LED Growers Unite, Who makes the BEST LED and how long has it lasted ? Cast Your Vote!!!

[growmore15]

iLuminar Lighting, ThinkGrow, Fohse, Flexstar, Fluence, Photobio, Dutch Lighting Innovations, Gavita, GroPros and a few others.

 

[acespicoli]

Colours of Transition Metal Ions in Aqueous Solution

This graphic looks at the colours of transition metal ions when they are in aqueous solution (in water), and also looks at the reason why we see coloured compounds and complexes for transition metals. This helps explain, for example, why rust...

www.compoundchem.com

Visible Spectra of the Elements

www.atomic-spectra.net

Spectroscopy - Wikipedia

en.wikipedia.org

Colour	Wavelength (nm)	Frequency (THz)	Photon energy (eV)
violet	380–450	670–790	2.75–3.26
blue	450–485	620–670	2.56–2.75
cyan	485–500	600–620	2.48–2.56
green	500–565	530–600	2.19–2.48
yellow	565–590	510–530	2.10–2.19
orange	590–625	480–510	1.98–2.10
red	625–750	400–480	1.65–1.98

Electromagnetic spectrum - Wikipedia​

en.wikipedia.org

Diagnose and Treat Cal Mag Deficiency in Vegging & Flowering

This post is an all-rounded guide on the causes, symptoms, and treatments of Cal Mag deficiency weed, including specific signs in veg and flowering stages.

www.spider-farmer.com

K, Ca, Mg 4-2-1 ratio

 

[acespicoli]

Photosynthesis (/ˌfoʊtəˈsɪnθəsɪs/ FOH-tə-SINTH-ə-sis)[1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their metabolism.

Photosynthesis - Wikipedia

en.wikipedia.org

Plant nutrition is the study of the chemical elements and compounds necessary for plant growth and reproduction, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite. This is in accordance with Justus von Liebig's law of the minimum.[1] The total essential plant nutrients include seventeen different elements: carbon, oxygen and hydrogen which are absorbed from the air, whereas other nutrients including nitrogen are typically obtained from the soil (exceptions include some parasitic or carnivorous plants).

Plants must obtain the following mineral nutrients from their growing medium:[2]

• The macronutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), carbon (C), hydrogen (H), oxygen (O)
• The micronutrients (or trace minerals): iron (Fe), boron (B), chlorine (Cl), manganese (Mn), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni)

Plant nutrition - Wikipedia

en.wikipedia.org

Conventional LEDs are made from a variety of inorganic semiconductor materials, the following table shows the available colors with wavelength range, voltage drop and material:

	Color	Wavelength (nm)	Voltage (V)	Semiconductor Material
	Infrared	λ > 760	ΔV < 1.9	Gallium arsenide (GaAs) Aluminium gallium arsenide (AlGaAs)
	Red	610 < λ < 760	1.63 < ΔV < 2.03	Aluminium gallium arsenide (AlGaAs) Gallium arsenide phosphide (GaAsP) Aluminium gallium indium phosphide (AlGaInP) Gallium(III) phosphide (GaP)
	Orange	590 < λ < 610	2.03 < ΔV < 2.10	Gallium arsenide phosphide (GaAsP) Aluminium gallium indium phosphide (AlGaInP) Gallium(III) phosphide (GaP)
	Yellow	570 < λ < 590	2.10 < ΔV < 2.18	Gallium arsenide phosphide (GaAsP) Aluminium gallium indium phosphide (AlGaInP) Gallium(III) phosphide (GaP)
	Green	500 < λ < 570	1.9[180] < ΔV < 4.0	Indium gallium nitride (InGaN) / Gallium(III) nitride (GaN) Gallium(III) phosphide (GaP) Aluminium gallium indium phosphide (AlGaInP) Aluminium gallium phosphide (AlGaP)
	Blue	450 < λ < 500	2.48 < ΔV < 3.7	Zinc selenide (ZnSe) Indium gallium nitride (InGaN) Silicon carbide (SiC) as substrate Silicon (Si) as substrate — (under development)
	Violet	400 < λ < 450	2.76 < ΔV < 4.0	Indium gallium nitride (InGaN)
	Purple	multiple types	2.48 < ΔV < 3.7	Dual blue/red LEDs, blue with red phosphor, or white with purple plastic
	Ultraviolet	λ < 400	3.1 < ΔV < 4.4	Diamond (235 nm)[181] Boron nitride (215 nm)[182][183] Aluminium nitride (AlN) (210 nm)[184] Aluminium gallium nitride (AlGaN) Aluminium gallium indium nitride (AlGaInN) — (down to 210 nm)[185]
	White	Broad spectrum	ΔV = 3.5	Blue/UV diode with yellow phosphor

