power. That means it delivered a little more output in the shown test, but the video did not calculate fixture efficiency from a full photon-output measurement divided by wall power.

My conclusion was practical: if the price stayed the same, the small improvement made the EVO version the better of those two 2023 choices. I did not claim a dramatic difference, and this video did not follow the EVO fixture through harvest.

What this test does not prove

• It is not a calibrated integrating-sphere test of total PPF.
• It does not establish system-level µmol/J from a few canopy readings.
• It does not test long-term reliability, heat, warranty service or multiple samples.
• It does not show a complete grow or harvest under the EVO panel.
• It does not tell you how the current 2026 Bridgelux SF2000 performs.

For the original real-grow evidence, see the 2022 SF2000 pair test and the two-grow harvest follow-up. The earlier 2023 driver and dimmer update fills the step between them and this EVO version.

2023 EVO test versus the 2026 SF2000 listing

Check the current official SF2000 listing before buying. The current numbers above are manufacturer claims, not fresh HWGrow measurements. Match the diode package, model number, seller, controller and written warranty on the exact item.

Recommended lights and measurement tool

Spider Farmer SF2000The model family discussed here. The listing may now contain different Bridgelux hardware, so verify the exact generation before buying.View product

Spider Farmer SF4000A larger SF-series option with its own current hardware. Do not infer its performance from this short SF2000 EVO comparison.View product

Phone PPFD diffuserUseful for repeatable relative canopy maps when paired with a supported phone app and a consistent measurement method.View product

Affiliate disclosure: HWGrow may earn a commission from qualifying purchases at no additional cost to you. Product generations and sellers can change behind a listing; verify the exact hardware before purchase.

Want help reading the measurements?

Use the LED measurement guide before copying another grower’s height or dimmer setting. The Grow With Me Masterclass connects lighting, environment, feeding and plant response inside a guided workflow. For a specific fixture question, ask HWGrow and include the exact generation and your full canopy map.

Spider Farmer SF2000 EVO FAQ

Was the 2023 LM301H EVO SF2000 better than the LM301B version?

It produced slightly higher light readings in my short comparison while also drawing slightly more power. I called it a small practical improvement, not a major independently verified efficiency gain.

Why did the EVO panel have fewer diodes?

I counted 490 total diodes on the EVO panel versus 606 on the prior version. Diode count alone does not determine output; diode type, drive current, layout and power also matter.

Is the current 2026 SF2000 the same EVO light?

No. The official 2026 listing describes Bridgelux 3030 diodes, not the Samsung LM301H EVO hardware shown here. HWGrow considers that component change a downgrade from the tested model.

Did this video prove the fixture’s µmol/J efficiency?

No. A fixture-level efficacy result requires total photon output and wall power measured under a defined method. The video compared light readings and noted power draw but did not perform that complete calculation.