Black Dog Led, PhytoMax 200 / 400 / 600 / 800 / 1000

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Black Dog Led PhytoMax 200 / 400 / 600 / 800 / 1000.

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Black Dog Led, PhytoMax 200 / 400 / 600 / 800 / 1000

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ETLCEFCCRoHS

Made in Colorado, USA

Le Spectre parfait, à découvrir ici.

Le phytotomax 2 200 Remplace n'importe quel HPS 400w avec des rendements plus élevés et des résultats de meilleure qualité, le pm 400 remplace ou hps 600w, le pm 600 remplace une hps 800w, le pm 800 remplace une hps 1000w, et le pm 1000 remplace une hps 1200w

    Les lampes de culture PhytoMAX-2 LED pénètrent mieux les feuillages denses pour produire un rendement supérieur avec des fleurs de meilleure qualité et plus de trichomes
    Augmente le rendement de 400W HPS tout en utilisant la moitié de l'électricité!
    Economise sur les coûts d'électricité, de refroidissement, de réflecteur et de remplacement des ampoules

Phyto-Genesis Spectrum®

    Le spectre le plus efficace pour les plantes en croissance, basé sur plus de 6 années de recherche et d'essais, surpassant les LED HPS, MH, CMH (LEC), induction, fluorescentes et "blanches", dites "full-spectrum"
    Un spectre idéal pour les stades végétatifs et de floraison élimine le décrochage associé aux changements de spectre tels que le passage de MH à HPS
    Un véritable spectre complet allant de UVA à NIR (365-750nm) va à Beyond PAR ™ pour des cycles végétaux et floraux ultimes
    Apparaît blanc aux yeux humains, permettant une détermination facile de la santé des plantes
    Cible non seulement les pics photosynthétiques (chlorophylle / caroténoïde) mais aussi:
        Augmente le THC, le CBD, les terpènes, les flavonoïdes, les antioxydants / vitamines et la pigmentation avec la lumière UV
        Inclut une lumière proche infrarouge (NIR) pour augmenter l'efficacité photosynthétique grâce à l'effet Emerson
        Diminue l'espacement internodal pour diriger plus d'énergie de vos plantes vers les fleurs et les feuilles, plutôt que vers les tiges

LED de qualité commerciale élèvent des lumières
        ETL certifié selon les normes de sécurité UL
        La conception sans verre unique offre jusqu'à 8% de lumière en plus à vos plantes
        La meilleure gestion active de la chaleur dans l'industrie, essentielle pour maximiser l'efficacité, la durée de vie et la stabilité du spectre des LED
        Le plus grand dissipateur de chaleur parmi les lampes LED commerciales pour un refroidissement supérieur et une durée de vie accrue des LED
        Ventilateurs silencieux et longue durée de vie: durée de vie nominale de 70 000 heures et plus
    Ne contient pas de mercure hautement toxique
        Contrairement à toutes les ampoules HID (HPS, MH, CMH / LEC) et fluorescentes / à induction
        Pas de frais d'élimination des déchets dangereux
    Cliquet réglable à cliquet métallique de 8 pieds
    Une garantie de 5 ans leader de l'industrie sur ces lampes de culture en ligne

Une fois que vous aurez grandi avec les lampes de culture commerciales PhytoMAX-2, vous comprendrez pourquoi les gens disent que HID appartient au passé!

