
FOHSE A3i PRO
The Best Grow Lights in the Market Now Reimagined.
1500W Industrial LED Grow Light. Designed for advanced control capabilities with 7 Channel Spectral Tunning in High Bay Environments. Producing unbelievable yields at greater efficiencies with more control. Our flagship series, now upgraded with advanced controls and unlimited spectral tuning options.
Our A3i PRO model is the most powerful and efficient commercial LED grow light the world
Volume discounts apply. Price match guarantee.
FOHSE is the world’s leader in LED grow technology. Every light we manufacture includes patent pending technology that puts FOHSE ahead of our competition. We developed and manufactured the A3i PRO to include our patent pending LED technology that makes FOHSE the best grow lights for indoor plants. We aim to give every client the best price on the A3i PRO as possible while keeping the world leading power and efficiency for cannabis plant growth. When you contact our lighting experts they will identify every opportunity for cost savings on FOHSE A3i PRO grow lights – such as volume discounts – that will be passed along to you. Request a quote to get started.
A3i PRO Technical Specs
Please fill out the following form to download the full technical specs

Big Results Cultivated from Small Beginnings
The A3i PRO starts with industry-leading components, from our diodes to our drivers to our optics. Ensuring proven, tested quality built to last.
CO2 Requirements
Growing under high-intensity light conditions will require you to recalibrate every aspect of your environment, and chief among that is CO2! We advise all our clients to supplement at least 1200ppm of CO2 in their environment. Keep a close eye on your plants and take detailed notes every crop cycle to find the sweet spot. CO2 gives your crop the carbon building blocks they need to build biomass, and without an adequate amount it won’t matter how much light your system throws down.
supplement CO2
Accomplish More With Less
Because of its unprecedented power output and industry-leading coverage area, an A3i PRO system will always require less fixtures to produce similar (or better) light levels as an HPS system or LED system of similar size. Depending on your goals you can opt to use less fixtures to produce the light levels you’re accustomed to, or you can ‘fill the grid’ with A3i PRO luminaires and join the growing movement of pioneers setting harvest records under high-intensity lighting environments.

Unmatched Canopy Penetration: Redefining Limits in Commercial LED Grow Lights
Revolutionizing Cannabis Cultivation: Overcoming Past Industry Limitations with Unparalleled Canopy Penetration. Discover the A3i PRO – The Ultimate Solution for Maximum Yields and Efficiency. Advanced Swiveling Light Bars Illuminate Neighboring Grow Plots for Optimal Canopy Coverage.
How Much Light is Too Much?
When you manufacture the most powerful grow light in the world, this is a question we often get. The short answer is your plants will tell you. The deeper answer is, well, it depends on what other factors in your environment are limiting your crop from fully utilizing all available light – watering schedule? Leaf surface temperature? Ambient CO2? Genetics?
For our cannabis clients, the question is actually ‘How much light can cannabis take?’ The answer to that question is, we really don’t know (click the link to listen to Dr. Bruce Bugbee’s thoughts on the matter).
On of our clients in Michigan is really pushing their genetics to find out, and after setting back-to-back, record-breaking harvests all throughout 2020, they still haven’t found the top! Follow this link for a brief summary of their results over 40 harvests.
How much light is too much?
PPFD Maps
Precision Light Planning
If there’s one thing we’ve learned touring close to a thousand cultivation facilities around the world, it’s that every environment is unique with its own special requirements. When you work with FOHSE, our partnership kicks off with a thorough review of your grow room plans and your goals. Our light planning team heads into our simulation software to develop a 100% custom configuration tailor-fit to the unique needs of your operation. We can even take it a step further and predict your cost of cooling, cost of electricity, and how much you’ll save owing an A3i PRO system over time.

Ultimate Control over Your Lighting Capabilities
The first of it’s kind, unlock your plants true potential with full spectrum tunability. The A3i PRO has upgraded tunability consisting of 7 isolated spectrum channels including: UVA, green, far red and more providing customizable brightness and spectral output throughout the growth cycle.

