Light uniformity in your indoor grow and how to maximize cannabis crop yield

Regardless of the type of light installed, HPS, MH, LED or florescent, there are three variables to keep in mind when planning your lamp layouts.
Light uniformity in your indoor grow and how to maximize cannabis crop yield

Maximizing crop yield in large commercial cannabis grows requires a careful balance of lighting strategy. 

Regardless of the type of light installed, HPS, MH, LED or florescent, there are three variables to keep in mind when planning your lamp layouts.

Uniformity of light over the target canopy area. Intensity of light on the maturing canopy, and the photosynthetic spectrum of light the lamp produces.

We're fortunate at FGI because we visit hundreds of commercial grows every year. During our visits we're often invited to take measurements of these three variables. What we've learned is the growers who consistently produce the highest dry weight yields, with the most consistent potency are doing a great job managing their grow lighting. We know growers who achieve 4 lbs per lamp and we know growers who get by with 1.5 lbs per lamp. That is a dramatic difference in potential grower revenue. 

We've also found that lighting is frequently mismanaged. For example HPS lamps which are installed and eighteen months later are using the same bulbs. Or lamps hung too far apart which create gaps in PAR (photosynthetic light) output. We also frequently see lamps installed too high above the canopy which wastes light as it travels a greater distance to reach the target area. 

All of those mismanaged light strategies sacrifice yields because of issues with uniformity. Old HPS bulbs decline in photosynthetic light output. Lamps hung too far apart or too high (or for that matter too close) creates gaps over the target canopy which if not corrected costs the grower dry weight yield which could have been converted to sales. 

The easiest way to check uniformity is to use a handheld PAR meter and a tape measure to set an imaginary plane where the canopy will be growing at various stages.

We frequently see people taking PAR or PPF measurements only directly under the light. But it's the areas between a set of lamps that matters. The area between two or more lamps is called a crossover zone. Two light sources crossing over creates more PAR than one lamp alone. But two lights incorrectly spaced creates less PAR in the crossover area than either light is producing directly below the fixture. Fix that problem and you fix the yield problem.

Another way to plan for proper uniformity is to use programs like AGi32 which when used correctly will provide a PAR map across any target area and will correctly project crossover light levels.

At FGI we use AGi32 as a planning tool when we measure a grow room. We'll look at the light below the lamp and also to the sides where crossover issues occur.

We also use AGi32 to target the total PAR we want on target. We know from experience that mature cannabis plants need between 850-1100 micromoles of photosynthetic energy across the entire canopy. If we lose even six inches of PAR around the edges we've left yield on the table.

We can use tools like AGi32 and PAR meters like the Apogee MQ500 to validate uniformity and intensity. Then we can use tools like the Passport mobile spectrophotometer to measure spectrum.

When properly applied we know that a grower has a lighting layout that will maximize their cashflow cycle after cycle.  

 

 

 

