Black Dog LED PhytoMAX-4 8S 500W Commercial LED Grow Light | High-Intensity Series

Key Specs: 500W | 2.14 µmol/J PBAR | 1,062 PBAR µmol/s | 1,705 BTU/hr | 26 lbs | 5-Year Warranty

Kill Variance. Print Yield.

Every cycle your facility runs on legacy HPS infrastructure, the variance tax compounds silently. Lamp lumen depreciation begins at first strike and never reverses. Ballast-driven heat loads force HVAC systems to compensate for thermal output that contributes nothing to photosynthesis. Manual control dead zones — the hours between scheduled checks when no one is watching the canopy — accumulate into measurable yield inconsistency across benches, rooms, and harvest cycles. The enemy is not a single failure point; it is a system of passive degradation that makes every harvest slightly different from the last, and never in your favor.

After deployment, the facility operates on a different logic. Every fixture in the array delivers the same photon flux at the same spectral distribution on day one and on day 75,000 of rated operation. Scheduling runs through a 0–10V control architecture that executes dim-to-off sequences without manual intervention. Cooling loads drop 40–60% compared to HPS equivalents, freeing HVAC capacity for environmental precision rather than thermal damage control. Canopy density becomes a documented output, not a variable. Harvest weight per square foot becomes a number you can plan around.

The mechanism behind that outcome is a 224-diode array sourced from Seoul and Osram, operating at 500 watts across the Phyto-Genesis Spectrum® (350–750 nm) — a Beyond PAR™ spectral platform that includes 3% UV content for secondary metabolite expression and near-infrared for Emerson Effect activation. Photon flux output reaches 1,062 PBAR µmol/s at 2.14 µmol/J PBAR efficacy, delivered through glass lenses rated at greater than 99.5% transmissivity. Redundant active cooling fans and oversized heatsinks maintain thermal stability without passive failure risk, and an automatic over-temperature shut-off provides a hard safety floor. The 0–10V dimming interface supports 15%–100% output range with dim-to-off capability, enabling full integration with commercial environmental controllers. Power factor is 0.99 across a 100–277V input range (8SC) or 100–250V (8SP), with 94% efficient modular LED drivers. In practical terms, the PhytoMAX-4 8S delivers 1,062 PBAR µmol/s at 2.14 µmol/J efficacy from a 15" x 15" x 4.5" fixture drawing 500 watts and dissipating 1,705 BTU/hr.

Where This Belongs (and Doesn't)

Not recommended for circuits under ~4.17A @120V or ~2.08A @240V per fixture, or unsealed rooms lacking HVAC capacity for expected thermal load.

This fixture requires a dedicated 20A circuit minimum at 120V or appropriate breaker sizing for 208–277V three-phase installations. HVAC capacity must be sized to manage 1,705 BTU/hr per unit at full output. Verify electrical infrastructure before ordering.

Infrastructure Note: The 8SC variant (SKU BD001-0110) features a locking, water-tight power cord rated for 100–277V and is suitable for sealed room and greenhouse-adjacent installations. The 8SP variant (SKU BD001-0103) uses a standard IEC power cord rated for 100–250V and is explicitly not recommended for greenhouse use. Confirm variant selection against your facility's electrical and environmental specifications before purchase.

How It Works

The PhytoMAX-4 8S is built around a 224-diode array drawing from eight distinct color and wavelength channels sourced from Seoul Semiconductor and Osram — two of the highest-specification LED suppliers in commercial horticulture. This multi-channel architecture is what defines the Phyto-Genesis Spectrum® (Beyond PAR™), a spectral platform spanning 350–750 nm that extends meaningfully beyond the 400–700 nm PAR window used as the baseline for conventional fixture comparisons. The 3% UV content within that range drives secondary metabolite expression — including cannabinoid and terpene accumulation — with lab-tested results showing a 39% increase in cannabinoid content compared to non-UV-inclusive lighting platforms. Near-infrared output activates the Emerson Effect, extending photosynthetic efficiency at the far-red boundary of the spectrum.

Photon delivery is managed through glass lenses rated at greater than 99.5% transmissivity, ensuring that diode output reaches the canopy with minimal optical loss. Thermal management is handled by redundant active cooling fans paired with oversized heatsinks — a dual-path system that eliminates the single-point failure risk of passive-only thermal designs. An automatic over-temperature shut-off provides a hard operational ceiling, protecting both the fixture and the crop in the event of ambient temperature excursion. The 94% efficient modular LED drivers maintain a 0.99 power factor across the full input voltage range, minimizing reactive power draw on facility electrical infrastructure.

Control integration operates via a 0–10V signal interface supporting 15%–100% dimming range with full dim-to-off capability, enabling the fixture to participate in automated scheduling, sunrise/sunset ramping, and multi-zone control architectures without manual intervention. The 8-foot cord length provides installation flexibility in standard commercial racking configurations, and the 15" x 15" x 4.5" form factor at 26 lbs is compatible with standard commercial grow room hanging hardware. In practical terms, the PhytoMAX-4 8S delivers 1,062 PBAR µmol/s across the Phyto-Genesis Spectrum® (350–750 nm) at 2.14 µmol/J PBAR efficacy, drawing 500 watts and dissipating 1,705 BTU/hr from a fixture weighing 26 lbs.