Never Buy Another Bulb Again. The Future is Here.
Labor costs
Hazardous waste fees
Tedious cleaning
The cost of the bulbs themselves
The inevitable replacement of worn out ballasts
50,000 hours
Bulbs Die Suddenly. LEDs slowly fade.
To put the L70 of the A3i PRO into perspective, after 110,000 hours of use the fixture’s output will have diminished to 2,940 µmol/s, which is still 47% MORE POWERFUL than a fresh-out-the-box 1000W DE HPS bulb. And just how long is 110,000 hours? If you run 12/12 cycles every day that’s 9,166 days … 1,309 weeks … 301 months … 25.1 years of runtime and your system will still outperform an HPS system.

Revolutionary Heat Control Technology for Commercial LED Grow Lights
The Infrared Spike
Ever notice how most spectral charts for grow lights stop around the far-red region? That’s because extending the chart into the infrared region would show one of the biggest problems with plasma-burning light sources… an enormous spike of radiative heat!
HID's Dirty Secret The IR Spike
16,416 in2
Make a Friend Out of Heat
Unlike obsolete plasma grow lights the A3i PRO has no massive ‘infrared spike’ hidden on the far ends of its spectrum, meaning drastically less heat radiating down on your canopy.

Without the IR spike cooking your upper canopy, you’ll need far less cooling to compensate in order to keep your LSTs in an optimal range.

A reduction in radiative heat and chilled air compensation makes for a much more even LST temperature throughout your upper to lower canopy.

An even canopy LST temperature promotes more RuBisCO reactions down your canopy, leading to more instra-canopy bud development.

Cannabinoids are heat-sensitive. No more destructive IR spike means more cannabinoids make it to harvest.

Terpenes are also heat-sensitive compounds and degrade at higher temperatures. Enjoy some of your best terp profiles ever!

More cannabinoids and better terpene profiles means you’ll enjoy some of your best harvests yet. Experience the results of the best full-spectrum LED grow lights.

Efficiency Optimized.
Savings Add Up (and so do yields)
Every year the wholesale price for flower and biomass is dropping. What’s more, the global cannabis market is consolidating even before widespread legalization has occured. Top that off with energy restrictions popping up in various markets aroud the world. With this in mind, it’s obvious that any licensed cultivator needs every edge they can get.
We know the biggest barrier to entry with an LED grow light system is the upfront cost. When you break down the operating cost figures as compared to an HPS system, reality sets in – can you afford not to go LED? See for yourself.
Analysis Parameters
Room Size
875 ft²
Fixtures per Room
A3i PRO = 30
Avg. PPFD = 1,671 μmol/m2s
Avg. Power Level
A3i PRO = 1110W
Min: 750W, Max: 1500W
Daily Usage
12 hours
A/C EER
11
Labor Cost
$15/hr
Room Count
40
HPS = 45
Avg. PPFD = 1,162 μmol/m2s
HPS = 1082W
$/kWh
$0.10
Cost per Bulb
$40
operating
cost
$768,282 | Savings: $527,660
$1,295,942
Costs
$639,360
$933,120
Costs
$128,922
$289,472
Maintenance
Costs
$0
$73,350
operating
cost
$1,472,629 | Savings: $996,987
$2,469,616
Costs
$1,214,784
$1,772,928
Costs
$257,845
$549,988
Maintenance
Costs
$0
$146,700
operating
cost
$2,151,191 | Savings: $1,492,118
$3,643,309
Costs
$1,709,209
$2,616,736
Costs
$360,983
$810,523
Maintenance
Costs
$0
$220,050
operating
cost
$2,842,646 | Savings: $1,974,348
$4,816,994
Costs
$2,365,632
$3,452,544
Costs
$477,013
$1,071,049
Maintenance
Costs
$0
$293,400
operating
cost
$3,534,100 | Savings: $2,456,577
$5,990,677
Costs
$2,941,056
$4,292,352
Costs
$593,044
$1,331,575
Maintenance
Costs
$0
$366,750
operating
cost
$4,225,554 | Savings: $2,938,806
$7,164,361
Costs
$3,516,480
$5,132,160
Costs
$709,074
$1,592,100
Maintenance
Costs
$0
$440,100
operating
cost
$4,917,009 | Savings: $3,421,035
$8,338,044
Costs
$4,091,904
$5,971,968
Costs
$825,104
$1,852,626
Maintenance
Costs
$0
$513,450
operating
cost
$5,685,291 | Savings: $3,948,696
$9,633,987
Costs
$4,731,264
$6,905,088
Costs
$954,027
$2,142,099
Maintenance
Costs
$0
$586,800
operating
cost
$6,299,918 | Savings: $4,385,494
$10,685,411
Costs
$5,242,752
$7,651,584
Costs
$1,057,165
$2,373,677
Maintenance
Costs
$0
$660,150
operating
cost
$6,991,372 | Savings: $4,867,723
$11,859,095
Costs
$5,818,176
$8,491,392
Costs
$1,173,195
$2,634,202
Maintenance
Costs
$0
$733,500
A3i PRO v. HPS operation costs
More Light, or Smaller Bills?
When you equip your facility with the most powerful AND efficient LED grow light available you have two paths forward available. First, you can configure your A3i PRO system to maintain the light levels you’re used to, and thanks to the A3i PRO’s top-rated efficacy you’ll produce that light at rock bottom prices. Second, you can configure your A3i PRO system to maintain the electrical expenditures you’re used to, and with the A3i PRO’s sky high efficacy that means you’ll produce far more light per watt than you’ve ever seen. Just wait and see what’s possible win a high-intensity light environment. Click here for a glimpse.

