The LUMATEK 50W FAR-RED LED BAR is a powerful supplemental lighting solution designed to extend the spectral output of LUMATEK ZEUS LED fixtures from the standard [400–700 nm] full-spectrum range to an enhanced [400–750 nm] range. This expansion into the far-red spectrum leverages the Emerson Enhancement Effect, a phenomenon that boosts photosynthetic efficiency when far-red photons (701–750 nm) are combined with traditional PAR light. By tapping into this effect, the fixture plays a crucial role in improving plant development, particularly in promoting stem elongation and leaf expansion during the vegetative phase and the early flowering stage. This not only helps fill out the grow space more efficiently but also increases the plant's exposure to light, improving overall canopy density.
Engineered to fit directly onto LUMATEK ZEUS frames, the 50W FAR-RED LED bar integrates seamlessly with existing full-spectrum lighting systems. Its peak output at 730 nm includes 13 μmol/s of output in the 600–700 nm range and 140 μmol/s in the 701–800 nm range. This makes it an ideal tool for enhancing PSII photochemical efficiency and overall photosynthetic rate, especially when used in conjunction with ZEUS fixtures. The bar operates using its own independent driver and also supports daisy-chain connectivity, allowing for the linking of up to 18 units. Each bar features a single input/output socket, so growers can choose to connect either a power cable or a daisy chain cable as needed. Both cables are sold separately (4-meter power and 1.5-meter daisy chain).
For optimal performance and light distribution, it is recommended to integrate at least two FAR-RED bars with ZEUS 465W Pro 2.9, ZEUS 600W Pro 3.1, or ZEUS 1000W Xtreme CO₂ fixtures, which typically cover footprints between 1.2 x 1.2 meters and 1.5 x 1.5 meters. For larger grow areas like the ZEUS 1000W Pro (1.5 x 2.0 meters), three bars are advised to ensure uniform far-red radiation coverage. The ideal FAR-RED application rate should maintain a 10–20% ratio relative to the full-spectrum light, as defined in Lumatek's Grow Light Strategies.
Although beneficial, FAR-RED radiation should be used with care, as excessive exposure can stress plants. If signs of damage appear, growers should either increase the distance between the fixture and the plant canopy or reduce the length of the FAR-RED photoperiod. There is no universally fixed photoperiod for FAR-RED lighting, as it depends largely on the grower's goals and the morphological traits desired in the plant species.
The LUMATEK 50W FAR-RED LED BAR is rated with an effective photosynthetic photon flux (ePPF) of 155 µmol/s over the 400–750 nm range, with an efficacy of 3.1 µmol/J. The fixture operates at 50W input power (±5%) at 230V and is powered by an integrated driver. It has a beam angle of 140°, weighs 1.2 kg, and measures 1000 x 48 x 42 mm. Its thermal management is handled via a passive heat sink, and the unit is both water- and dust-resistant, boasting an IP65 rating. With a long L90 lifetime of over 45,000 hours and the ability to function in environments ranging from -10°C to +40°C and up to 80% non-condensing humidity, the fixture is built for durability and consistent performance.
This bar is not dimmable but is compatible with daisy-chain installation, supporting up to 18 linked units for large-scale setups. Its plug-and-play design with internal driver simplifies installation, and it can be easily attached to all ZEUS Full-Spectrum LED fixtures. With top-efficacy far-red diodes and a focus on enhancing plant growth at critical developmental stages, the LUMATEK 50W FAR-RED LED BAR is an essential tool for advanced growers seeking to optimize light quality and maximize yields.
https://lumatek-lighting.com/50w-far-red-led-bar/
