About PHYTOMAX-2 400 LED Grow Light
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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
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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
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Large Coverage Footprint
- Up to 1.3 X 1.3 meters (1.7 square meters!) of flowering footprint coverage!
- Proven by independent spectroradiometer testing
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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
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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
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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
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Contains no Highly Toxic Mercury
- Unlike all HID (HPS, MH, CMH / LEC) and fluorescent / induction bulbs
- No hazardous waste disposal fees
- Metal adjustable ratcheting 2.4-meter light hangers
- Industry-Leading 5 Year Warranty
Once you grow with PhytoMAX-2 commercial grow lights, you'll understand why people say HID is a thing of the past!

Footprint | Area (cm) |
Average PPFD* (μMol/m2/s) |
Hanging Height (cm) |
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Max. Recommended Vegetative | 130 x 130 | 216 | 97 |
Max. Recommended Flower | 130 x 130 | 327 | 77 |
Medium Recommended Flower** | 95 x 95 | 612 | 54 |
Smallest Recommended Flower** | 75 x 75 | 982 | 46 |
* Average PPFD measurements are over the entire footprint, edge-to-edge and corner-to-corner, based on reflective surroundings or adjacent lights.
** When growing in an area smaller than the Medium Recommended Flower Footprint, CO2 supplementation is generally required to make full use of the additional light.
The Phyto-Genesis Spectrum®:
For more in-depth information on PhytoMAX-2 lights, check out the PhytoMAX-2 Knowledge Center.
PhytoMAX-2 400 LED Grow Lights Specifications
Max. Flowering Footprint | 1.3 x 1.3 meters |
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Max. Vegetative Footprint | 1.6 x 1.6 meters |
Shipping Size | 61 x 61 x 30 cm |
Product Dimensions | 40 x 40 x 11 cm |
Shipping Weight (lb.) | 27.0000 |
Weight | 10.9kg (24lb.) |
True Wattage | 420w |
LED Wattage | 840w |
Certifications | ETL, CE, FCC, RoHS |
Mean Time Between Failure | > 50,000 hours |
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Number of LEDs | 168 |
Amp Draw | 1.8A (@ 230V) |
Cord Length | 2.4 meters |
Voltage | AC 100V~250V |
Work Frequency | 50~60 Hz |
Power Factor | > 0.98 |
Operation Temperature Range | -20~40 °C |
BTU | 1432 |
Fans Expected Life | 70,000 hours |