  • All Highest-Quality, High-Efficiency 5-watt LEDs
    • Every top-bin LED is selected from the industry leader for its particular wavelength, including Cree, Osram, etc.
    • Glass primary lenses ensure durability and cleanability while maximizing efficiency
    • 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
  • Commercial Grade
    • ETL certified to UL safety standards
    • The best active heat management in the industry, crucial to maximizing LED life, efficiency and spectrum stability
    • Largest heat sink among LED grow lights for superior cooling and increased LED life
    • Ultra efficient, long-life fans: 70,000+ hour rated lifespan
  • Made in the U.S.A
    • Designed and built in Colorado
  • Phyto-Genesis Spectrum™
    • The most efficient spectrum for growing plants based on over 6 years of research and testing, outperforming HPS, MH, CMH, Induction and Fluorescent in equal wattage tests
    • One ideal spectrum for both Veg and Flowering stages
      • Does not stall plant growth like switching from MH to HPS does
      • Eliminates the need for separate vegetative and flowering lights
    • Decreases internodal spacing to encourage flower and leaf growth, rather than stems
  • Beyond PAR™ - UV and IR LEDs
    • UV light maximizes trichome production and makes plants more resistant to pests and diseases
    • Our UV LEDs are laboratory proven to produce higher potency/active compounds (THC, CBD, terpenes, antioxidants/vitamins and flavonoids)
    • IR light increases photosynthetic efficiency (Emerson Effect)
  • Industry-Leading 5 Year Warranty
  • Water-Shedding Housing can be Mounted Flush to the Ceiling
  • Largest Lighting Footprints in the Industry!
    • Maintaining even coverage across the entire footprint (no hot spots)
  • True 1050 Watts / 1602 μMol/s total downward photon flux!
    • The PhytoMAX-2 1000 is the most powerful indoor LED grow light on the market
  • Fast, Proven ROI
    • With a 6-12 month average return on investment, PhytoMAX-2 is the best value per watt of any commercial indoor LED grow light.
Imperial     Metric
Max. Flowering Footprint
PM-2 1000
200 cm
PM-2 800
185 cm
PM-2 600
155 cm
PM-2 400
130 cm
PM-2 200
90 cm
Max. Vegetative Footprint
PM-2 1000
250 cm
PM-2 800
230 cm
PM-2 600
200 cm
PM-2 400
160 cm
PM-2 200
115 cm

https://www.blackdogled.com/gallery-commercial

Recommendations for Proper Use

The footprint recommendations given here are created for photoperiod-sensitive Cannabis or other high-light plants in a square growing area. If your situation is any different (larger, smaller, different crop, etc.) you may need a different footprint size and hanging height.

For a complete guide to footprint issues, see our guide to the ideal LED grow light setup.

Imperial     Metric

Light ModelMax. Recommended VegetativeMax. Recommended FlowerMedium Recommended Flower**Smallest Recommended Flower**
Area
(cm)
Average PPFD*
(μMol/m2/s)
H.H.
(cm)
Area
(cm)
Average PPFD*
(μMol/m2/s)
H.H.
(cm)
Area
(cm)
Average PPFD*
(μMol/m2/s)
H.H.
(cm)
Area
(cm)
Average PPFD*
(μMol/m2/s)
H.H.
(cm)
PhytoMAX-2 200115 x 1152096890 x 903415365 x 656534155 x 5591334
PhytoMAX-2 400160 x 16021697130 x 1303277795 x 956125475 x 7598246
PhytoMAX-2 600200 x 200207119155 x 15534593115 x 1156276995 x 9591856
PhytoMAX-2 800230 x 230209137185 x 185323110135 x 13560682110 x 11091363
PhytoMAX-2 1000250 x 250221150200 x 200345121150 x 15061492120 x 12095976


* 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.

Vegetative vs. Flower
The Phyto-Genesis Spectrum® in each PhytoMAX-2 light is ideal for both vegetative and flowering growth; only the largest recommended footprint size differs between stages, due to the different daily periods of illumination. You can use the flowering footprint sizes for vegetative growth, although you may need to increase fertilizer and CO2 to make full use of the extra light.
Maximum Recommended Footprint Size
This is as much as we recommend stretching our LED growing lights for photoperiod-sensitive Cannabis, but running them over a smaller footprint (to a point) will give a higher yield per square foot. Other crops (including auto-flowering Cannabis ruderalis strains) may have different ideal footprints.
Hanging Height (H.H.)
This is the recommended height of the bottom of your PhytoMAX-2 light, measured above the average top of the plant canopy. The higher you hang the light, the bigger (and weaker) its footprint will be; hanging it closer makes the light more intense but also decreases the footprint.

