4Seasons Helios 720W Evo+

The Helios 720 EVO+ is the flagship 720W fixture in the 4Season range - engineered for serious AU home growers and small commercial operators who want commercial-grade performance with the longevity of a fully passive-cooled design. Advanced diode technology The Helios 720 EVO+ runs a high-density array of 3,226 diodes built around the LM301H EVO white diode as the primary photon source — the current-generation horticultural white LED running at the highest efficacy commercially available. The LM301H EVO delivers up to 3.14 µmol/J at the diode level, paired with OSRAM 660nm red diodes hitting 3.8 µmol/J for flowering and fruiting performance. LM301B white diodes complete the white array, broadening canopy coverage and supporting the even edge-to-edge PPFD distribution that separates the Helios from cheaper LED panels. OSRAM 730nm far-red diodes trigger phytochrome conversion through the Emerson Effect, accelerating flower initiation and increasing final yield potential. Unparalleled efficiency With 3,226 diodes spreading the 720W load, each LED runs at just 0.31W — well below maximum capacity. Running diodes at reduced load delivers three measurable performance gains: higher photon efficacy per watt consumed, significantly extended diode lifespan, and more uniform light distribution with minimised hotspots. The fixture is rated for 50,000+ hours of consistent performance. Tested performance — 1.2m x 1.2m grow tent, 45cm hang height, full output: Average PPFD: 1,162 µmol/m²/s Peak PPFD: 1,444 µmol/m²/s Corner PPFD: 966-989 µmol/m²/s See Par Chart Algorithmically optimised PCB layout The diode layout deliberately clusters more LEDs at the ends of each bar and fewer in the centre. This counter-intuitive design eliminates the hot-centre / weak-edge pattern most LED panels suffer from, producing genuinely uniform PPFD across the entire footprint and improving canopy penetration through dense foliage. Optimised full spectrum The Helios 720 EVO+ delivers a complete PAR spectrum engineered for every stage of plant development: Blue (~450nm, 5000K) — boosts chlorophyll absorption, drives compact vegetative growth with strong stems and healthy leaves Green-yellow (500–600nm) — improves light penetration through dense canopy, ensuring uniform growth at every plant level Red (660nm, OSRAM) — drives flowering and fruiting, increases bud density and yield Far-red (730nm, OSRAM) — triggers phytochrome conversion for accelerated flowering through the Emerson Effect Oversized aluminium heatsinks for superior heat dissipation The Helios 720 EVO+ runs ultra-wide aluminium heatsinks the full length of each LED bar - significantly larger than the heatsinks on most LED fixtures at this wattage. The extra surface area lets the fixture dissipate the full 720W passively through natural convection alone. The result is a fixture engineered for the long haul, not just the first season. AC Infinity controller compatible This is the integration AU growers have been asking for. The Helios 720 EVO+ connects directly to AC Infinity controllers — including the Controller 69, 69 Pro, and AI Controller via the AC Infinity Type A adapter (sold separately). Plug it in and your lighting runs alongside your ventilation, humidity, and climate management on a single schedule through the AC Infinity app. For any grower already running an AC Infinity setup, this is the premium passive-cooled LED that drops straight into the ecosystem. Robust & precision-built design Compact, streamlined form factor. Adjustable rope hangers included. Fold-out installation design that significantly reduces setup time — unbox to switched on in minutes. Built for both home grow tents and commercial fit-outs. Coverage: Flowering : 1.5m x 1.5m Vegetative: 1.7m x 1.7m Specifications: Wattage: 720W Total diode count: 3,226 Per-diode load: 0.31W at full output Primary diodes: LM301H EVO white Secondary diodes: LM301B white (3000K + 5000K) Red diodes: OSRAM 660nm Far-red diodes: OSRAM 730nm Diode efficacy: 3.14 µmol/J (white), 3.8 µmol/J (red) Average PPFD (1.2m x 1.2m / 45cm hang): 1,162 µmol/m²/s Peak PPFD: 1,444 µmol/m²/s Cooling: Fully passive — oversized aluminium heatsinks Dimmer: Integrated analog, 0–100% Fixture dimensions: 115cm x 115cm Weight: 9.5kg Flowering coverage: 1.5m x 1.5m Vegetative coverage: 1.7m x 1.7m+ AC Infinity controller compatibility: Yes, via Type A adapter (sold separately) Lifespan rating: 50,000+ hours Warranty: 2 years Adjustable rope hangers: Included