Black Dog LED PhytoMAX-2 400 LED Grow Light

Regular price $1,349.00 Sale price $1,099.00


FREE with this Grow Light:
Heavy Duty Ratchet Hangers! (Worth $19.99):

Best For: Hobbyist, Commercial, Medium Space, Full Cycle


 Special Features

  • Large footprint 4.25 x 4.25ft (Flower), 5.25 x 5.25ft (Veg)
  • Replaces 600 Watt HPS
  • Full spectrum from Vegetative to Flowering
  • Fast, Proven Return on Investment
  • 70,000+ hrs lifespan

10 Reasons to Buy This Grow Light from Us


Once you grow with Black Dog PhytoMAX-2 commercial grow lights, you'll understand why people say HID is a thing of the past! This is one of the most powerful 400 Watt LED Grow Lights available.

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! 

More efficient and powerful than any 600W HPS

  • PhytoMAX-2 400 LED grow lights better penetrate dense canopies to produce a superior yield with higher quality flowers and more trichomes
  • Increases yield over a 600W HPS while using 35% less electricity
  • Saves on electrical, cooling, reflector and bulb replacement costs

168 High-Output 5-watt LEDs

  • Every top-bin LED is selected from the industry leader for the particular wavelength, including Cree, Osram, etc.
  • With glass lenses for durability and cleanability
  • High light intensity and energetic spectrum, crucial for canopy penetration to nourish lower leaves and flowers
  • Even, edge-to-edge coverage eliminates leaf burn and hot spots

420 True Watts - 840 LED Watts

Large Coverage Footprint

  • Up to 4.25’ x 4.25’ (18 sq ft) / 1.3m x 1.3m (1.7 sq m) of flowering footprint coverage!
  • Proven by independent spectroradiometer testing

Phyto-Genesis Spectrum®

  • The most efficient spectrum for growing plants, based on over 6 years of research and testing, outperforming HPS, MH, CMH (LEC), induction, fluorescent, and "white", so-called "full-spectrum" LEDs in equal wattage tests
  • One ideal spectrum for both vegetative and flowering stages eliminates stalling associated with spectrum changes such as switching from MH to HPS
  • True full spectrum ranging from UVA to NIR (365-750nm) goes Beyond PAR™ for ultimate flowering and vegetative plant cycles
  • Appears white to human eyes, allowing easy determination of plant health
  • Targets not only photosynthetic (chlorophyll / carotenoid) peaks but also:
    • Increases THC, CBD, terpenes, flavonoids, antioxidants / vitamins and pigmentation with UV light
    • Includes near infrared (NIR) light to boost photosynthetic efficiency through the Emerson Effect
    • Decreases internodal spacing to direct more of your plants' energy to flowers and leaves, instead of stems

Commercial Grade LED Grow Lights

  • ETL certified to UL safety standards
  • Unique no-glass design delivers up to 8% more light to your plants
  • The best active heat management in the industry, crucial to maximizing LED efficiency, life, and spectrum stability
  • Largest heat sink among commercial LED grow lights for superior cooling and increased LED life
  • Ultra quiet, long-life fans: 70,000+ hour rated lifespan

Fast, Proven ROI

  • With a 6-12 month average return on investment, PhytoMAX-2 400 LED grow lights deliver higher yields with 35% less electricity than a 600W HPS

Contains no Highly Toxic Mercury

  • Unlike all HID (HPS, MH, CMH / LEC) and fluorescent / induction bulbs
  • No hazardous waste disposal fees

Metal adjustable ratcheting 8-foot2.4-meter light hangers

Industry-Leading 5 Year Warranty

Black Dog PhytoMAX-2 400 | Shop all Black Dog Lights

Dimensions: 15.75" x 15.75" x 5.0"

Product Weight: 24lb

True Wattage: 420W

LED Wattage: 840W

Number of LEDs: 168 

Max. Flowering Footprint: 4.25’ x 4.25’ (18 sq ft)

Max. Vegetative Footprint: 5.25’ x 5.25’ (27.5 sq ft)

Voltage: AC 100V – 250V 

Amp Draw: 3.5A – 1.8A (@ 120/240v)

Work Frequency: 50 – 60 Hz

Power Factor: > 0.98

Operation Temperature Range: -4 –104 °F

BTU: 1432

Expected Fan Life: 70,000 hrs

Cord Length: 8 ft

Certifications: CE, ETL FCC, RoHS

Items over $100 ship for free to 48 cont. U.S States.

BLACK DOG Lights ship for free to Canada (excluding the Yukon, Northwest Territory and Nunavut).

All products are delivered with discrete packaging.

We ship internationally - please see our full Shipping + Returns Policy for details.

For any questions, please contact us here. We're happy to help!

Manufacturer’s Warranty: 5 years

Returns: 90 days