Spider Farmer SF300 LED Grow Light.

A small but powerful addition to the Spider Farmer LED Grow Light range. Say goodbye to horrible fluorescents and stupid t5 bulbs.

 

Your Own Tiny Homestead. All Year Round. 

The Spider Farmer SF300 is the sort of product that doesn’t shout about itself. It doesn’t arrive with flashing lights, oversized claims, or a manual thicker than a telephone directory. Instead, it turns up quietly, weighs next to nothing, and then proceeds to make older lighting technology look faintly ridiculous.

This is a 33-watt LED grow light that somehow manages to punch well above its weight. And it does so with calm confidence, zero noise, and an efficiency that borders on smug.

Ruthlessly Efficient.

Let’s address the headline figures, because they’re genuinely impressive.

The SF300 draws just 33 watts from the wall. That’s less electricity than many household light bulbs. Yet inside this slim aluminium body are 192 high-quality Osram diodes, delivering a PAR output of 74.92 µmol/s and a full 5000-lumen punch.

Compared to older fluorescent or T5 tube systems, this little thing delivers around twice the usable light while using a fraction of the energy. And that’s not marketing fluff - real users regularly report up to 40% improvements in growth and yield when switching from tubes.

In short: it’s ruthlessly efficient.

Full Spectrum. Big Flavours. 

Spider Farmer hasn’t cut corners on spectrum either. The SF300 produces a sun-like full-spectrum output, carefully balanced to support early plant development and strong vegetative growth.

You’re getting:

• 660–665nm red

• 730–740nm infrared

• 2800K–3000K warm white

• 4800–5000K blue

This blend encourages healthy root development, vigorous leaf growth, and compact, well-structured plants. The 120° beam angle ensures light spreads evenly at close distances, which means no hotspots, no stressed plants, and no wasted photons bouncing off tent walls.

It’s particularly well suited to seedlings, young plants, microgreens, salad crops, and herbs, where consistency matters far more than raw power.

Grow In Impossible Places.

The SF300 is perfectly at home in places where larger lights would be complete overkill.

Shelves.
Propagation racks.
Closets.
Countertops.
Compact grow tents.

With a coverage area of roughly 60 × 76cm, it provides uniform light without flooding the space with excess heat. And because it runs cool, you can position it close to plants without worrying about scorch marks or stress.

This makes it an ideal solution for growers who want control, efficiency, and predictable results rather than brute force.

Silent. Cool. Built To Last.

One of the SF300’s greatest strengths is how completely uneventful it is to live with.

There are no fans, which means zero noise - literally 0 dB. Cooling is handled passively through the aluminium housing, which stays cool and dissipates heat efficiently.

The casing itself is coated with an anti-moisture and anti-corrosion finish, protecting the internals from humidity and extending lifespan. Spider Farmer rates the diodes at 50,000 hours, which is the sort of number that makes bulb replacements a distant memory.

This is a light you install once and then forget about - and that’s exactly how good equipment should behave.

Ready. Set. Grow.

Setup couldn’t be easier.

The SF300 arrives fully assembled, complete with:

• Power cord

• Hanging kit

• User manual

There’s no driver mounting, no wiring, no ballast nonsense. You hang it, plug it in, and you’re finished. Total setup time? Under one minute.

Weighing just over 1.2 kg, it’s light enough to mount almost anywhere, yet solid enough to feel reassuringly well built.

Brilliant Modern Growing.

The Spider Farmer SF300 is a brilliant example of modern LED grow lighting done properly. It’s compact, incredibly energy efficient, completely silent, and delivers exactly the spectrum plants need during their most important early stages.

It makes fluorescent tubes look outdated.
It keeps electricity costs laughably low.
It fits where larger lights simply won’t.

If you’re starting plants, running shelves or racks, growing microgreens, or just want a reliable, no-nonsense vegetative light that quietly gets on with the job - the SF300 is an absolute gem.

Small light. Smart design. Outstanding results.