Lumatek 100W LED Bar – Full Spectrum Supplemental Light

You are looking at the Lumatek 100W LED Bar, a piece of engineering designed not to replace your main system, but to perfect it or serve as the engine for your propagation area. This full-spectrum device offers professional efficiency of 2.9 µmol/J, meaning it converts electricity into plant-usable light better than almost anything else in its class, ensuring your plants get exactly what they need without wasting energy.

Why you shouldn't trust everything you hear about "Wattage"

There is a massive problem in the growing world: the obsession with raw power. Many growers believe that if they don't have a 1000W spotlight, they aren't doing it right, or worse, they think that hanging one big light in the center of the tent solves everything. This leads to a lot of frustration when they see the edges of their crop underperforming.

This confusion leads to poor buying decisions, like spending a fortune on a massive fixture that creates "hot spots" in the center while leaving the corners in the dark. The result? You end up with uneven canopies, burnt tips in the middle, and fluffy, undeveloped flowers on the sides. You think the light isn't working, but the reality is that the light distribution is the enemy.

The solution is smart lighting, not just "more" lighting. This Lumatek bar is the honest answer to those dark spots. It allows you to inject high-quality photons exactly where your main light doesn't reach, or to run a dedicated clone station with the perfect intensity to avoid stressing delicate roots. It is precision over brute force.

Typical myths about supplemental LED bars

• Myth: "100W is too weak to grow anything decent."
  Reality: It's not about watts, it's about PAR (Photosynthetically Active Radiation). With 295 µmol/s, this bar drives photosynthesis efficiently for clones, veg, or side-lighting flowering plants.
• Myth: "You need purple light for vegetative growth."
  Reality: That's old tech. This bar uses a Full Spectrum (white light) that mimics sunlight, which is better for plant structure and terpene production.
• Myth: "LEDs don't produce any heat, so my plants will freeze."
  Reality: They emit less radiant heat than HPS, preventing leaf burn, but they still warm the air slightly. This allows you to place the light much closer to the canopy safely.
• Myth: "You can use any shop light for cuttings."
  Reality: Standard shop lights lack the specific spectrum and efficiency needed for rapid rooting and vigorous early growth.

What this product really does (and what it doesn't)

The Lumatek 100W LED Bar is a specialist. It brings professional-grade light quality (Osram and Lumileds diodes) to the areas of your grow room that are usually neglected. It improves the density of lower buds and balances the light footprint in larger tents. If you use it for propagation, it speeds up the process significantly compared to fluorescent tubes.

However, let's be clear: this is not designed to be the sole light source for a full flowering cycle in a large 1.2x1.2m tent. It doesn't have the coverage for that alone. It is designed to be a supplemental light or a primary light for small spaces (like a shelf for mothers or clones). Understanding this distinction is key to getting the monster yields you want.

Advantages and benefits when used properly

• Eliminates "Popcorn Buds": By placing this bar vertically or on the sides, you get light to the lower branches, turning fluffy lowers into dense, sellable flowers.
• Superior Propagation: Perfect intensity for seedlings and clones. Pair it with good rooting hormones and watch your success rate skyrocket.
• Passive Cooling: No fans means no noise and fewer moving parts to break. It runs silent and cool.
• Waterproof (IP65): High humidity in your grow room? No problem. The Clear Glue technology protects the diodes from corrosion and moisture.
• External Control: It is fully dimmable and controllable via the Lumatek Digital Panel Plus 2.0 (sold separately), allowing you to simulate sunrise/sunset.
• Energy Savings: High efficiency means you get more light for every dollar you spend on electricity compared to older technologies.

Tips to choose well according to your expectations

If you are looking for a main light to flower a standard 1m x 1m space, you might want to look at a larger fixture like a 100W Grow light LED panel with a square form factor or higher wattage. This bar is linear (strip format), which makes it unique.

• If you want to boost yield in an existing setup: Buy two of these bars and place them on the sides of your main light.
• If you are setting up a clone tent: This is the perfect standalone light for a multi-shelf propagation setup.
• If you have a narrow grow space: The 114cm length makes it ideal for long, narrow corridors or closets.

Frequently Asked Questions

Can I daisy chain multiple bars together?

Yes, the design allows for easy linking and management, especially if you are using an external controller to dim them all simultaneously.

How close can I put this to my plants?

Because of the low heat output, you can get relatively close. For propagation, keep it about 30-40cm away. for supplemental side lighting, you can place it 20-30cm from the canopy without burning leaves.

Does it come with a driver?

Yes, the driver is integrated into the unit (remote ballast), making it a plug-and-play solution. You don't need to buy extra power supplies.

Is it better than a fluorescent T5 for clones?

Absolutely. It is much more efficient, lasts longer (60,000+ hours), and provides a spectrum that encourages stronger, stockier growth rather than the stretching you often see with T5s.

Personal Experience of Pevgrow’s CEO (Alan)

I've heard so many growers complain that their grow tents 100X100 yield poorly on the edges. They blame the nutrients or the genetics, but it's almost always a light footprint issue. I started using these Lumatek bars vertically in the corners of my larger setups, and the difference was night and day. The lower buds, which I used to throw into the trim bin for hash, started coming out hard and resinous.

In my opinion, this is the best investment for a grower who already has a main light but wants to take their quality to the next level. Also, for keeping mother plants, it's a no-brainer. It runs cool, so you don't struggle with heat in smaller vegetative chambers. It’s a piece of gear that pays for itself after one harvest just by the increase in gram-per-watt efficiency.