Elevate Plant Health with Our 4-in-1 Integrated Sensor for Temperature, Humidity, CO₂, and PPFD Optimization
Central Control Manual
Savings Add Up (and so do yields)
Analysis Parameters
Room Size
875 ft²
Fixtures per Room
A3i PRO = 30
Avg. PPFD = 1,671 μmol/m2s
Avg. Power Level
A3i PRO = 1110W
Min: 750W, Max: 1500W
Daily Usage
12 hours
A/C EER
11
Labor Cost
$15/hr
Room Count
40
HPS = 45
Avg. PPFD = 1,162 μmol/m2s
HPS = 1082W
$/kWh
$0.10
Cost per Bulb
$40
operating
cost
$768,282 | Savings: $527,660
$1,295,942
Costs
$639,360
$933,120
Costs
$128,922
$289,472
Maintenance
Costs
$0
$73,350
operating
cost
$1,472,629 | Savings: $996,987
$2,469,616
Costs
$1,214,784
$1,772,928
Costs
$257,845
$549,988
Maintenance
Costs
$0
$146,700
operating
cost
$2,151,191 | Savings: $1,492,118
$3,643,309
Costs
$1,709,209
$2,616,736
Costs
$360,983
$810,523
Maintenance
Costs
$0
$220,050
operating
cost
$2,842,646 | Savings: $1,974,348
$4,816,994
Costs
$2,365,632
$3,452,544
Costs
$477,013
$1,071,049
Maintenance
Costs
$0
$293,400
operating
cost
$3,534,100 | Savings: $2,456,577
$5,990,677
Costs
$2,941,056
$4,292,352
Costs
$593,044
$1,331,575
Maintenance
Costs
$0
$366,750
operating
cost
$4,225,554 | Savings: $2,938,806
$7,164,361
Costs
$3,516,480
$5,132,160
Costs
$709,074
$1,592,100
Maintenance
Costs
$0
$440,100
operating
cost
$4,917,009 | Savings: $3,421,035
$8,338,044
Costs
$4,091,904
$5,971,968
Costs
$825,104
$1,852,626
Maintenance
Costs
$0
$513,450
operating
cost
$5,685,291 | Savings: $3,948,696
$9,633,987
Costs
$4,731,264
$6,905,088
Costs
$954,027
$2,142,099
Maintenance
Costs
$0
$586,800
operating
cost
$6,299,918 | Savings: $4,385,494
$10,685,411
Costs
$5,242,752
$7,651,584
Costs
$1,057,165
$2,373,677
Maintenance
Costs
$0
$660,150
operating
cost
$6,991,372 | Savings: $4,867,723
$11,859,095
Costs
$5,818,176
$8,491,392
Costs
$1,173,195
$2,634,202
Maintenance
Costs
$0
$733,500
Every year the wholesale price for flower and biomass is dropping. What’s more, the global cannabis market is consolidating even before widespread legalization has occured. Top that off with energy restrictions popping up in various markets aroud the world. With this in mind, it’s obvious that any licensed cultivator needs every edge they can get.
We know the biggest barrier to entry with an LED grow light system is the upfront cost. When you break down the operating cost figures as compared to an HPS system, reality sets in – can you afford not to go LED? See for yourself.
A3i PRO Technical Specs
Please fill out the following form to download the full technical specs
Customize & automate lighting schedules
Set custom sunrise & sunset preferences
Make spectrum selections to suit all phases of growth
Control up to 100 fixtures per controller
Easy-to-use tap & swipe interface
Make brightness adjustments down to 30%

