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Photontek 50W Far Red LED Bar Light
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Insights
In comparison with Spider Farmer GlowR40 80W Red LED Bar Light
Deciding between these supplemental LED bars comes down to whether you need a specialized spectrum upgrade for a specific fixture or versatile light placement for a crowded canopy. The Photontek 50W Far Red LED Bar is a high-output tool designed to mount directly onto X and XT Series frames, pushing into the 701-750nm far-red range to trigger the Emerson Enhancement Effect. It is ideal for growers looking to optimize photosynthetic efficiency during late veg and flower. In contrast, the Spider Farmer GlowR40 80W Red LED Bar Light provides two bars totaling a 40W draw of 650-665nm red light. These can be hung vertically or horizontally as side or under-canopy lighting, and unlike the Photontek, they can function as standalone units. While the Photontek has a higher 50W power draw, the Spider Farmer offers more control via an included programmable timer and smart 0-10V compatibility, plus a longer 50,000-hour life expectancy and a 5-year warranty.
Price History
Product Information
The lowest price for the Photontek 50W Far Red LED Bar Light right now can be found at Happy Hydro for $159.00. 420.deals compared offers from 4 retailers to find this price, with prices last updated on .
Specifications
The Photontek 50W Far Red LED Bar isn't a standalone grow light, it's a spectrum upgrade. Built specifically to slot into Photontek's X and XT Series fixtures, this bar pushes the usable spectrum out past the standard 400-700nm range and into the 701-750nm far-red zone, tapping into what's known as the Emerson Enhancement Effect to squeeze more photosynthetic efficiency out of every photon your plants are already absorbing.
Why far-red matters in the canopy
Far-red wavelengths sit just beyond what the human eye registers as usable light, but plants read them loud and clear. Mixed in at a 10-20% ratio alongside full-spectrum output, far-red light influences leaf expansion, stem elongation and how efficiently a plant uses the rest of the spectrum thrown at it. Growers running late veg into early flower, or looking to fill out canopy structure before the stretch, tend to get the most out of adding it in.
Built to integrate, not complicate
This bar was designed to mount directly onto the frame of X and XT Series fixtures rather than bolt on as an afterthought. It can run independently or link into a daisy chain of up to 18 bars, so whether you're supplementing a single fixture or an entire multi-light room, scaling up is straightforward. The passive heat sink keeps things running without fans or moving parts, and an IP65 rating means it shrugs off the humidity and splash you'd expect in a working grow space.
Where it earns its spot
As a rule of thumb, Photontek recommends pairing two or more bars with an X 465W PRO or X 600W PRO fixture, and three or more with an X 1000W PRO or XT 1000W CO2 setup. It's not a light you dim or fine-tune output on, this is a fixed 50W add-on that does one job, extending your spectrum reach, and does it consistently across a rated lifespan well north of 45,000 hours.
- Extends full-spectrum output from 400-700nm to 400-750nm
- Delivers far-red photons in the 701-750nm range for the Emerson Enhancement Effect
- Mounts directly to Photontek X / XT Series fixture frames
- Daisy-chain capable, linking up to 18 bars together
- Passive cooling with IP65 waterproof and dustproof rating
- 140 degree light distribution for even coverage across the canopy
What's included
The bar ships ready to mount, though the power and daisy-chain cables are sold separately, so it's worth having those on hand before setup.
- 1 x Photontek 50W Far Red LED Bar
- 2 x Stainless steel mounting hooks
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