System Integration

To operate this platform at peak efficiency, verify your ecosystem matches these requirements:

• Environmental Controller: 0–10V signal output required for dimming integration. Compatible with standard commercial grow room controllers supporting 15%–100% range and dim-to-off scheduling. Confirm controller output specifications before deployment.
• Mounting Hardware: Fixture weighs 26 lbs. Use commercial-grade adjustable rope ratchets or rigid hanging hardware rated for minimum 52 lbs (2x safety factor) per fixture. Verify structural ceiling load capacity for full array weight.
• Electrical Infrastructure: 8SC variant requires 100–277V supply; 8SP requires 100–250V. Size circuit breakers and wire gauge for 500W continuous draw per fixture with appropriate NEC derating for continuous loads. Consult a licensed electrician for multi-fixture circuit planning.
• HVAC Capacity: Each fixture dissipates 1,705 BTU/hr at full output. Size cooling capacity for total fleet BTU load plus ambient gains. Black Dog LED reports 40–60% reduction in cooling costs versus HPS equivalents — recalculate HVAC requirements if transitioning from HPS.
• Ambient Temperature: Manufacturer recommends 85°F as the optimal ambient setpoint for Leaf Surface Temperature (LST) management. Facility HVAC should be capable of maintaining this setpoint under full fixture load.

Facility Integration Data

The following ROI reference and comparison data are provided to support capital planning and infrastructure decision-making for multi-unit deployments of the PhytoMAX-4 8S 500W.

Operator Field Note

• Structural Load: Each PhytoMAX-4 8S weighs 26 lbs. For multi-fixture arrays, calculate total ceiling or racking load before installation. Use hardware rated to at least double the fixture weight per mount point.
• Electrical Draw: 500W continuous per fixture. At 120V, this draws approximately 4.2A; at 240V, approximately 2.1A. Apply NEC 80% continuous load derating when sizing circuits — do not exceed 16A per 20A breaker for 120V installations. Consult a licensed electrician for multi-fixture runs.
• UV Exposure Warning: The Phyto-Genesis Spectrum® includes 3% UV output (350–400 nm range). Do not view the fixture directly when operating. Use UV-blocking eyewear rated for 350–400 nm when working in the room with fixtures at full output. Limit unprotected skin exposure during extended maintenance periods.
• Thermal Setpoint: Manufacturer recommends 85°F ambient as the optimal Leaf Surface Temperature (LST) setpoint. Deviating significantly below this setpoint may reduce photosynthetic efficiency; exceeding it without adequate airflow risks heat stress. Calibrate HVAC control loops to this target before first production cycle.
• Variant Cord Compatibility: The 8SC variant uses a locking, water-tight cord (100–277V). The 8SP uses a standard IEC cord (100–250V). Confirm outlet type and voltage range match your selected variant before installation. Mismatched cord types cannot be field-swapped.
• Over-Temperature Protection: The fixture includes automatic over-temperature shut-off. If a unit shuts off unexpectedly, do not immediately restart. Allow the fixture to cool, verify ambient temperature and airflow, and identify the thermal cause before resuming operation.

Shipping & Logistics

• Origin: Black Dog LED PhytoMAX-4 8S fixtures are designed and assembled in Colorado, USA. Units ship from authorized distribution points within the contiguous United States.
• Processing: Orders are processed within 1–2 business days of confirmed payment. Commercial multi-unit orders may require additional lead time — contact Cannafull Spectrum Solutions for fleet order scheduling.
• Damage Reporting: Inspect all shipments within 48 hours of delivery. Document any freight damage with photographs before moving or unpacking the fixture. Report damage to Cannafull Spectrum Solutions within 48 hours at (888) 378-0017 or sales@cannafullspec.com. Claims submitted after 48 hours may not be eligible for freight damage coverage.
• Returns: Returns are accepted within 30 days of delivery. A Return Authorization (RA) number is required before any unit is returned. Contact (888) 378-0017 or sales@cannafullspec.com to initiate. Units must be in original condition and packaging.
• Restocking Fee: Returns of non-defective items are subject to a restocking fee of up to 25% per our Return Policy. Review full terms at cannafullspec.com/pages/return-policy before ordering.

Questions? (888) 378-0017 or sales@cannafullspec.com

What's in the Box

• Black Dog LED PhytoMAX-4 8S 500W LED Grow Light (8SC or 8SP variant per order)
• 8-foot power cord — locking, water-tight (8SC) or IEC (8SP)
• Manufacturer documentation and warranty registration information

Note: Box contents are based on available manufacturer data. Verify complete contents upon receipt. Contact Cannafull Spectrum Solutions at (888) 378-0017 if any components are missing or damaged.

Regional Compliance & Deployment Notes

Commonly deployed in sealed commercial cultivation facilities across the United States. Installation, HVAC sizing, and electrical requirements vary by jurisdiction; always verify with local code.