Most commonly used semiconductor materials are crystalline inorganic solids. These materials are classified according to the periodic table groups of their constituent atoms.
The word crystal derives from the Ancient Greek word κρύσταλλος (krustallos), meaning both "ice" and "rock crystal",[3] from κρύος (kruos), "icy cold, frost".[4][5]

Examples of large crystals include snowflakes, diamonds, and table salt.

Light-emitting diode - Wikipedia

en.wikipedia.org

Spectrum of the visible wavelengths at approximately sea level; illumination by direct sunlight compared with direct sunlight scattered by cloud cover and with indirect sunlight by varying degrees of cloud cover. The yellow line shows the power spectrum of direct sunlight under optimal conditions. To aid comparison, the other illumination conditions are scaled by the factor shown in the key so they match at about 470 nm (blue light).

Sunlight - Wikipedia

en.wikipedia.org

@dogzter my plants always look happier on cloudy days, sun is best light source when available Made me think of your suggestion in the prior thread

One of the most striking predictions of quantum physics is that matter can be generated solely from light (i.e., photons), and in fact, the astronomical bodies known as pulsars achieve this feat.

Let there be matter: Simulating the creation of matter from photon–photon collisions

A team led by researchers at Osaka University and University of California, San Diego has conducted simulations of creating matter solely from collisions of light particles. Their method circumvents what would otherwise be the intensity limitations of modern lasers and can be readily implemented...

phys.org

LED use requires attention to nutrient deficiency (lack of)
K, Ca, Mg, 4-2-1 ratio to prevent antagonism

 

[acespicoli]

iLuminar Lighting, ThinkGrow, Fohse, Flexstar, Fluence, Photobio, Dutch Lighting Innovations, Gavita, GroPros and a few others.

If you think of the others please share will add, and hopefully launch another poll in the near future
To give all manufacturers a equal chance at 1st place,

Also will be interesting to see what diode the top picks are using ?

 

[Piff Rhys Jones]

 

[acespicoli]

Welcome good to see you!

 

[Drippy Sally]

Personally I organise my cycles by 10 weeks because I like to have several types of high, in my plants I have some 7/8 weekers, 9, 10/11 weekers. If use 2 different strategies to have my room filled to the max all the time, I replace each harvested plant by a new one from veg or I wait to harvest all the plants and give a bit more veg time under my bigger light. It depends on the plants growth in veg but my goal is to use each square centimer of my grow area to the max as I grow in an illegal country and have a very small scale grow.
In a year I do 5 harvests of 400/500g, for the space used (0,6 m2 veg/ 1,4m2 flo) I'm pretty happy with my annual yield but I hope to increase to 600g by harvest, I know it's possible with the good environment and more important the good plants because today there is a lot of cross who produce high quality buds with under average yield.

I use this strategy with my 64 square foot flower area. There are basically 4 lights in my room with 4'x4' area under each light. I harvest from under a light every two weeks an area. In that two weeks I chop the early ones that are ready, and get the other ones as the two week window goes on. I am using two Cannatrol units and time most of my activities based on that schedule for dry and cure (8 days currently). Sometimes I have SOG in the 4x4 and other times I may have 2 or 4 plants under the light. Either way that area gets chopped and replanted to keep the cycle going. This yields me roughly 60-70 pounds per year perpetually. My veg/clone/seedling room is 18 square feet and is enough room to feed this flower room. I stay on top of chop, dry, cure, trim, and then store for longer cure.

