• Premium Quality LED Diodes 
• Available with Fixed or Dimmable Control
• Free & Fast UK Delivery
• Full Spectrum
  
• Perfect for Microgreens
• Versatile Application
• Super Stealthy
• IP65 Waterproof
• Ultra Low Power Consumption
• Zero Noise
  
• 40w Power Output (10w Per Bar)
  
• Pay As You Grow in 3 instalments with Klarna

At first glance, it’s almost laughably modest. Each bar measures just 305mm in length, weighs a featherlight 113 grams, and consumes a mere 10 watts. Multiply that across the included four-bar kit and you’re looking at a total system draw of just 40W. 

But here’s the twist: this little setup punches well above its weight. Every now and then, something rather unassuming comes along and quietly upends your expectations.

No fireworks, no dramatic entrance - just a simple, slender object that looks like it belongs under a kitchen cabinet rather than at the heart of a carefully engineered growing environment. And yet, the Spider Farmer GlowBar 10 manages exactly that.

The GlowBar 10 isn’t trying to flood a warehouse with photons or compete with industrial-scale fixtures. That would be like bringing a teaspoon to a swimming pool. Instead, it focuses on something far more refined - precision lighting for compact spaces.

With a carefully balanced spectrum combining 5000–5500K cool white, 3000–3500K warm white, and a targeted 650–660nm red, the GlowBar 10 delivers a full-spectrum output that closely mimics natural sunlight. It’s not aggressive or overwhelming. Rather, it’s calm, measured, and remarkably well-suited for seedlings, salads, bonsai trees and microgreens.

The result is a light output that encourages steady, healthy growth without the sort of intensity that causes stress or excessive heat. Lovely. 

Market Leading Efficiency. 

Now, let’s talk numbers, because this is where things get interesting.

The GlowBar 10 achieves a PPE of ≥2.2 μmol/J, which is seriously impressive for a product in this category. Even more remarkable is the claim that its 40W system can effectively replace a traditional 200W plant light. That’s not just efficiency - it’s borderline sorcery.

With a total luminous flux of 5720 lumens and 192 LEDs spread across the four bars, the light is distributed evenly across its coverage area of approximately 110 × 40 cm when using two bars per tier. It’s not about brute force; it’s about delivering usable light exactly where it’s needed.

And because it runs so cool, you won’t find yourself battling heat buildup or scrambling to improve ventilation. It simply gets on with the job quietly and efficiently.

Low Maintenance. IP65 Waterproof. 

Unlike many compact lighting solutions that feel as though they’d disintegrate at the first sign of humidity, the GlowBar 10 is built with a reassuring level of toughness.

Each bar is protected by a heat-resistant PC clear lampshade and carries an IP65 waterproof rating. This means it can comfortably handle high-humidity environments such as greenhouses, propagation chambers, or densely packed plant stands without so much as raising an eyebrow.

Dust? Irrelevant. Moisture? Barely noticed. The protective design not only safeguards the LEDs but also extends their lifespan, ensuring consistent performance over time.

And when it does eventually need cleaning, a simple wipe with a damp cloth is all it takes. No fuss, no drama - just the way it should be.

Ready. Set. Grow.

Some grow lights require a degree in engineering and the patience of a saint to install. The GlowBar 10, thankfully, does not.

With a comprehensive mounting kit that includes clips, magnets, cable ties, and nails, you can have the entire system up and running in minutes. No complicated wiring, no head-scratching manuals - just plug it in and off you go.

The bars can be mounted virtually anywhere: shelves, racks, plant stands, greenhouses, cupboards, or any other space where conventional lighting simply won’t fit. It’s this flexibility that makes the GlowBar 10 such a compelling option for modern indoor growing setups.

Connect Up To 36 Bars. 

Perhaps the most clever aspect of the GlowBar 10 is its daisy-chain capability. You can link up to 18 bars on a 110V system or an impressive 36 bars on 220V, creating a scalable lighting network that grows alongside your ambitions.

Better still, the system supports mixed connections, meaning you can integrate it with other compatible lighting bars without needing to redesign your entire setup. It’s modular, adaptable and refreshingly straightforward.

And if you’re building out a plant stand system, the numbers are reassuringly clear. Around 6 bars will comfortably support smaller setups, while larger configurations may require 10 or more, depending on your layout. It’s a system that scales logically, without unnecessary complication.

High Performance. Low Cost. 

• Total Power: 40W (4 × 10W bars)
• PPE: ≥2.2 μmol/J
• Luminous Flux: 5720 lm
• Spectrum: 3000K + 5000K + 660nm
• Diodes: 192 total (48 per bar)
• Coverage: 110 × 40 cm (2 bars per tier)
• Input Voltage: AC100–277V
• IP Rating: IP65 waterproof
• Dimensions (per bar): 305 × 33 × 32 mm
• Weight (per bar): 113g

Sometimes, the best solution isn’t bigger - it’s smarter.

The GlowBar 10 is perfect for growers working with limited space, delicate plants, or multi-tier systems where traditional lighting simply doesn’t make sense. It offers a refined, efficient, and highly adaptable lighting solution that prioritises usability over brute force.

It won’t dominate your grow room or send your electricity bill into orbit. Instead, it quietly delivers exactly what your plants need, exactly where they need it.

Available with a fixed or a dimmable output - it's suitable for everything from tiny seedlings and micro greens to chunky greens or peppers.

The Glowbar 10. Compact. Efficient. Capable. 

The Spider Farmer GlowBar 10 is a masterclass in doing more with less. It’s compact, efficient, and surprisingly capable - proof that you don’t need enormous power to achieve excellent results. 

If you’re looking to build a tidy, efficient, and scalable indoor growing setup without the usual complexity, this is an exceptionally clever place to start. It may not shout about its abilities, but once it’s in place, you’ll quickly realise it doesn’t need to.

Sometimes, the quiet ones are the most impressive of all.