Premium Quality For Growing

More Products

sale
FGI Lightlifter Raises And Lowers Multiple Grow Lights.
The FGI Lightlifter. A Universal Lift For Raising Grow Lights. 16' or 24' lengths. Made to order. from $ 1,495.00 $ 1,495.00
Take control of your PAR levels. And take advantage of the energy you are using to create it. Note: Our lifts are made to order in 3-5 weeks, depending on quantity. Give us a call to discuss your needs. Install services available for most locations.  Description Lightweight, heavy duty, universal light lifting solution for grow lights.  The FGI motorized light lift is a great tool for managing PAR on canopy. It can raise and lower lights 30 inches to give you an even distribution of brightness, making it perfect whether your plants are close or far away from the source! The universal mounting system allows any brand of lamps to be installed with ease too; so there's no need worry about getting wrong type equipment when trying new techniques at growing indoors. Mount at any distance from ceiling. Upper light lift rail holds twin pnumatic motors activated by an up/down switch. The lower rail holds your lights. Heavy duty steel cable connects the top and bottom rail on a set of pullys coordinated to pull the lower rail up and down.  The lower rail, when fully retracted (pulled all the way up) should be set to where you want the lights at finished canopy height. This would be the same height you'd choose if you did not use a light lift.  30" of travel allows you to drop the lights during the plant strecth phase to increase PAR levels you would otherwise lose by having your lights mounted in a fixed position. Wasted PAR, wasted energy cost. Grow lights lose 50% of their energy over distance. For example if you bought lights to produce 1200 umols/ms at finished canopy height, say 18". Each 12" further away will reduce PAR by 50%. At 24" from the light PAR will drop to 600 umols/ms. At 36" PAR will drop by 50% once again to 300 umols/ms which is less than what Veg plants require, not to mention early flowering plants.  The lightlift gives back wasted PAR and allows growers to concentrate the PPPFD they desire at all stages of growth. View Customer Installs on Youtube    Introducing the FGI Lightlifer     Seattle Demo Install    ** Due to the size and weight this item does not ship free ** Ships to USA and Canada only ** Shipping calculated at checkout.  Features: Standard lengths: 16' and 24" Standard Unit Weight: 98 and 120 lbs (not including lamps) Input voltage: 110V per section. Lamp mounting: Integrated quick release mounting for FGI's full line of Lightbars and Lightpanels. We can make Lifters for any brand of grow lights. Twin linear actuators raise and lower the array with the toggle switch Capacity: Up to 250 or 310 lbs Standard travel: Up to 30" up/down travel Safety: Handheld (or wall mounted) up/down switch for each lift.  Slow movement with upper limit and lower limit travel stops Secure universal light attachments using 1/4" cotter pins Install Notes: The FGI Lightlifter comes with pre-assembled top rails with pneumatic arms and steel aircraft cable. It ships in 8' sections with joining hardware to extend the final lift to 16'. The lower rails come pre-assembled and we provide sets of clevis cotter pins and rail insertion guides.  The lifts consist of twin upper and lower rails. The upper rail has four loops, one at each end, and allows for attachment to ceiling truss which we recommend be done with lengths of stainless steel threaded rod (not provided). The rod should be sized to allow the upper rail to be suspended at a height for the top limit of travel, or in other words the furthest you want the lights to be from the canopy. The lower rails on the lift hold the lights which have 30" of travel when fully extended. Steel aircraft cable (all parts provided) allows for a strong and safe up/down travel.  Alternatively, the lift can be suspended from the ceiling truss using chain (not provided).  Also recommended for simplifying the truss connection is lengths of Unistrut or Superstrut attached to the ceiling truss. Threaded eye bolts installed on the strut allow for adjustments after the fact.  Lift mounting width: The twin 16' rails are independent of one another. In other words, they do not need to be attached to one another. Each of the two sets of top and bottom lifting rails can be mounted at any distance. This allows the lift to be easily adapted to most brands of grow lights. The rail sets would then be mounted at the same distance that the light mounting points are from one another. This allows the lights to be balanced and properly sized to fit the lifts.  Light attachment: Our lifts were designed for FGI brand grow lights which have flip up brackets sized to fit into the lower lift rails. However in most cases any brand of light can be used with the lifts. Rope hangers or steel loop cables can be used to attach to the provided mounting guide and clevis with cotter pins. Rope hangars and loop cables are not provided.  Clevis cotter pins and rail guides included
0% sale
FGI Uniformity Pro Flex Smart LED Grow Light Wireless Connectivity
FGI Uniformity Pro Flex WiFi Controlled 600W LED Grow Light with WeatherEFX 615 W 1600 PPF 2.60 umols/j $ 995.00 $ 995.00
As a market leader in innovative and energy-efficient grow lights, FGI is proud to introduce the Uniformity Pro Flex WiFi Controlled 600W LED Grow Light with WeatherEFX. 615 watt, 1600 PPF, 2.60 umols/j. Packed with control.  This high-performance LED light is ideal for use in both commercial and home grow operations, and offers a number of features that make it a top choice for professional growers. The Uniformity Pro Flex uses cutting-edge technology to deliver superior light uniformity across the entire footprint, making it an ideal choice for evenly lit grow spaces. With full spectrum white light and adjustable output levels, this grow light can be tailored to meet the specific needs of your plants. Looking to get the most out of your grow lights? The WeatherEFX LED Grow Lighting Controller can help you mimic natural sunlight conditions, promoting healthy plant growth. Wifi Controller Manual and Troubleshooting Guide  The controller uses weather data to adjust the light intensity and spectrum of your LEDs, simulating changing light conditions throughout the day. This helps to reduce stress on plants, leading You can also create custom on/off schedules and scenarios, such as sunrise/sunset, to further customize your lighting. Plus, the controller's Cloud Intelligence feature allows you to check in on your lights from anywhere. Take your garden to the next level with more natural lighting using FGI's weatherEFX. Learn about Cloud Intelligence and our Wifi Controller on our YouTube Channel here:           The WeatherEFX concept in science is based on the idea that changes in weather can have a significant impact on plant growth and development. The term was first coined by botanists studying the effect of leaf shading and competitive growth responses in subalpine herbs. They found that a reduction in sunlight due to clouds results in increased water status and CO2 uptake throughout the day. This allows plants to benefit from the periodic reduction of evaporative demand that results from natural periods of intermittent shade. WeatherEFX has since been applied to other areas of research, including agriculture, where it is used to study how changes in precipitation and temperature can affect crop yields. It is also being used to investigate how extreme weather events, such as heat waves and drought.  The Flex is a top-quality grow light that won't break the bank? Check out the FGI Uniformity Pro grow light with IOT Control. This lightweight (just 30 lbs) and slim (3" deep) grow light is perfect for 4x4 spaces, and its cool design means it won't add too much heat to your grow room. The four push button dimming settings allow you to customize the light intensity to suit your plants' needs, while the red booster spectrum helps you grow larger, denser flowers. Super bright full spectrum 4000K diodes operate at an efficent 2.3umols/j plus 660nm red energy.     PAR Map @ 16" from canopy FGI Spectrum  Product Manuals: Uniformity Pro Flex User Manual Wifi Controller Manual and Troubleshooting Guide  ~Technical Specs~ INPUT/OUTPUT:  615 W 1600 PPF  2.60 umols/j 120V Plug Included110-277V SIZE:46" x 43" x 5"30 Lbs SPECTRUM:3950 CCTWarm White + Cool White + 660 NM Red80 CRI DIODES:LumiLED + CREEE2,640 TtlRatio: 65:33:2 (warm/cool/red) IP65 Damp Rated DLC Listed CSA Certified Product Warranty: 5 years