Dustproof. Watertight. Safe to Handle.
IP66
Ingress Protection
Ingress Protection testing really puts our fixtures through the ringer: sandblasting, water spray, pressure washing, submersion, etc. Rest assured your A3i PRO is well-protected from the hazards of your grow environment.

Easily Integrate with Your Enviroment

Seeing Is Believing.
We won’t just tell you we’re the best grow light manufacturer. We’ll prove it.
Contact us today for a custom light plan.
Full Technical Specs

FOHSE A3i PRO
The Best Grow Lights in the Market Now Reimagined.
1500W Industrial LED Grow Light. Designed for advanced control capabilities with 7 Channel Spectral Tunning in High Bay Environments. Producing unbelievable yields at greater efficiencies with more control. Our flagship series, now upgraded with advanced controls and unlimited spectral tuning options.
Our A3i PRO model is the most powerful and efficient commercial LED grow light the world
Volume discounts apply. Price match guarantee.
FOHSE is the world’s leader in LED grow technology. Every light we manufacture includes patent pending technology that puts FOHSE ahead of our competition. We developed and manufactured the A3i PRO to include our patent pending LED technology that makes FOHSE the best grow lights for indoor plants. We aim to give every client the best price on the A3i PRO as possible while keeping the world leading power and efficiency for cannabis plant growth. When you contact our lighting experts they will identify every opportunity for cost savings on FOHSE A3i PRO grow lights – such as volume discounts – that will be passed along to you. Request a quote to get started.
A3i PRO Technical Specs
Please fill out the following form to download the full technical specs

The A3i PRO starts with industry-leading components, from our diodes to our drivers to our optics. Ensuring proven, tested quality built to last.
CO2 Requirements
Growing under high-intensity light conditions will require you to recalibrate every aspect of your environment, and chief among that is CO2! We advise all our clients to supplement at least 1200ppm of CO2 in their environment. Keep a close eye on your plants and take detailed notes every crop cycle to find the sweet spot. CO2 gives your crop the carbon building blocks they need to build biomass, and without an adequate amount it won’t matter how much light your system throws down.
supplement CO2
4359 μmol/s
2.91 μmol/s
Accomplish More With Less
Because of its unprecedented power output and industry-leading coverage area, an A3i PRO system will always require less fixtures to produce similar (or better) light levels as an HPS system or LED system of similar size. Depending on your goals you can opt to use less fixtures to produce the light levels you’re accustomed to, or you can ‘fill the grid’ with A3i PRO luminaires and join the growing movement of pioneers setting harvest records under high-intensity lighting environments.

Revolutionizing Cannabis Cultivation: Overcoming Past Industry Limitations with Unparalleled Canopy Penetration. Discover the A3i PRO – The Ultimate Solution for Maximum Yields and Efficiency. Advanced Swiveling Light Bars Illuminate Neighboring Grow Plots for Optimal Canopy Coverage.
How Much Light is Too Much?
When you manufacture the most powerful grow light in the world, this is a question we often get. The short answer is your plants will tell you. The deeper answer is, well, it depends on what other factors in your environment are limiting your crop from fully utilizing all available light – watering schedule? Leaf surface temperature? Ambient CO2? Genetics?
For our cannabis clients, the question is actually ‘How much light can cannabis take?’ The answer to that question is, we really don’t know (click the link to listen to Dr. Bruce Bugbee’s thoughts on the matter).
On of our clients in Michigan is really pushing their genetics to find out, and after setting back-to-back, record-breaking harvests all throughout 2020, they still haven’t found the top! Follow this link for a brief summary of their results over 40 harvests.
How much light is too much?
PPFD Maps
Precision Light Planning
If there’s one thing we’ve learned touring close to a thousand cultivation facilities around the world, it’s that every environment is unique with its own special requirements. When you work with FOHSE, our partnership kicks off with a thorough review of your grow room plans and your goals. Our light planning team heads into our simulation software to develop a 100% custom configuration tailor-fit to the unique needs of your operation. We can even take it a step further and predict your cost of cooling, cost of electricity, and how much you’ll save owing an A3i PRO system over time.