PhytoMAX-2 Growing Tips

There are two important differences when growing with PhytoMAX-2 LEDs:

  • We recommend keeping your growing area 5 °C warmer than you would with other lights (29 °C for Cannabis) to maximize yield.
  • If not growing hydroponically, we recommend using fabric pots with our lights; they allow soil to dry out more quickly since our lights aren't heating it as much. This allows faster nutrient cycling and encourages a better root system.
  • If you are going to burn sulfur in your growing area, remove the lights from the area, or turn lights off and seal in plastic during the sulfur treatment. Failure to do so will void your warranty!

For a complete guide, see our article on maximizing yield with LED grow lights and our expert growing tips for Cannabis.

Cleaning and Maintenance

If your light requires cleaning:

  • Turn off the light and disconnect the power cord.
  • Spray water or a mild glass cleaner onto a soft lint-free towel (NOT onto the LEDs on the bottom of the light!)
  • Gently blot the LEDs with the moist towel until clean. DO NOT RUB THE LEDs!
  • Allow to air-dry, then plug your light back in and turn it on.
  • NEVER spray any liquids directly on or around the LEDs!

If you are going to burn sulfur in your growing area, remove the lights from the area, or turn lights off and seal in plastic during the sulfur treatment. Failure to do so will void your warranty!

Issues and Questions

Black Dog LED wants you to be satisfied with your PhytoMAX-2 light!

Please note that our LED growing lights contain infrared and ultraviolet diodes that are outside of humans' visual range, so it is normal for some of the LEDs to appear dim or unlit.

If you have any questions or issues with your lights' function, please contact Black Dog LED, not the store it was purchased from. You can:

Specifications

Imperial     Metric

Common to All PhytoMAX-2 Lights:

Acceptable voltage range100 - 250 volts AC
AC frequency range50 - 60 Hz
Operational temperature range-20 to 40 °C
SpectrumPhyto-Genesis Spectrum® covering 365-750nm, including UV and IR
Warranty5 Years
CertificationsETL, CE, FCC, RoHS
M.T.B.F> 50,000 hours
Power Factor> 0.98
Fans70,000 hour expected life

Model Specific

LightWattage (average)Total Fixture Photon Flux (μMol/s)# LEDsBTUsSize (LxWxH)
(cm)
Weight
(kg)
Amps (average)
300-800nmUV (<400nm)PAR (400-700nm)IR (>700nm)120V240V
PhytoMAX-2 10001050160273148547420358153 x 53 x 17248.84.4
PhytoMAX-2 800840128258118838336286453 x 53 x 1722.773.5
PhytoMAX-2 6006309614489128252214848 x 48 x 1315.45.32.6
PhytoMAX-2 4004206412959419168143240 x 40 x 1310.93.51.8
PhytoMAX-2 2002103201529798471631 x 31 x 136.41.80.9

Total flux numbers from integration sphere tests of the entire fixture. Note that total photon flux is the entire photon output of the light (PF / PPF, in μMol/s), and not the measurement at a particular point under the light (PFD / PPFD, in μMol/m2/s). When measured at a particular point, the PFD / PPFD can be much higher or lower than the total photon flux.

Footprint Coverage for Average PPFD

This table shows what footprint each model of light will cover to achieve a specific average photosynthetic photon flux density (PPFD). The PPFD is averaged every square centimeter over the entire footprint size given, edge-to-edge and corner-to-corner. For example, the PhytoMAX-2 200 provides an average of 100 μMol/m2/s (PPFD) over a 2.76 square meter area.