-10% sale
Hortibest 660W LED Grow Light with 2.8 umols/j Linear Greenhouse LED Top Lighting Array.
Hortibest 660W LED Grow Light with 2.8 umols/j Linear Greenhouse LED Top Lighting Array. $ 899.00 $ 995.00
Our Factory Direct Shark Greenhouse Lighting System is the perfect solution for all your growing needs. We select the top performing LEDs from only the top factories in Asia. The Shark 660W is the one to choose for supplimental greenhouse top lighting applications. This unit produces 1716 PPF at 2.6 umols/j. And is DLC listed for utility rebates nationwide.  The Hortibest Shark is a commercial linear LED grow light, less than 6" wide, for greenhouse lighting applications. The slim form factor won't block the penetration of sunlight while providing supplementary lighting. The horizontal heat sinks efficiently dissipate heat to help get a longer lifespan of the light. And the fanless design eliminates fan noise and fan life issues. The Shark also comes in several other wattage and size configurations from 330W to 850W output. Contact us to learn more about varying sizes for your greenhouse applications.  This high-quality light provides great uniformity when mounted in an array, with our digitally tuned spectrum providing just enough artificial sunlight based on years worth experience designing grow lights. it’s 40” length and 660 watts of power supplies ideal light intensity over greenhouse planting rows. This unit replaces HPS lighting on the same grid layout 1:1.  The Shark offers a variety of controller options as well. From TrolMaster to our FGI Dimming Controller. Connect up to 4 on a single 230V power connection with our AC daisy chain accessory cable to cut down on the number of power recepticles needed.        AC Power Daisy Chain Specs Spectrum     PAR Chart Dimming Control  Specifications Model Number: Shark X12 Power Consumption: 660W max AC Input Voltage, Single Phase (Three Phase Availalble Optionally) AC120-277V,50/60Hz  Power Factor > .09 Spectrum: FSG  Efficiency: 2.6 umols/j PPF Output: 1716 Heat Output: 2244 BTU Enviromental Operating Temperature: Min -4 - Max 113°F (Min -20 - Max 45°C) Dimensions: Length 39.4 x Width 5.1 x  Height 7.9 IN (Length 1000 x Width 129 x Height 200 MM) Weight: 18.3 LBS (8.3 KGS) Dimming: 0-10V dimmable to off Dimming Controllers: All 0-10V. FGI Dimming Controller, TrolMaster ETC... Lifetime: L90: > 50,000 HRS L70: >78,000HRS  IP Rating: IP65/Wet Certifications: ETL / UL 8800 / CE / DLC Warranty: 5 Year Manufacturer Provided Standard Warranty          