 

[Rocket Soul]

I use this strategy with my 64 square foot flower area. There are basically 4 lights in my room with 4'x4' area under each light. I harvest from under a light every two weeks an area. In that two weeks I chop the early ones that are ready, and get the other ones as the two week window goes on. I am using two Cannatrol units and time most of my activities based on that schedule for dry and cure (8 days currently). Sometimes I have SOG in the 4x4 and other times I may have 2 or 4 plants under the light. Either way that area gets chopped and replanted to keep the cycle going. This yields me roughly 60-70 pounds per year perpetually. My veg/clone/seedling room is 18 square feet and is enough room to feed this flower room. I stay on top of chop, dry, cure, trim, and then store for longer cure.

Also doing something similar, could i ask what size the plant going from veg to flower is? And after how much time in seedling+vegg?
Just trying to figure something out for my self and our vegg space efficiency.

 

[Drippy Sally]

Also doing something similar, could i ask what size the plant going from veg to flower is? And after how much time in seedling+vegg?
Just trying to figure something out for my self and our vegg space efficiency.

Everything in my process does two weeks in seedling stage, eight weeks in veg, and then 8-10 weeks flower. The plants are usually around 24-30" high, give or take a few inches. Every so often I will put some 12 inch plants in the flower room. It just depends on the strain and available spots. Sometimes I put plants in the flower room after only 4 weeks veg, but mostly I stick to my process. I currently have 64 plants in flower and 42 in my veg room. I am about to move 16 from veg to flower tomorrow and cut two mature plants.

 

[Rocket Soul]

Everything in my process does two weeks in seedling stage, eight weeks in veg, and then 8-10 weeks flower. The plants are usually around 24-30" high, give or take a few inches. Every so often I will put some 12 inch plants in the flower room. It just depends on the strain and available spots. Sometimes I put plants in the flower room after only 4 weeks veg, but mostly I stick to my process. I currently have 64 plants in flower and 42 in my veg room. I am about to move 16 from veg to flower tomorrow and cut two mature plants.

Nice, thx for the dets . We do slightly larger plants, with a bigger vegg but we go very slow with the vegg.

The more i think about it the more mad it seems; 16 plants in, for this start; with another in 2 weeks and then again in 2 weeks. Cant even see how that work space works, but all power to you. About 3 plants per square foot in veg right now, unless you stretch it out by having 2 separate vertical tiers.

 

[Drippy Sally]

Nice, thx for the dets . We do slightly larger plants, with a bigger vegg but we go very slow with the vegg.

The more i think about it the more mad it seems; 16 plants in, for this start; with another in 2 weeks and then again in 2 weeks. Cant even see how that work space works, but all power to you. About 3 plants per square foot in veg right now, unless you stretch it out by having 2 separate vertical tiers.

The rotation in my setup is smooth but intense. It is all about planning and logistics. The pot sizes are what make the system work. I use 3" pots for seeds and cuttings and around week 4 transplant into 5" pots. The reason this is critical is that 18 plants in 3" pots fit in a 1020 tray. Once transplanted they are now in 5" pots and 8 pots per 1020 tray. My rack system is each section is a 2'x3' shelf and holds three 1020 trays each. As soon as I transplant from the 3" pots I either plop more seeds or take more cuttings for the 36 spot CloneKing. Using a spread sheet with conditional date formatting is also key for me. Once the plants come out of the veg area I transplant the 5" pots into 3 gal pots which fit 8 pots on the same 2'x3' rack. Every two weeks I replant two of the 2'x3' shelf racks. It doesn't matter if there are one or two plants on the shelf and seven feet tall or if there are four or eight plants on that shelf and SOG. Two shelves get cut every 16 days or so. It's a very well tuned ballet that includes the availability of the two Cannatrol systems as well.