LightPPFD (μMol/m2/s) Average over Entire Footprint Area
1002003004005006007008009001000
PhytoMAX-2 2002.76 m2
(1.66 x 1.66 m)
1.38 m2
(1.18 x 1.18 m)
0.92 m2
(0.96 x 0.96 m)
0.69 m2
(0.83 x 0.83 m)
0.55 m2
(0.74 x 0.74 m)
0.46 m2
(0.68 x 0.68 m)
0.39 m2
(0.63 x 0.63 m)
0.35 m2
(0.59 x 0.59 m)
0.31 m2
(0.55 x 0.55 m)
0.28 m2
(0.53 x 0.53 m)
PhytoMAX-2 4005.53 m2
(2.35 x 2.35 m)
2.76 m2
(1.66 x 1.66 m)
1.84 m2
(1.36 x 1.36 m)
1.38 m2
(1.18 x 1.18 m)
1.11 m2
(1.05 x 1.05 m)
0.92 m2
(0.96 x 0.96 m)
0.79 m2
(0.89 x 0.89 m)
0.69 m2
(0.83 x 0.83 m)
0.61 m2
(0.78 x 0.78 m)
0.55 m2
(0.74 x 0.74 m)
PhytoMAX-2 6008.29 m2
(2.88 x 2.88 m)
4.14 m2
(2.04 x 2.04 m)
2.76 m2
(1.66 x 1.66 m)
2.07 m2
(1.44 x 1.44 m)
1.66 m2
(1.29 x 1.29 m)
1.38 m2
(1.18 x 1.18 m)
1.18 m2
(1.09 x 1.09 m)
1.04 m2
(1.02 x 1.02 m)
0.92 m2
(0.96 x 0.96 m)
0.83 m2
(0.91 x 0.91 m)
PhytoMAX-2 80011.05 m2
(3.32 x 3.32 m)
5.53 m2
(2.35 x 2.35 m)
3.68 m2
(1.92 x 1.92 m)
2.76 m2
(1.66 x 1.66 m)
2.21 m2
(1.49 x 1.49 m)
1.84 m2
(1.36 x 1.36 m)
1.58 m2
(1.26 x 1.26 m)
1.38 m2
(1.18 x 1.18 m)
1.23 m2
(1.11 x 1.11 m)
1.11 m2
(1.05 x 1.05 m)
PhytoMAX-2 100013.81 m2
(3.72 x 3.72 m)
6.91 m2
(2.63 x 2.63 m)
4.60 m2
(2.15 x 2.15 m)
3.45 m2
(1.86 x 1.86 m)
2.76 m2
(1.66 x 1.66 m)
2.30 m2
(1.52 x 1.52 m)
1.97 m2
(1.40 x 1.40 m)
1.73 m2
(1.31 x 1.31 m)
1.53 m2
(1.24 x 1.24 m)
1.38 m2
(1.18 x 1.18 m)

The footprint PAR coverage in this table assumes reasonably-reflective surroundings around the footprint; for adjacent lights the PPFD numbers or footprint coverage will actually be higher.

Transitioning Plants From Other Lights

When switching plants grown under other lights to PhytoMAX-2's Phyto-Genesis Spectrum®, some shock and/or stalling can occur, as with moving plants between any other different lighting situations. Our LED grow lights are very intense and contain UV light (unlike many grow lights), either of which can shock plants not used to such lighting.

To adapt plants to our lights with as little shock as possible, hang the light at twice the recommended hanging height to start. Each day for about a week you can lower the light by 15-20 cm until it is at the recommended hanging height and your plants have adapted.

When starting seeds under our lights it is fine to use the normal footprint and hanging height; when seeds germinate they adjust to the lighting conditions they first experience. Raising the hanging height of the light higher than normal during germination can lead to leggy, weak seedlings.

Determining the ideal LED grow light setup for your grow depends on a lot of variables:

  • Plant / crop:
    • Light demands
    • Photoperiod (day / night hours)
  • Growing area:
    • Size
    • Shape
  • Your goals:
    • Vegetative, flowering or both?
    • Economize vs. maximizing yield
    • Active growth vs. maintenance

By selecting the appropriate footprint coverage using our lights, you can achieve the ideal grow!