0% sale
The FGI Lightpanel 500W V2 LED Grow Light Max PAR 1500 PPFD USA
FGI Lightpanel 500 LED Grow Light, Our Original USA Made LED. Commercial Grade, High Performance 4' Wide Grow Trays. $ 895.00 $ 895.00
Description Introducing the Lightpanel 500 V2. Our FGI patented LED made in the USA. The perfect solution for serious growers who demand very high light levels. With an input power of only 450 watts, this LED panel is one of the most efficient on the market, producing up to 1500 umols/ms at 15” from canopy. If you're looking for an LED panel that can produce serious crop yields, the Lightpanel 500 is the one for you. It's perfect for growers who demand the highest level of performance from their plants, and with its 4' width, it's perfect for long rows over grow trays. Build How did we do it? Most lights spread the LED diodes over a large area to maximize uniformity and many were designed to top out at 1000 umols of PPFD at about 12" from canopy. The FGI Lightpanel 500 V2 takes a radically different approach. This unit was designed with three side by side panels set with 2835 individual warm/neutral white LED diodes spaced in close proximity across each board. Learn more about the Lightpanel 500 on our YouTube Channel here:  Spectrum PAR Map Technical Specs Product: FGI LightPanel 500 V2 Light Source: LEDs: 1260 pcs, Seoul Semiconductor 2835 warm white and neutral white didoes with Conformal Coating. Plus 36 pcs, Cree X-Lamp 660nm Red diodes. Drivers: 2 pcs, YG PLY 240W-55-C6000-RN-P-12 Spectrum: Patented full spectrum 3000K + 5000K + 660nm CCT: 3756K CRI: 90 Photosynthetic Light Measurements: PPF Efficacy* .25 Umol/j PPFD @ 12" 1007 Umol/m²/s Fixture coverage ( max intensity / max uniformity )*: 4' x 3' / 5' x 4' Photopic Light Measurements Luminous Flux*: 69,480 Lumens Luminous Flux Efficacy*: 155.5 Lm/w Other: Input Power: 450 watts Input Voltage: 100-277 autosensing Volts / Amps: 120v / 4.1a 240v / 2.1a 277v / 1.8a Dimensions: 44" L / 16" W / 2.4" H Weight: 18 lbs Operating Temp range: 0 F - 90 F Thermal Management: Passive BTU output: 1700 BTU Recommended Mounting height, Best PAR intensity: 18"-24" Best Uniformity: 24"-30" Dimming / Tuning: 0-10v with optional FGI Dimming Controller, Trolmaster Hydro X or other 0-10V dimming controllers. Dims To Off: Yes Product Warranty: 5 years

