Black Dog PhytoMAX-2 400 Watt LED Grow Light Fixture

Black Dog PhytoMAX-2 400 Watt LED Grow Light Fixture

SKU #: PM-2-400
Black Dog Brand Product

Commercial Grower? Get Volume Pricing.

Availability: In stock

Lead time: Ships in 1-3 Days

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  • Coverage Area
    Veg: 5.25' x 5.25'; Flower: 4.25' x 4.25'
  • Exact Watts
    420 Watts
  • LED Light Spectrum
    Full Spectrum
  • Voltage
    120/240 Volt
  • Est. Electricity Cost /mo
  • Warranty
    5 Years

At 420 actual watts and 641 ╬╝Mol/s total photon flux, the patent-pending PhytoMAX-2 400 LED grow lights are perfect for smaller grows where it's important to save energy and space without sacrificing light quality or intensity.

Free pair of ratchet hangers included with every fixture!

PhytoMAX-2 series are engineered to deliver the most powerful and reliable, truly full-spectrum (365-750nm, UV to NIR) LED plant grow lights! The PhytoMAX-2 400 uses only the highest-quality, latest-technology, top-bin LEDs to deliver Black Dog LED's proprietary full-cycle Phyto-Genesis Spectrum evenly over the entire footprint, with unprecedented PAR levels, canopy penetration and yields!

One thing can be said about all great products from the beginning of time, they evolve to be better. Black Dog LED knows this to be true, and that is why the set out to create the best LED grow light on the market. After years of research and testing they were able to incorporate the newest advances like their Phyto-Genesis Spectrum which has outperformed HPS, MH, CMH (LEC), induction, fluorescent, and "white" LEDs in equal wattage tests. Read below for more information.

Fast & Proven ROI! With a 6-12 month average return on investment, PhytoMAX is the best value per watt of any commercial LED grow light. Assuming a harvest every 10 weeks, the Black Dog LED light will pay off the cost difference between it and an old-fashioned HID light in less than 5 months. This is even faster than through increased yield alone! And, when you combine both quality and yield, Black Dog LED lights become much more affordable than traditional HIDs.

Not only does Black Dog LED have the highest PAR values, largest footprints, and most reliable LED grow lights available in the grow light industry, but all Black Dog LED lights (including the PhytoMAX Series) come with an industry-leaing, 5 year warranty!

Why Choose Black Dog LED?

Exclusive Full Cycle Phyto-Genesis Spectrum:

  • Black Dog LED features one ideal spectrum for both the vegetative and flowering phases which eliminates growth stalling also know as shock that is associated with changing the spectrum from MH to HPS (Veg to Flower). By using the same spectrum for vegetative and flowering cycles, Black Dog eliminates this shock, and have noticed a decrease in flower time (1-3 days) and a larger yield when the plant was grown for its entire life under one spectrum.
  • True full spectrum ranging from UVA to NIR (365-750nm) for the ultimate vegetative and flowering cycles.
  • Combines 15 different spectra to help grow healthier, higher-quality, more disease-resistant plants. Each included color targets specific phytoreceptors / photopigments in plants to maximize growth, robustness and quality.
  • Targets not only photosynthetic (chlorophyll / carotenoid) peaks but also increases essential oil production, flavor, antioxidants / vitamins and pigmentation with UV light.
  • Includes near infrared (NIR) light to boost photosynthetic efficiency through the Emerson Effect

Largest PAR Footprint & True Wattage:

  • The PhytoMAX-2 400 uses 168 high output 5 watt diodes for high light intensity that is very crucial for canopy penetration, which is what some LED manufacturers are lacking in their products.
  • The PAR footprint in the PhytoMAX is the most even coverage which eliminates leaf burn and hot spots.
  • 420 True Watts - 840 LED Watts - The PhytoMAX-2 400 will outperform any other equal-wattage LED grow light on the market!
  • Research has proven through the independent testing of a spectroradiometer (device designed to measure the spectral power distribution of a source) that the PhytoMAX has the largest footprint of any LED grow light.
  • Replaces 600 Watts of HID (HPS/MH) - Produces a superior yield with higher quality flowers all while saving on electricity, cooling and bulb replacement.

Long-Life, Commercial Grade Components with New & Improved Cooling System:

  • Largest heat sink in the industry for superior cooling and increased LED life over other LED brands even under extreme conditions of a grow room. PhytoMAX uses larger housings that provide better thermal dissipation to maximize the useful life of the light. Cheaper LED grow lights often skimp on heat management, causing their LED's to degrade and burn out faster.
  • Uses ultra quiet & reliable long-life fans.
  • The best active heat management in the industry, crucial to maximizing LED life and spectrum stability.

Check out the other Black Dog PhytoMAX-2 LED products below.

Black Dog PhytoMAX-2 200 Watt LED Grow Light Fixture - Veg Footprint 3.75' x 3.75' / Bloom Footprint 3' x 3'

Black Dog PhytoMAX-2 600 Watt LED Grow Light Fixture - Veg Footprint 6.5' x 6.5' / Bloom Footprint 5' x 5'

Black Dog PhytoMAX-2 800 Watt LED Grow Light Fixture - Veg Footprint 7.5' x 7.5' / Bloom Footprint 6' x 6'

Black Dog PhytoMAX-2 1000 Watt LED Grow Light Fixture - Veg Footprint 8' x 8' / Bloom Footprint 6.5' x 6.5'

PhytoMAX-2 400 Specs

Flowering Footprint3' x 3'
Vegatative Footprint5.25' x 5.25'
True Wattage420W
LED Wattage840W
Number of LEDs168
Amp Draw3.5A~1.8A (@ 120/240V)
VoltageAC 100V~250V
Work Frequency50~60 Hz
Operation Temperature Range-4~104F
Cord Length8 ft.
Product Dimensions15.75" x 15.75" x 5"
Weight24lb (10.9kg)
Shipping Size24" x 24" x 12"
Shipping Weight (lb.)27.0000
Tech Specs


BrandBlack Dog
Weight (lb.)24
Prop 65No
Length (in.)24
Width (in.)24
Height (in.)12
Warranty5 Years
Lead TimeShips in 1-3 Days
UL ListedYes
Lighting TypeLED
LED Light SpectrumFull Spectrum
LED Fixture TypePanel
Est. Electricity Cost /mo$18.14
Exact Watts420 Watts
HID Equivalent600 Watts
Coverage AreaVeg: 5.25' x 5.25'; Flower: 4.25' x 4.25'
Suggested Hanging HeightVeg: 38'' ; Bloom: 30''
LED Diode Type168 x 5w Diodes
Daisy ChainNo
Voltage120/240 Volt
Amps3.5A @ 120V ; 1.8A @ 240V
Frequency50/60 Hz
Power Cord(s) Included120 Volt
Power Cord Length8 ft.

Customer Reviews 3 item(s)

Switched from kind LED lights to black dog much happier with the black dog lights
So far so good and my girls are looking good , I would definitely recommend the black dog LED lights and the Smart pots
Worth it
Switch over to this light in mid veg and my girls exploded with growth!
I'm 3 weeks into flower now and my girl are setting tight buds.
Would buy again.
Great product
No complaints. Would purchase again.

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