Plant Lighting Intensity and Duration

Different species of plants (and sometimes even different varieties or cultivars within species) require different amounts of light for ideal growth, and flowering plants often require more light while flowering and fruiting than during vegetative growth.

The total amount of light received by a plant each day is determined by both the intensity of the light and the duration of the illumination. For example, if you have a light running for 2 hours per day, it only takes 1 hour for a light that is twice as intense to create the same total amount of light.

To measure the total amount of light per day, the Daily Light Integral (DLI) counts the total number of photons per day in the PAR (Photosynthetic Active Radiation) range of 400-700nm. DLI is measured in units of mol·m-2·d-1 [moles of light (mol) per square meter (m-2) per day (d-1), where 1 mole of light is roughly 6×1023 photons].

For every plant there is a DLI range which will maximize growth and production; less than this range will result in poorer growth / yield or even no growth, and more DLI will be wasteful (costing more than the additional yield justifies), or even harmful to the plant. Determining this ideal DLI range is tricky as it not only depends on the plant type and growth stage, but can also vary with other factors in your growing environment such as temperature, humidity, fertilization / nutrient availability, CO2 supplementation, the exact lighting spectrum (including outside of the PAR range measured by DLI), and more. This deserves an entirely separate in-depth discussion, coming soon.

Complicating matters more, plants can be divided into 3 categories:

  1. Short-day plants flower when the night length is greater than their critical period; until then, they stay in a vegetative growth mode. Cannabis sativa, Cannabis indica, cotton and rice are examples of short-day plants.
  2. Long-day plants flower when the night length falls below their critical period. Peas, lettuce and carnations are examples of long-day plants.
  3. Day-neutral plants do not initiate flowering based on the night length, but instead on some other stimulus such as reaching a particular size or age, or period of cold or drought. Cannabis ruderalis ("auto-flowering" cannabis), peppers, tomatoes and cucumbers are examples of day-neutral plants.

Sometimes very similar plants fall into 2 or 3 of these categories, as is the case with Cannabis, strawberries and mulberries.

Note that some plants still require a dark period each day, even if they are day-neutral, short-day (vegetative stage), or long-day (flowering stage). For example, tomatoes grown under 24/7 light will get chlorotic leaves and grow poorly. Giving plants a 4-6 hour resting period each night is generally beneficial both to your crop and your wallet.

To the extent allowed by plants' night-length constraints, you can increase the DLI by keeping the light on longer each day, without having to increase light intensity. For short-day plants like Cannabis indica and C. sativa, it is particularly necessary to have high light intensity during the flowering stage, as the DLI cannot be increased by extending the daylight hours.

LED Grow Light Intensity and Coverage

Each model of our PhytoMAX lights uses 5W LEDs to create light. The average light output (intensity) per LED is the same; the larger models simply have more of them to create more light. All Black Dog LED lights are designed to spread the light as evenly as possible over the entire lighting footprint; the intensity of the light within the footprint and the size of the footprint are controlled by how high you hang the light above the plants.

Moving the light closer to the plants will decrease the size of the footprint but increase the intensity because you're spreading the same amount of light over a smaller area. Moving the light further from the plants increases the size of the footprint but decreases the intensity.

No matter what size light you're using, you can get an equivalent percentage increase in DLI by either shrinking the footprint area or increasing lights-on hours. For example, you can get a 25% increase in DLI by shrinking the covered footprint by 25% (e.g. from 2 square meters to 1.5 square meters), or by increasing the hours the light is on by 25% (e.g. from 12 hours to 15 hours).