-23% sale
Hortibest H8 720 Watt FSG 2.7 umols/j PPF 1944 umols/s Osram Diodes
720 Watt Full Spectrum LED Grow Light. 1944 PPF, 2.7 umols/j. Our most powerful LED. DLC Listed. $ 885.50 $ 1,145.00
We bring you hand picked factory direct LEDs.  Introducing the Hortibest H8 commercial LED grow light.  Looking for a powerful and efficient LED grow light to help you get the most out of your plants? Look no further than the Hortibest H8 Slimline 720W LED Grow Light! Our 720W LED will blow your plants socks off at 1944 PPF. Grow in PAR levels as high as 1500 umols/ms at 12" from canopy. This light rocks efficiency at 2.7 umols/j - a measure that compares power consumed versus light output.  We use the latest multi-package diodes to produce full spectrum light that your plants will love.  Ideal for 4' x 4' spaces, this light has multiple settings to help you optimize growth and yield. Need to tone it down a bit? The built in dimming knob makes it quick and easy without complex controls required.  With the extended daisy chain for power (not just dimming), you'll be able to easily connect multiple lights for even coverage. And the best part? The Hortibest H8 Slimline 720W LED Grow Light uses less energy than previous generation LED grow lights, so you'll save money on your electricity bill. Get the perfect growing conditions for your plants with the Hortibest H8 Slimline 720W LED Grow Light! Highlights Spectrum controllable with optional Moray UV-A and Far Red Module. Now shipping.   Internal LED driver enclosed within side rails. Daisy Chain (power and 0-10V dimming - depends on voltage supplied) Easy to install. No assembly required. Unfold, plug and play. Comes with 120V and 240V plugs. Comes with rope hangars.  Universal 0-10V Control. (TrolMaster, FGI Dimming Controller etc...) Super high PPF output of 1944 umols/s allows for a higher hanging height over canopy, up to 24" at over 1000 PPFD.  DLC listed for rebates in the US, this light is made by a top factory in China and distributed by Forever Green Indoors.  Osram LEDs, and a buil-in internal driver with light-to-light daisy chaining to power which reduces the number of outlets that need to be installed in the grow space.  For example; at 240V, 4 units can be daisy chained to a single receptical at 2.9 amps per light.  The H8 is lightweight at 23 lbs, and compact in size at 42"x42"x2" with its internal driver. This unit is less expensive to ship and easier to hang and manage than heavier or larger LED lights.  As with all our LEDs it uses a fanless design. Does not make noise and produces a relatively low amount of heat output at 2448 BTUs.  The H8 also has optional extended spectrum bars in the UV and Far Red spectral range which can be added as outriggers to it's frame. It also offers a variety of control options from TrolMaster to FGI Brand Dimmers to a Hortibest two channel lighitng controller with adjustable spectrum control over the extended spectrum bars.  ~ specs DLC Listed Fanless Design IP65 Wet Rated Dimmable: 0-10V DLC: OC-H-720A FSG 27 D1 Slim design and 180 degree foldableInput Voltage:120-277VAC 42" x 42" x 2" (1067 x 1077 x 50mm ) Weight 22.7Ibs (10.3kg) AC Voltage 120V 208V 230V 277V AC Current 6.26A 3.55A 3.18A 2.66AAC Power 748W 729W 720W 714WPower Factor 0.996 0.987 0.983 0.969Daisy Chain Quanty 2Pcs 3Pcs 4Pcs 5Pcs Heat Output 2448 BTU/h Max 6.7A@120VAC; Max 3.9A@208VAC;Max 3.5A@230VAC; Max 2.9A@277VAC; 5 Year Standard Warranty link to product spec sheet download   

-12% sale
FGI MH8 Uniformity Pro 660W LED Grow Light 2.6 umols/j 1716 PPF. Folds Open. No assembly. DLC Listed.
FGI MH8 Uniformity Pro 660W LED Grow Light 2.6 umols/j 1716 PPF. Folds Open. No assembly. DLC Listed. $ 799.95 $ 899.00
The FGI MH8 Uniformity Pro 660W LED Grow Light is the perfect solution for commercial gardens that need high PPFD output. This unit is designed to be hung under shelves or close to the ceiling, and it can be daisy-chained with up to four other units on 240V power. It also has a dimming knob and can be controlled by a variety of 0-10V dimmers, making it a versatile and easy-to-use grow light. Highlights Internal LED driver enclosed within side rails. Daisy Chain (power and 0-10V dimming - depends on voltage supplied) Easy to install. No assembly required. Unfold, plug and play. Comes with 120V and 240V plugs. Comes with rope hangars.  Universal control (TrolMaster, FGI Dimming Controller etc...) The unit is DLC listed for rebatres in the US and consumes just 660W of power while outputting 1716 PPF at an efficient 2.6 umols/j.  An internal LED driver keeps the unit streamlined at only 2" deep making it ideal for hanging undershelves or close to ceiling allowing for maximum plant height in the grow space.  It can be power daisy chained, up to 4 units on 240V power, reducing the number of recepticals needed in the grow space.  It ships with a 220V cord with a 110V adapter plug, rope hangars and a 0-10V RJ-16 light to light daisy chain cable.  ~ specs DLC Listed Weight 23lb Size 42 x 42 x 2 Folding 2553 BTUs Voltage                           120V     208V      230V     277V AC Current                      6.26A    3.55A    3.18A    2.66AAC Power                        748W    729W    720W   714WPower Factor                   0.996    0.987     0.983    0.969Daisy Chain Quanty         2Pcs     3Pcs       4Pcs     5Pcs    

