Spider Farmer SF1000D LED Grow Light

All-in-one 100 W grow light with Samsung LM301B diodes, an onboard dimmer knob and silent fanless cooling - a value pick for a 2x2 ft indoor space.

4.2 / 5

★★★★★ ★★★★★ Highly recommended

Strengths

All-in-one build - the driver and dimmer knob sit on the light, so there is no separate box to mount
Genuine Samsung LM301B diodes at a beginner-friendly price
Onboard dimmer covers every stage, from seed trays to fruiting

Watch outs

Lower photon output (around 218 umol/s) than the pricier SF1000 - it is sized for a single 2x2 ft area
Flowering coverage is a 60 x 60 cm square; the 3x3 ft figure is vegetative only
Diode generation varies - Samsung LM301B on the UK listing, Bridgelux on the 2026 factory revision - so read the listing

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Research-based verdict Unless labelled otherwise, verdicts are research-based. We are container gardeners ourselves; grown-by-us content is labelled.

By Rob Griffiths2 min read

Power draw: 100 W (+/- 10%), AC100-277 V
PPF: About 218 umol/s at 240 V
Efficacy: 2.5 umol/J headline; up to 3.14 umol/J at single-diode level
Coverage: 60 x 60 cm (2x2 ft) flowering; up to 90 x 90 cm (3x3 ft) vegetative
Diodes: Samsung LM301B on the UK Amazon listing; 2026 factory revision uses Bridgelux
Driver: Onboard integrated driver - no external box
Dimming: Onboard dimmer knob (0-10 V); daisy-chain support for unified dimming
Spectrum: Full spectrum: 660-665 nm red, 730-740 nm IR, ~3000 K and ~5000 K white
Cooling: Fanless aluminium heatsink - silent
Dimensions: 31.5 x 28.0 x 5.6 cm
Weight: 1.88 kg
Rated lifespan: 55,000 hours
Warranty: 5 years, with UK/EU service centres