Overview
Growshop · LED Grow LightsPhytonaut LED Grow Light 120 W (Zamnesia) is part of our led grow lights range in the Growshop. Compact 120 W full-spectrum LED grow light with even canopy coverage. Designed for small grow tents and reliable performance from seedling to harvest.
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Everything for growing at home: tents and complete kits, LED lighting, fans and filters, nutrients, propagation and harvest gear, plus vegetable, herb and flower seeds.
From the supplier
Phytonaut LED Grow Light 120 W: Even Light for Consistent Indoor Growing
The Zamnesia Phytonaut 120 W LED Grow Light is built around one core principle: deliver consistent, usable light across the entire canopy. Rather than focusing on extreme intensity in the centre, it prioritises balanced distribution, helping plants develop evenly from edge to edge. In small grow tents, that uniform coverage often makes the difference between an average result and a truly satisfying harvest.
Phytonaut LED Grow Light 120 W: Even light for small indoor grows
Equipped with high-quality Sanan and Osram LED chips, the Zamnesia Phytonaut 120 W runs a balanced full spectrum suitable for seedlings, vegetative growth, and flowering.
Key output: 330.69 µmol/s* PPF with an efficacy of 2.74 µmol/J*, supporting efficient photosynthesis across all growth stages while maintaining controlled energy use.
Coverage: 120° light distribution for 60×60 cm tents
This 120 W fixture is optimised for compact grow spaces where weak corners can reduce overall yield. It pairs perfectly with 60×60 cm tents and similar small indoor setups. The 120° light distribution spreads output evenly across the canopy, reducing shadowing and encouraging uniform plant development.
Passive Cooling: Zero noise, 54,000+ hour lifespan
No fans, no added noise. Passive thermal management stabilises operating temperatures and reduces mechanical wear. Designed to operate within a 0–40°C range, the fixture delivers long-term reliability with a rated lifespan of ≥54,000 hours.
Dimming: Manual levels + 0–10 V compatibility
Continuous manual dimming via the rotary knob on the driver, from OFF to full power. Also supports 0 to 10 V external control (10 to 100 percent) for use with the Zamnesia Grow Environment Controller and other compatible 0 to 10 V dimming systems.
For automated control, the Phytonaut 120 W is compatible with 0–10 V systems and can be connected to the Zamnesia Grow Environment Controller (sold separately). This enables automated light scheduling and integrated climate response, ideal for maintaining consistency when you are away from your grow space.
Build: IP65 protection with fixed frame
The Zamnesia Phytonaut 120 W features a durable fixed-frame construction designed for long-term indoor use. With an IP65 rating (splash-resistant), it offers added protection in humid grow environments.
Installation is straightforward. The light comes ready to hang and includes steel hanging cables, hooks, rope ratchets, and a 3 m data cable. Hanging height (canopy distance): seedling / clone 45 to 90 cm, vegetative 30 to 60 cm, flowering 20 to 40 cm. Increase the height if leaves curl or bleach (light too close), decrease the height if growth is stretchy (light too far).
Who Is This Light For
The Phytonaut 120 W is the smallest LED grow light in the Phytonaut range and is well suited for:
- Growers seeking reliable performance in compact spaces
- Beginners who want predictable, even canopy coverage
- Hobby growers running small tents or a limited plant count
*Values may vary due to manufacturing tolerances and test conditions. Stepping up within the same series, the Phytonaut LED Grow Light 320 W reaches 927.64 micromol/s at 2.83 micromol/J, while this 120 W model gives 330.69 micromol/s at 2.74 micromol/J. The whole LED grow light line-up is worth a read before you decide.
Download full Manual here