Growing Area Shape

Our PhytoMAX lights have a square footprint area, but that doesn't mean you can't use them in rectangular growing areas. There are three options for covering non-square areas:

  1. Use a light big enough to cover the longest dimension:
    • For slightly-rectangular LED grow light coverage this can be the least-expensive option. Using reflective materials on especially the longer sides of your growing area will help to make use of all of the light in this setup. If your growing area's longest side is more than 1.5 times the length of the shorter side, you probably want to use option number 2 or 3 for better, more-economical results.
    Slightly Rectangular Footprint Coverage with a Large Light
    PhytoMAX 800
    150 cm
    120 cm

    Imperial     Metric

  2. Use multiple lights:
    • By hanging two or more lights side-by-side you can create a rectangular footprint. For example, two PhytoMAX 200's hung 76 cm apart (on center) will cover a 76 x 152 cm rectangular area, using our maximum recommended flowering footprint for photoperiod-sensitive Cannabis. In a partial combination with option #1 above, these same two lights could also cover a 76 x 120 cm area, a 60 x 150 cm area, or even a 60 x 120 cm area.
    Rectangular Footprint Coverage with Multiple Lights
    PhytoMAX 200
    PhytoMAX 200
    150 cm
    75 cm

    Imperial     Metric

  3. Use a light mover to "stretch" the footprint shape:
    • Hanging the light from a light mover will change the shape of the light's effective footprint. The actual footprint is still square, but by moving this square footprint back and forth in a line, it is effectively transformed into a rectangle. Often the cost of an appropriate larger light with a light mover is less than the cost of two smaller lights without a light mover, making it the most economical choice for many rectangular growing areas. Light movers have a lot of benefits and considerations, detailed below:
    Using a Light Mover to Cover a Rectangular Footprint
    PhytoMAX 800
    190 cm
    120 cm

    Imperial     Metric

LED Grow Lights on Light Movers

Light movers are beneficial for two reasons:

  1. Changing the effective shape of a light's footprint:
    • By moving a light back and forth in a line, light movers "stretch" the effective footprint of a light into a different shape, as long as you keep the effectively-covered footprint area the same. For example, a PhytoMAX 800 can normally cover a 150 x 150 cm area (2.25 square meters) when it isn't on a light mover, but moving it back and forth can make it cover a 120 x 190 cm area or a 90 x 245 cm area (both roughly 2.25 square meters), although each setup requires a different light hanging height above the plants. When on a light mover, the light should ideally be hung at the appropriate height to get a square footprint as wide as the shortest side of the effective rectangular footprint area. For example, to cover a 120 x 190 cm area, the PhytoMAX 800 hung from the light mover should be hung at the appropriate height for a 120 x 120 cm footprint (61 cm above the average height of the canopy). This square footprint is moved by the light mover to create the rectangular effective footprint.

    Imperial     Metric

    Using a Light Mover to Cover a Rectangular Footprint
    PhytoMAX 800
    190 cm
    120 cm
    Side View
    PhytoMAX 800
    Height:
    61 cm
  2. Increasing light distribution to raise yield
    • When a light is hung overhead in a static (un-moving) manner, plants will naturally orient their leaves to catch as much light as possible. This often results in upper leaves shading out the lower leaves and flowers of the same plant. To some extent this issue can be overcome by increasing the intensity of the light, but by simply moving the light back and forth and mimicking the sun's natural daily traversal of the sky, light can be more evenly and efficiently delivered to all leaves on the plant. We've seen 10-20% increases in yield when a light is on a light mover covering the same size area, even when the light isn't being moved very far.

      To some extent, hanging multiple un-moving lights provide many of the same benefits; having the light come from many angles helps to nourish more of the lower leaves. However, placing multiple-light setups on light movers will still increase light distribution and yield.

Considering how inexpensive light movers are to purchase initially, and how little electricity they take to run (typically less than 5W!), light movers are often the most economical way to squeeze extra yield out of a grow light.

Large Areas

When setting up larger growing areas, it is important to consider plant access. You'll need to be able to reach the plants to take care of them and even just to harvest them; we generally recommend setups with no more than a 120 cm reach to access any plant. This generally requires aisles in larger grows, unless the plants are on movable carts to allow on-demand creation of aisleways.

In general, the ideal setup for larger growing areas minimizes aisle space while still allowing easy access to all plants. This requires adjustment for the exact size and shape of the area, as well as the placement of doorways. The staff at Black Dog LED have decades of experience setting up larger growing operations and we're always happy to help with lighting setup design; simply contact us or call us at 720-420-1209!