The first of it’s kind, unlock your plants true potential with full spectrum tunability. The A3i PRO has upgraded tunability consisting of 7 isolated spectrum channels including: UVA, green, far red and more providing customizable brightness and spectral output throughout the growth cycle.

Labor costs
Hazardous waste fees
Tedious cleaning
The cost of the bulbs themselves
The inevitable replacement of worn out ballasts
50,000 hours
Bulbs Die Suddenly. LEDs slowly fade.
To put the L70 of the A3i PRO into perspective, after 110,000 hours of use the fixture’s output will have diminished to 2,940 µmol/s, which is still 47% MORE POWERFUL than a fresh-out-the-box 1000W DE HPS bulb. And just how long is 110,000 hours? If you run 12/12 cycles every day that’s 9,166 days … 1,309 weeks … 301 months … 25.1 years of runtime and your system will still outperform an HPS system.

The Infrared Spike
Ever notice how most spectral charts for grow lights stop around the far-red region? That’s because extending the chart into the infrared region would show one of the biggest problems with plasma-burning light sources… an enormous spike of radiative heat!
HID's Dirty Secret The IR Spike

Savings Add Up (and so do yields)
Every year the wholesale price for flower and biomass is dropping. What’s more, the global cannabis market is consolidating even before widespread legalization has occured. Top that off with energy restrictions popping up in various markets aroud the world. With this in mind, it’s obvious that any licensed cultivator needs every edge they can get.
We know the biggest barrier to entry with an LED grow light system is the upfront cost. When you break down the operating cost figures as compared to an HPS system, reality sets in – can you afford not to go LED? See for yourself.
Analysis Parameters
Room Size
875 ft²
Fixtures per Room
A3i PRO = 30
Avg. PPFD = 1,671 μmol/m2s
Avg. Power Level
A3i PRO = 1110W
Min: 750W, Max: 1500W
Daily Usage
12 hours
A/C EER
11
Labor Cost
$15/hr
Room Count
40
HPS = 45
Avg. PPFD = 1,162 μmol/m2s
HPS = 1082W
$/kWh
$0.10
Cost per Bulb
$40
operating
cost
$768,282 | Savings: $527,660
$1,295,942
Costs
$639,360
$933,120
Costs
$128,922
$289,472
Maintenance
Costs
$0
$73,350
operating
cost
$1,472,629 | Savings: $996,987
$2,469,616
Costs
$1,214,784
$1,772,928
Costs
$257,845
$549,988
Maintenance
Costs
$0
$146,700
operating
cost
$2,151,191 | Savings: $1,492,118
$3,643,309
Costs
$1,709,209
$2,616,736
Costs
$360,983
$810,523
Maintenance
Costs
$0
$220,050
operating
cost
$2,842,646 | Savings: $1,974,348
$4,816,994
Costs
$2,365,632
$3,452,544
Costs
$477,013
$1,071,049
Maintenance
Costs
$0
$293,400
operating
cost
$3,534,100 | Savings: $2,456,577
$5,990,677
Costs
$2,941,056
$4,292,352
Costs
$593,044
$1,331,575
Maintenance
Costs
$0
$366,750
operating
cost
$4,225,554 | Savings: $2,938,806
$7,164,361
Costs
$3,516,480
$5,132,160
Costs
$709,074
$1,592,100
Maintenance
Costs
$0
$440,100
operating
cost
$4,917,009 | Savings: $3,421,035
$8,338,044
Costs
$4,091,904
$5,971,968
Costs
$825,104
$1,852,626
Maintenance
Costs
$0
$513,450
operating
cost
$5,685,291 | Savings: $3,948,696
$9,633,987
Costs
$4,731,264
$6,905,088
Costs
$954,027
$2,142,099
Maintenance
Costs
$0
$586,800
operating
cost
$6,299,918 | Savings: $4,385,494
$10,685,411
Costs
$5,242,752
$7,651,584
Costs
$1,057,165
$2,373,677
Maintenance
Costs
$0
$660,150
operating
cost
$6,991,372 | Savings: $4,867,723
$11,859,095
Costs
$5,818,176
$8,491,392
Costs
$1,173,195
$2,634,202
Maintenance
Costs
$0
$733,500
A3i PRO v. HPS operation costs
More Light, or Smaller Bills?
When you equip your facility with the most powerful AND efficient LED grow light available you have two paths forward available. First, you can configure your A3i PRO system to maintain the light levels you’re used to, and thanks to the A3i PRO’s top-rated efficacy you’ll produce that light at rock bottom prices. Second, you can configure your A3i PRO system to maintain the electrical expenditures you’re used to, and with the A3i PRO’s sky high efficacy that means you’ll produce far more light per watt than you’ve ever seen. Just wait and see what’s possible win a high-intensity light environment. Click here for a glimpse.