I made this system with construction paper cut outs of my room, each rack, the 1020 trays, the 3 gal pots, and all my lights and watering systems. I made the model of the lay out and then I started populating each area week by week like I was actually growing in it for real. This allowed me to work out any of the problems with flow and timing. Once the process was fully loaded I pretended to harvest and then watch the ballet to ensure it was working as anticipated. It takes discipline too. I should make a time lapse a 9 week cycle. I say 9 weeks because I work off the 8 day Cannatrol timing for my planting schedule and the whole thing starts over around 9 or so weeks. It's a fun sport for sure!

 

[bigherb]

View attachment 19051138

FOHSE Leading the Way in Innovation

The innovators in LED grow lights technology. Discover how our dedication to research and development drives unparalleled results for growers worldwide. Join us

www.fohse.com

Features​

Brand	Fohse
SKU	PISCES-9
Weight (lb.)	38
Prop 65	No
Length (in.)	49
Width (in.)	26
Height (in.)	5
Warranty	3 Year
Lead Time	This product ships in 2 business days
Lighting Type	LED
LED Light Spectrum	Full Spectrum
LED Fixture Type	Multi-Bar
LED Features	Manual Dimming Knob, Dimmable *with Controller
Est. Electricity Cost /mo	$38.88
Exact Watts	900 Watts
LED Diode Type	Sanan 3V 3030+Sanan 3535 660nm
PAR Efficiency	2.61-2.71 µmol/J
Total PPF Output	2494 µmol/s
Voltage	120-277 Volt
Power Cord(s) Included	Yes - 240 Volt w/ 120V Adapter
Power Cord Length	10 ft.
Coverage Area	Veg: 5' x 5'; Flower: 4' x 4'
Grow Light Certifications	IP65 Rated, UL Listed, CSA Listed
ETL Listed	No
UL Listed	Yes

1. 1000 Watt LED Grow Lights (14)
2. 900 Watt LED Grow Lights (4)
3. 800 Watt LED Grow Lights (13)
4. 700 Watt LED Grow Lights (29)
5. 600 Watt LED Grow Lights (52)
6. 500 Watt LED Grow Lights (9)
7. 400 Watt LED Grow Lights (16)
8. 300 Watt LED Grow Lights (30)
9. 200 Watt LED Grow Lights (31)
10. 100 Watt LED Grow Lights (27)
11. Under 100 Watt LED Grow Lights (46)

A WELL RESPECTED IC GROWER HAD MENTIONED THIS LIGHT, BELOW ARE HIS PHOTOS,CHEMD
View attachment 19051139 View attachment 19051140
NOTIFICATION ADDED MANUFACTURER TO CHOICES

Fohse

THESE ARE THE 1000 WATT BALLPARK LED OPTIONS WILL BE ADDING MISSING ONES TO POLL

1. AC Infinity (1)
2. Black Dog (1)
3. ChilLED Tech (1)
4. DimLux (1)
5. FloraFlex (1)
6. Growers Choice (1)
7. Iluminar (1)
8. Mars Hydro (2)
9. Photontek Lighting (2)

BEST >>>

Looks like a great choice

I'm thinking about a new LED light

Any thoughts on this light ?

1luvbigherb

 

[acespicoli]

Looks like a great choice

I'm thinking about a new LED light

Any thoughts on this light ?