-38% sale
The FGI Uniformity Pro 640 LED Grow Light
FGI Uniformity Pro 640w LED Grow Light 1600ppf 4x4 Samsung+Inventronics $ 745.00 $ 1,195.00
The Uniformity Pro 640 was designed to be the best built, longest lasting 4' x 4' LED on the market today. Fully water resistant wiring connections, heavy duty all aluminum bars, sealed crystal lens diode covers, in an easy to install folding frame. We use the highest quality and latest Samsung LM301B top bin diodes to create the FGI grow spectrum. The Uniformity Pro 640 is ideal for very high light intensity cultivation and is DLC approved for utility rebates in the US. We overbuild our lights intentionally so they will last for years and years in harsh grow environments. AT 37 lbs this unit is best in class for construction. Wet rated means it's okay to receive accidental over-spray. Suitable for vertical racks, over trays and benches or in 4' x 4' or larger grow tents. For use with the FGI Dimming Controller for light management and scheduling. Featuring  • All wiring connections are sealed with IP68 waterproof connections. • The LED diodes are covered with gorilla glass like crystal lens coverings. • Bars are heavy duty extruded aluminum. • 1600 umols/s total PPF output. • Nearly 1300 umols/ms of usable photosynthetic light output at 9-12".   Learn more about the FGI Uniformity Pro on our YouTube Channel here:  Our LED diode mix creates the ideal grow spectrum for indoor plants. 3200 full spectrum Samsung LM301B neutral white diodes in 4000K CCT. The white diodes are paired with 48 Osram Osolon Hyper Red Square 660nm diodes, from Osram's horticulture optimized LED diode line. Each light comes with a 10' power cord. It also comes with a 4' connection cable allowing you to control a network of lights with various lighting controllers. Our FGI Dimming Controller is one example and allows advanced programming including on/off timers, sunrise and sunset programming and automatically dims the light if temperatures in the grow space exceed your programmed limit. Par Map @ 12"   FGI Spectrum The Uniformity Pro 640 carries a full five year warranty. It's 5% larger than the Gavita 1700e and Fluence Spydr 2 series.  Specifications: Product Name: FGI HT-02 Uniformity Pro 640Part Number: FGIUP8Rev2UPN: 887437032817Dimensions: W x L x H (inches) 47x47x4 IMPORTANT: The unit does not ship with a standard plug. Please request a free 110/220/270V plug with your purchase if you need one. DiodesBrand Name: Samsung LM301B top binNumber of pieces: 3200Model/Part number: Neutral WhiteCCT: 4000KCRI: 80 Other color DiodesBrand Name: Osram OsolonNumber of pieces: 48Model/Part number: Hyper Red CCT: 660nmRatio mix white/red (%): 3200:48 Lifetime: (L-90 - in hours L90B50 @ 36000HRS Photosynthetic Light MeasurementsPPF Output*: 1600PPF Efficacy*: 2.5Photopic Light MeasurementsLuminous Flux* 92,000Luminous Flux Efficacy*: 144OtherInput Power: 640wInput Voltage: 120-277Cord length: 10'Plug type (note if bare whip): Not includedPackaging DimensionsDimensions W x L x H (inches): 47x47x4Weight (pounds): 36 Operating Temp range (F): 33-104 IP rating (UL-ETL or estimated final UL-ETL): wetDimming / TuningDimming (Yes/No): YesIndpendent channel dimming (Yes/No): NoController type: External 0-10V Product Warranty:5 years  