Your Goals

The ideal LED grow light setup for your situation depends on what you want out of your grow, for example:

  1. Growth phase use: vegetative, flowering or both? If you want to use the growing area for only vegetative or flowering, you only need to consider the lighting intensity for that growth phase. When using the area for both phases of growth, it is best to design for the most light-demanding phase (usually flowering).
  2. Economize vs. maximizing yield: once the plants' minimum lighting requirements (DLI) have been met, increasing the DLI will increase yield. Up to a point, increasing the DLI by a certain percentage will increase yield by a "linear" equivalent percentage; for example increasing the DLI by 10% may increase yield by 8%, and increasing DLI by 20% would increase yield by 16%. When you start giving the plants as much DLI as they can handle, this yield return on increased intensity starts to fall off and is no longer linear; for example if you've got a very high DLI to begin with, increasing it by 10% may only give a 4% increase in yield. Past a certain point increasing the DLI will not increase yield at all, and may even hurt it if the plants are being harmed by too much light.

The Perfect LED Grow Light Setup

A configuration calculator is coming soon! For now, here are some basic recommendations, based on flowering daylength-sensitive Cannabis plants. Four different configurations are given for each of our PhytoMAX light models:

  1. Minimum: At this DLI configuration, we're sure you'll be happy with the results; plants will grow and flower vigorously with dense, high-quality flowers. Yes, you can go below this a bit (increase footprint size and hanging height) and still get decent results, but they won't be up to our standards.
  2. Medium: At this DLI configuration, we're sure you'll be thrilled with the results; quality may go up slightly and yield per square meter will go up.
  3. High: At this DLI configuration, you're still going to see an increased yield per square meter roughly equivalent to the increased DLI, although by "overdriving" the plants with so much light you may need to pay a lot more attention to your plants to ensure they're happy. Maintaining proper watering, fertilization, pruning and support becomes more critical as the DLI increases, so we would not recommend this level for beginning growers. Increasing DLI beyond this point will probably not result in a linear rise in yield, and the grams per watt yield will probably start to decrease, and costs go up.
  4. Extreme: At this DLI configuration, you're probably maximizing yield per square meter, but in terms of yield per watt of electricity used (grams per watt) you'd probably be better off spreading the light out over a larger area or more plants. We would not generally recommend raising DLI above this point as it is most likely going to be wasteful, although every growing situation is different, and unique growing techniques may make use of all this light!

Imperial     Metric

LightLight Amount (DLI) for Flowering Photoperiod-Sensitive Cannabis
MinimumMediumHighExtreme
FootprintHanging HeightFootprintHanging HeightFootprintHanging HeightFootprintHanging Height
PhytoMAX 1000168 x 168 cm (2.8 m2)81 cm137 x 137 cm (1.9 m2)66 cm122 x 122 cm (1.5 m2)61 cm114 x 114 cm (1.3 m2)56 cm
PhytoMAX 800152 x 152 cm (2.3 m2)74 cm122 x 122 cm (1.5 m2)61 cm107 x 107 cm (1.1 m2)51 cm100 x 100 cm (1 m2)48 cm
PhytoMAX 600130 x 130 cm (1.7 m2)64 cm107 x 107 cm (1.1 m2)51 cm91 x 91 cm (0.8 m2)43 cm84 x 84 cm (0.7 m2)41 cm
PhytoMAX 400107 x 107 cm (1.1 m2)51 cm91 x 91 cm (0.8 m2)43 cm76 x 76 cm (0.6 m2)36 cm69 x 69 cm (0.5 m2)33 cm
PhytoMAX 20076 x 76 cm (0.6 m2)36 cm61 x 61 cm (0.4 m2)30 cm53 x 53 cm (0.28 m2)26 cm52 x 52 cm (0.27 m2)<span class="m-met" style=

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