1luvbigherb

I dont know as much about it as this guy
Independence Farm - Western Foothills of Maine (would be able to tell you more)
He had a real nice grow with it, if the warranty works for you it may be a option

Fohse Product Documents​

Fohse Pisces Spec Sheet

Fohse Pisces Cut Sheet

Looks like research and development is in Japan
It appears production is in China (like many electronics these days)

• Coverage Area
  Veg: 5' x 5'; Flower: 4' x 4'
• Exact Watts
  900 Watts
• LED Light Spectrum
  Full Spectrum
• Total PPF Output
  2494 µmol/s
• PAR Efficiency
  2.61-2.71 µmol/J
• Dimmable:
  with Manual Dimming Knob, with Optional Controller
• LED Diode Type
  Sanan 3V 3030+Sanan 3535 660nm
• Voltage
  120-277 Volt
• Power Cord(s) Included
  Yes - 240 Volt w/ 120V Adapter
• Est. Electricity Cost /mo
  $38.88
• Warranty
  3 Year

This are the the specs to me it comes down to LED

• LED Diode Type
  Sanan 3V 3030+Sanan 3535 660nm

Also of equal importance is the manufacturing quality which is usually echoed thru the warranty
My personal choice would be to look for a 5 year warranty
If you have the voltage and amperage for commercial LED that would open up a wide array of products

a top pick in my mind would be the above 5 YR warranty with a top of the line LED
Another consideration is your country of manufacture which will affect your warranty options
https://led.samsung.com/lighting/mid-power-leds/3030-leds/lm301h-evo/


Some points to consider
Hope its helpful
Also make sure the expense fits your specific need


I have not found a replacement myself for my current LED, still shopping

• #54

The samsung factory warranty is lacking IMO but holding some replacement diodes may be a option
Yeah im still on the fence with the latest LED technology, my last unit MH still works some what
Minus quite a few LED's so ...theres that more parts = more things to go wrong, soldering connections...
Thanks for getting this thread back on track!

Best >>> let me know if you think of anything else, always a pleasure seeing you @bigherb

 

[bigherb]

I dont know as much about it as this guy
Independence Farm - Western Foothills of Maine (would be able to tell you more)

Fohse Product Documents​

Fohse Pisces Spec Sheet

Fohse Pisces Cut Sheet

Looks like research and development is in Japan
It appears production is in China

• Coverage Area
  Veg: 5' x 5'; Flower: 4' x 4'
• Exact Watts
  900 Watts
• LED Light Spectrum
  Full Spectrum
• Total PPF Output
  2494 µmol/s
• PAR Efficiency
  2.61-2.71 µmol/J
• Dimmable:
  with Manual Dimming Knob, with Optional Controller
• LED Diode Type
  Sanan 3V 3030+Sanan 3535 660nm
• Voltage
  120-277 Volt
• Power Cord(s) Included
  Yes - 240 Volt w/ 120V Adapter
• Est. Electricity Cost /mo
  $38.88
• Warranty
  3 Year

This are the the specs to me it comes down to LED

• LED Diode Type
  Sanan 3V 3030+Sanan 3535 660nm

Also of equal importance is the manufacturing quality which is usually echoed thru the warranty
My personal choice would be to look for a 5 year warranty
If you have the voltage and amperage for commercial LED that would open up a wide array of products

a top pick in my mind would be the above 5 YR warranty with a top of the line LED
Another consideration is your country of manufacture which will affect your warranty options
https://led.samsung.com/lighting/mid-power-leds/3030-leds/lm301h-evo/


Some points to consider
Hope its helpful
Also make sure the expense fits your specific need


I have not found a replacement myself for my current LED, still shopping

• #54

Best >>> let me know if you think of anything else, always a pleasure seeing you @bigherb

I appreciate your quick detailed response

Soo you think its a good choice overall but prefer a 5 yr warranty this offers a 3 year

My setup is a 5x5 tent

I'm interested in a Top Quality light not best price

Any other suggestions are welcome and appreciated

1luvbigherb

 

[acespicoli]

For sure brother
ams-osram horticulture as a standout in my mind and likely will revisit that site before making a decision
Hopefully some others critique my response several on this thread are meticulous in the tech study
Driver warranty/quality meanwell is hard to beat pair that with a top line LED for electric to photon efficiency
Then you just need a manufacturer who assembles a quality product and stands behind it.


Will take a little while tonight and think about what your looking for is it 120- 277 V ? USA or EU ?

