4Seasons HELIOS 520w EVO+ LED Grow Light

The Helios 520 EVO+ is built for serious growers who need consistent, high-intensity light across their entire canopy. Delivering peak PPFD readings of 1151 µmol/m²/s directly under the panel, it’s perfect for powering dense flowering. Surrounding zones stay strong too, holding steady between 1080 and 1100 µmol/m²/s, ensuring powerful light intensity across the full core footprint.

What really sets this panel apart is its edge-to-edge coverage. Even at the outer edges of your grow tent or tray, PPFD levels remain solid, ranging from 614 to 773 µmol/m²/s. This minimises light drop-off and drives more consistent growth across your entire grow area, outperforming many LED panels in its class for uniformity and yield potential.

The Helios 520 EVO+ is equipped with an impressive 2,064 diodes, engineered to deliver intense full-spectrum light with maximum efficiency. Each diode operates at just 0.25W when the panel is running at full 520W, which significantly reduces both heat output and wasted energy.

Why does this matter? Running diodes at lower wattage increases light efficacy, meaning more usable light is produced per watt consumed—giving your plants stronger growth while keeping power costs down. It also boosts long-term reliability, as cooler-running diodes experience less stress, extending their lifespan and minimising failure rates—ideal for long-term Australian grow setups.

With over 2,000 diodes spaced evenly across the panel, the Helios 520 EVO+ delivers smooth, uniform PPFD coverage. You’ll avoid hot spots and shadow patches, ensuring your entire canopy receives balanced, consistent light—maximising yield potential from edge to edge.

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The Helios 520 EVO+ features a precision-engineered diode layout designed to deliver ultra-uniform light distribution across your entire grow area. Unlike traditional LED panels that concentrate intensity in the centre, the diodes on the Helios are strategically spaced to ensure even coverage from edge to edge.

This balanced output means you’ll avoid central hotspots that can burn plants directly under the fixture, while maintaining strong PPFD levels at the edges of your tent or tray—leading to fuller, healthier growth throughout your canopy. The evenly spread diodes also drive deeper canopy penetration, supporting consistent development from top to bottom for better overall plant health and increased yields.

This advanced PCB layout is what sets the Helios 520 EVO+ apart from conventional grow lights, giving Australian growers professional-level results, whether in tents, grow rooms, or full commercial setups.

The Helios 520 EVO+ delivers a carefully optimised full-spectrum light profile, engineered to support your plants from seedling to harvest. Its spectrum is finely tuned to drive faster growth, stronger structure, and heavier yields throughout the entire grow cycle.

The spectrum includes a strong blue wavelength (~450nm / 5000K) to promote compact, vigorous vegetative growth, encouraging strong stems and dense, healthy foliage. The inclusion of green-yellow light (~500–600nm) improves light penetration through dense canopies, supporting even development across your entire plant—not just the top leaves.

As your plants enter bloom, deep red (~660nm) wavelengths kick photosynthesis into overdrive, helping drive larger, denser flowers. Meanwhile, infrared (~730nm) triggers phytochrome shifts, accelerating flowering and pushing yields higher through the Emerson Effect.

This precisely balanced blend of wavelengths allows the Helios 520 EVO+ to deliver not just stronger, healthier plants, but also bigger harvests—all while remaining energy-efficient. Whether you’re growing in tents or commercial rooms, the Helios spectrum gives your plants the full-cycle lighting they need to thrive.