Central Control Manual
Savings Add Up (and so do yields)
Analysis Parameters
Room Size
875 ft²
Fixtures per Room
A3i PRO = 30
Avg. PPFD = 1,671 μmol/m2s
Avg. Power Level
A3i PRO = 1110W
Min: 750W, Max: 1500W
Daily Usage
12 hours
A/C EER
11
Labor Cost
$15/hr
Room Count
40
HPS = 45
Avg. PPFD = 1,162 μmol/m2s
HPS = 1082W
$/kWh
$0.10
Cost per Bulb
$40
operating
cost
$768,282 | Savings: $527,660
$1,295,942
Costs
$639,360
$933,120
Costs
$128,922
$289,472
Maintenance
Costs
$0
$73,350
operating
cost
$1,472,629 | Savings: $996,987
$2,469,616
Costs
$1,214,784
$1,772,928
Costs
$257,845
$549,988
Maintenance
Costs
$0
$146,700
operating
cost
$2,151,191 | Savings: $1,492,118
$3,643,309
Costs
$1,709,209
$2,616,736
Costs
$360,983
$810,523
Maintenance
Costs
$0
$220,050
operating
cost
$2,842,646 | Savings: $1,974,348
$4,816,994
Costs
$2,365,632
$3,452,544
Costs
$477,013
$1,071,049
Maintenance
Costs
$0
$293,400
operating
cost
$3,534,100 | Savings: $2,456,577
$5,990,677
Costs
$2,941,056
$4,292,352
Costs
$593,044
$1,331,575
Maintenance
Costs
$0
$366,750
operating
cost
$4,225,554 | Savings: $2,938,806
$7,164,361
Costs
$3,516,480
$5,132,160
Costs
$709,074
$1,592,100
Maintenance
Costs
$0
$440,100
operating
cost
$4,917,009 | Savings: $3,421,035
$8,338,044
Costs
$4,091,904
$5,971,968
Costs
$825,104
$1,852,626
Maintenance
Costs
$0
$513,450
operating
cost
$5,685,291 | Savings: $3,948,696
$9,633,987
Costs
$4,731,264
$6,905,088
Costs
$954,027
$2,142,099
Maintenance
Costs
$0
$586,800
operating
cost
$6,299,918 | Savings: $4,385,494
$10,685,411
Costs
$5,242,752
$7,651,584
Costs
$1,057,165
$2,373,677
Maintenance
Costs
$0
$660,150
operating
cost
$6,991,372 | Savings: $4,867,723
$11,859,095
Costs
$5,818,176
$8,491,392
Costs
$1,173,195
$2,634,202
Maintenance
Costs
$0
$733,500
Every year the wholesale price for flower and biomass is dropping. What’s more, the global cannabis market is consolidating even before widespread legalization has occured. Top that off with energy restrictions popping up in various markets aroud the world. With this in mind, it’s obvious that any licensed cultivator needs every edge they can get.
We know the biggest barrier to entry with an LED grow light system is the upfront cost. When you break down the operating cost figures as compared to an HPS system, reality sets in – can you afford not to go LED? See for yourself.
A3i PRO Technical Specs
Please fill out the following form to download the full technical specs

IP66
Ingress Protection
Ingress Protection testing really puts our fixtures through the ringer: sandblasting, water spray, pressure washing, submersion, etc. Rest assured your A3i PRO is well-protected from the hazards of your grow environment.



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Full Technical Specs