 

[bigherb]

For sure brother
ams-osram horticulture as a standout in my mind and likely will revisit that site before making a decision
Hopefully some others critique my response several on this thread are meticulous is the tech study
Driver warranty/quality meanwell is hard to beat pair that with a top line LED for electric to photon efficiency
Then you just need a manufacturer who assembles a quality product and stands behind it.


Will take a little while tonight and think about what your looking for is it 120- 277 V ? USA or EU ?

Usa - NYC

Remember the young buck obsessed with Uptown Haze

1luvbigherb

 

[acespicoli]

I do remember the haze discussions and the excellent article and forum questions now that you mention it.

in NYC around my way we say if it anint church it anint fire
more incense and less nonsense

WHICH LIGHT IS RIGHT FOR YOU? These were a thread survey leader ​

SE1000W EVO




SE3000 EVO 300W
NEW

Samsung LM301H EVO
PPE: 2.85umol/J
PPF: 856umol/S
Coverage: 3'x3'(90x90cm)
Size: 23.73″X23.02″X2.8″
Recommended Fan: 4-Inch

SE4500 EVO 320W
NEW

Samsung LM301H EVO
PPE: 2.85umol/J
PPF: 913umol/S
Coverage: 2'x4'(70x140cm)
Size: 45.38''x14.51''x3.03''
Recommended Fan: 4-Inch

SE5000 EVO 480W
NEW

Samsung LM301H EVO
PPE: 2.9umol/J
PPF: 1420umol/S
Coverage: 4'x4'(120X120cm)
Size: 33.6''x33.56''x3.04''
Recommended Fan: 6-Inch

SE7000 EVO 730W
NEW

Samsung LM301H EVO
PPE: 2.9umol/J
PPF: 2146umol/S
Coverage: 4'x4'(120X120cm)
Size: 44.03''x45.38''x3.03''
Recommended Fan: 6-Inch

SE1000W EVO
NEW

Samsung LM301H EVO
PPE: 2.9umol/J
PPF: 2940umol/S
Coverage: 5'x5'(150x150cm)
Size: 44.17″X45.39″X3.08″
Recommended Fan: 6-Inch

SE1200W EVO
NEW

Samsung LM301H EVO
PPE: 2.9umol/J
PPF: 3528umol/S
Coverage: 4‘x6’'(120x180cm)
Size: 67.47''x45.37''x3.02''
Recommended Fan: 2x6-Inch


My last went up 5 foot hit the light laid down on their sides and grew up again SCROG style
With the fast stretch and long haze bloom the dimmer feature is nice, can even switch to HIDs in the end
The first phase of flower even right up to the end, the 1000 might do it for you, very haze econo as well
Many of these lights tick all the boxes I can see why people favor them Ive never personally owned one yet.

Alot of people on this thread didnt have nothing bad to say about Spider Farmer yet so theres that

WARRANTY​

Spider Farmer Five Years Limited Warranty
To receive warranty service, kindly contact Spider Farmer via the information provided on www.....com. Please note that you may need to present proof of purchase (order number or screenshot) as evidence of your eligibility.
Spider Farmer offers warranty service options that are available only in the United States, Canada, United Kingdom, European Union, Australia, Thailand. Please note the following terms and conditions for each option:
1. To return or exchange a product, you must provide proof of purchase, and the product must be returned within 30 days of receipt of goods. Grow Tents must be in their original condition. Spider Farmer will bear the shipping cost for returns or replacements. To initiate the Replace/Return process, please click here. (un-linked)
2. If a defect arises within 2 years of purchase, Spider Farmer will provide free after-sale service. If the product or part returned is ineligible for service, Spider Farmer will charge the authorized amount to the customer’s credit card/Paypal.
3. LED lights purchased between 2 to 5 years ago are eligible for free accessories or a trade-in allowance.


SANLIGHT was the euro top pick it looks almost commercial quality
voltage input and warranty may be issues in the usa

HLG horticultural lighting group had great array of different products lines more info than even the manufacturers provided outright and many DIY kits to aid in those endeavors