0% sale
The FGI Square 3 Wifi Smart 3x3 LED Grow light with 730nm Far Red
FGI Square 3 WiFi LED Grow Light, Extended PAR 400-760NM with WeatherEFX $ 499.00 $ 499.00
Looking to get the most out of your grow lights? The WeatherEFX LED Grow Lighting Controller can help you mimic natural sunlight conditions, promoting healthy plant growth. The controller uses either local weather data or your own custom programming to adjust the light intensity and spectrum of your LEDs, simulating changing light conditions throughout the day.  You can also create custom on/off schedules and scenarios, such as sunrise/sunset, to further customize your lighting. Plus, the controller's Cloud Intelligence feature allows you to check in on your lights from anywhere.Take your garden to the next level with more natural lighting using FGI's weatherEFX. Learn more about weatherEFX, and the Cloud Intelligence App on YouTube here:  SCIENCE Botanists studied the effect of leaf shading and competitive growth responses here: Importance of Intermittent Shade to the Ecophysiology of Subalpine Herbs, A. K. Knapp, W. K. Smith and D. R. Young from the Journal: Functional Ecology."A reduction in sunlight caused by clouds, appears to result in substantial increases to water status, and thus CO2 uptake throughout the day. Plants benefit in periodic reduction of evaporative demand that result from natural periods of intermittent shade." DESCRIPTION Looking for a top-quality LED grow light that gives you complete control over your grow operation? Look no further than the FGI Square 3. This powerful light features built-in WiFi mesh technology that allows you to connect to the cloud and monitor your lighting levels and room temperature from anywhere in the world. With the included controller, you can easily adjust the light intensity and spectrum to meet the specific needs of your plants at every stage of growth. And because it uses less energy than traditional HPS grow lights, you'll save money on your electric bill, too! If you're serious about growing healthy, bountiful plants, the FGI Square 3 is the perfect choice. APP/WiFi The Square 3 uses Cloud Intelligence, a SMART devices platform which connects the light to your phone for easy control.  The Square 3 uses a 2.5ghz Wifi connection together with ble mesh to ensure reliable operation even when you are away from the light.  Cloud Intelligence is used by many SMART devices makers such as Amysen, supplier of Wifi Smart Wall plugs which can be used to control fans, dehum, our single color FGI Far Red and UVA lightbars and any other 110V device that runs at less than 10amps.  Square 3 Product Manual  Wifi Controller Manual and Troubleshooting Guide  FEATURES Lightweight - just 13 lbs Slim - 3" deep Cool - won't add too much heat 4 push button dimming settings BUILD Our red + far red booster spectrum will help you grow the largest and most dense flowers. Super bright full spectrum 4000K diodes operate at an efficent 2.3umols/j plus 5% total 660nm red and 730nm far red diodes in a cool square within a square within a square design. This light can run full cycle from seedling to veg to flower. COVERAGE The Square 3 is designed for flowering in 3'x3' spaces at up to 1000 umols/ms. (CO2 recommended for this light level). Or grow at 800 umols/ms without CO2. It can be used for Veg when dimmed. And when fully dimmed can be used over clones and starts too.Below are PAR readings with the lights at three different distances. At 24" expect PPFD to be above 1000 umols/ms, but not as uniform.At 30" PAR will be above 750 umols/ms. This is an ideal light level if not using supplemental CO2. These levels are equal to a typical HPS grow space.At 36" light levels become more uniform from corner to corner but at 680 umols are below what we'd recommend for flower.At 48", light levels are the most uniform and are perfect for mature veg plants. Use the built in dimmer to reduce intensity for young veg plants. Product Manuals:  Square 3 Product Manual  Wifi Controller Manual and Troubleshooting Guide  SPECIFICATIONS FGI Square 3 V2 WiFi LED Grow LightDiodes (White)Diodes Brand name: Shenzhen Lideda Number of pieces 960 CCT 4000K CRI 80CRI Other color Diodes (Red) Brand Name: Shenzhen Lideda Number of pieces 256 CCT NA Wavelength 655-665nm Other color Diodes (FR) Brand Name: Shenzhen Lideda Number of pieces 64 CCT NA Wavelength 730-745nm Ratio mix white/red (%) 3:1Product Warranty/Longevity Warranty (years) 5 years Lifetime (L-90) - in hours 50,000 hours Photosynthetic Light Measurements PPF Output* 700 umol/s PPF Efficacy* PPF 2.3 umol/J Photopic Light Measurements Luminous Flux* 50,000 lm Luminous Flux Efficacy 160 lm/w Other Input Power Watts 310W Input Voltage 110V Cord length 8' (2.44m, 18AWG ) Plug type (note if bare whip) Molded 110V Product Dimensions Dimensions W x L x H (inches) 22 x 22 x 3.5 Weight (pounds) 13 Operating Temp range (F) -20℃ — +40℃ IP rating IP20 Rating CSAPhysical Dimensions Package Dimension W x L x H (inches) 27 x 26 x 6.5 Dimming / Tuning: Push button / Wifi App Product Warranty: 5 years

60 DAYS EASY RETURNS

FREE US SHIPPING

FAST CHECKOUT

SAME DAY FULFILLMENT

(Orders before 11am pst)