Overview
Growshop · LED Grow LightsPhytonaut LED Grow Light 240 W (Zamnesia) is part of our led grow lights range in the Growshop. High-efficiency 240 W full-spectrum LED grow light with uniform canopy coverage. Ideal for 80×80 grow tents and consistent multi-plant grows.
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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 240 W: Full-Cycle Light for Medium Grows
The Zamnesia Phytonaut 240 W LED Grow Light is designed for growers who want predictable canopy behaviour from start to finish. Rather than relying on a single high-intensity hotspot, it delivers strong, evenly distributed output across the grow area. That balanced spread makes training, plant spacing, and daily management more straightforward, with fewer compromises caused by uneven light gradients.
Phytonaut LED Grow Light 240 W: Consistent full-spectrum performance
Built with high-quality Sanan and Osram LED chips, the Zamnesia Phytonaut 240 W provides a balanced full-spectrum output suitable for the entire grow cycle, from vegetative growth through flowering.
Key output: 697.10 µmol/s* PPF with an efficacy of 2.82 µmol/J*. This delivers a high level of usable light for efficient photosynthesis while maintaining strong energy efficiency for its wattage class.
Coverage: 120° light distribution for even canopy development
A 120° beam angle spreads light widely across the grow space instead of concentrating intensity in the centre. This helps reduce underlit edges and supports more uniform canopy development, particularly when managing multiple tops that need to progress at the same pace.
Passive cooling: Zero noise, ≥54,000-hour lifespan
The Phytonaut 240 W operates silently thanks to passive thermal management. With no fans required, noise is eliminated and long-term maintenance is reduced. It runs within a temperature range of 0–40°C and is rated for a lifespan of ≥54,000 hours.
Dimming: Manual levels for flexible control
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. This allows you to start at lower output for young plants and gradually increase intensity as the canopy expands and light demand rises.
Build quality: IP65 protection for humid grow spaces
With an IP65 waterproof rating (splash-resistant), the Phytonaut 240 W is built for humid indoor grow environments.
Mounting height : The correct 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 240 W is particularly well-suited to:
- Growers seeking reliable full-spectrum lighting with consistent, predictable results
- Indoor setups where wide, even light distribution is essential for canopy uniformity
- Those who prefer silent, low-maintenance operation without fan cooling
- Growers upgrading to a higher-output LED while maintaining strong efficiency
*Values may vary due to manufacturing tolerances and test conditions. Tighter spaces are better served by the Phytonaut LED Grow Light 120 W, rated at 330.69 micromol/s and 2.74 micromol/J against the 697.10 micromol/s and 2.82 micromol/J of this fixture. Both live among our LED grow lights from small to large.
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