Black Dog PhytoMax-2 400 Watt LED Grow Light



The Black Dog Phytomax-2 400 LED provides an energy-efficient, full-spectrum lighting solution for commercial cultivators and professional home growers. Each Phytomax-2 400 LED fixture is capable of providing complete flowing-stage coverage for a 4.25' X 4.25' growing space (compare to 600w HPS) with 168 top-bin 5-watt chips, 420 input watts, and 641 µMol/s total photon flux. With the proprietary Phyto-Genesis Spectrum, Black Dog Phytomax-2 400 commercial LED grow lights are true full-spectrum LED's that can be used for full-cycle plant growth. The Phytomax-2 400 LED fixture comes complete and ready to install with 8' power cord and a pair of Black Dog ratcheting grow light hangers. Features:

  • Complete commercial grade LED grow light can be used full-cycle, vegetative growth through flowering and finish.
  • Light Specs: Phyto-Genesis Spectrum®, 5.25' - 4.25' veg/flower footprint.
  • Power Specs: 420w, 3.5A @120v, 1.8A @240v

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Black Dog Phytomax-2 400 Watt LED Grow Light

At 420 actual watts and 641 μMol/s total photon flux, the patent-pending PhytoMAX-2 400 LED grow lights are compact and powerful, outperforming 600W HPS bulbs. With PhytoMAX-2 we have delivered the most powerful and reliable, truly full-spectrum (365-750nm, UV to NIR) LED grow lights for indoor plants! The PhytoMAX-2 400 uses only the highest-quality, latest-technology, top-bin LEDs to deliver Black Dog Grow Light’s proprietary full-cycle Phyto-Genesis Spectrum® evenly over the entire footprint, with unprecedented PAR levels, canopy penetration, and yields!

All Black Dog LED’s ship FAST & FREE when you buy from HTG Supply!

Black Dog Phytomax-2 400 Physical Specs
Max. Flowering Footprint 4.25′ x 4.25′
Max. Vegetative Footprint 5.25′ x 5.25′
Shipping Size 24″ x 24″ x 12″
Product Dimensions 15.75″ x 15.75″ x 5″
Shipping Weight 27.0 lbs
Weight 24lb (10.9kg)
Certifications ETL, CE, FCC, RoHS
Mean Time Between Failure > 50,000 hours
Number of LEDs 168
BTU 1432
Fans Expected Life 70,000 hours
Cord Length 8 feet
Spectrum Phyto-Genesis Spectrum


Black Dog Phytomax-2 400 Power Specs
True Wattage 420w
LED Wattage 840w
Amp Draw 3.5A~1.8A (@ 120/240v)
Voltage AC 100V~250V
Work Frequency 50~60 Hz
Power Factor 0.98
Operation Temperature Range -4~104 °F


Weight 27 lbs

Product Category

Grow Lights


Chip Type

Spectrum Type

Fixture Configuration


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