LED HPS comparison.

LED or HPS

  • LED

    Votes: 86 71.7%
  • HPS

    Votes: 34 28.3%

  • Total voters
    120

fessie99

Active Member
Thank you for the first hand testimonial that to some growers out there who care about what they are doing Plant Quality comes before electrical efficiency! :peace:
So you are saying if you can put out an ounce of the best weed you have ever smoked for a 500 a month electric bill you will do it?
 

fessie99

Active Member
In practice. De hps outperforms everything. Haven’t seen enough 1k de cmh to compare.
and you don't want to Utah State studied a 315 from Philips and not the 4200 and definitely not any of the other knockoffs that have came after
 

fessie99

Active Member
De hps has more plant useable light than any other fixture on the market afaik In a 5x5 space. Uv and ir have been proven to increase potency up to 20%. I don’t care what any of you bro sciencers think about your lights. Real facts and data are what I’m interested in and I have yet to see a single all white led panel do what a single 1k de hps or cmh bulb can. I run all These lighting types. I tested all of hlgs stuff in prototype. I actually have tried and tested all These, I don’t just go by what I read here. And I’m not talking about watt increasing efficiency because I don’t care about that. I want more light in my space and more weed that the most potent it can be. Maybe that’s where the difference lies. Most just care about what their plants look like. And white leds are a significant amount easier to keep plants healthy under than hids. I think if most guys could keep their plants healthy they’d understand generally light isn’t the limiting factor, but things like uv can change potency A LOT in weed, regardless of how pretty you grow it. Genetics are genetics.
This is why we are trying to convince you that using one wavelength is stupid we care about you too
 

fessie99

Active Member
Yeah but its $1700. Ive had the 1700e for 7 months.

You could almost buy 2 HLG 650Rs for that price. I got my Gavita 1700e for $1100 on sale

I got my 1150w Gavita for $450.
Bulb for 1000w Hortilux HPS is $60. Whole set up for $350.

IMHO all of the best LED are way overpriced. Its one reason I didnt buy one for so long. For the money I still like the 1000w Hortilux. I can get 3200umol of light for $700 for a comple set up. And if you take of 10% initial light loss, thats still 2900umol

Phillips makes a Toplight Compact that draws 630w, and puts out 1800umol, but they will only sell them in lots of 40, for $32,000. $800 each if ya got $32,000.

Nothing beats HID for the $$$$$
Yes but they don't last and the market bears what the market bears no one will pay $1000 dollars for an hps setup because they now that it's not worth it if people would quit buying overpriced lights the price would come down what are we 10% of customer base I would hate to see the price of the first oled grow light with that being said Samsung has an 301h white and a 301h red as far as I know there is not a more efficient diode you can buy these diodes in an American made pcb for 100 bucks as long as they don't connect the driver and put hangers on it
 

Norml56

Well-Known Member
A light is a light just because it less efficient doesn't mean we don't compare hps does have many advantages it has just been passed up just like all are leds now will be I just don't see why everyone with the exact same goal can argue so much over an industry that really doesn't care about us and all products are tested and output is recorded I a side note an hps has a lifespan of one or two grows cost 100 bucks approximately same as a Diablo in process of having a high dollar heat sink made with a proper thermal interface we are going to see what Samsung is made of at this price point I will melt those LEDs right to the board lol
I agree. I guess the point I was trying to make is if we are comparing HID to LED and which one people should choose we should be comparing a HID that is a closer rival to a top of the line LED. IMO CMH is the best possible SE HID bulb when it comes to spectrum, heat, price, and longevity.
 
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PSUAGRO.

Well-Known Member
People forgetting about reflector losses when throwing out bare bulb numbers

People forgetting that mh/hps/cmh bulb dont emit any significant UV due to OSHA standards. Don't think workers are required to use sunscreen indoors:-P.

Cmh, the original Philips retrowhite was for swapping mag hps and creating a better , "whiter "work environment. Not giving skin cancer .. same with the all start line, elite agro 315, and so on.

Their are some specially hid bulbs with a quartz outer envelope that allows UV to pass. Their are some Chinese knock off cmh bulbs that put out too that don't give a fuck about lawsuits.

Led output is directional not Omni.... Captain obvious when looking at umol/s
 

jimihendrix1

Well-Known Member
We use 2x Solacure 32w Flower Power UVA/B bulbs per each 1000w unit, or equivalent in a 4 x 4 area..

These bulbs are also the strongest made down to 280nm. They also have a built in reflector of their own..
These are also overbuilt, and can be run as high as 80w, but theres no need for it.

They have the best glass in the business, and have been making bulbs since the 80s.
20x more powerful than the best Reptile bulbs Which is the Arcadia Desert Dragon 54w. 32w Flower Power blows it out of the water. And goes down to 280nm.


Our lamps are 20x stronger than reptile bulbs, and produce high levels of the full UVB spectrum, 280-320nm, not just 300nm-320nm like every other bulb Only Flower Power produces high levels of 280-300nm UVB. You can see the spectrum yourself on the lamp page. This might not seem like a big deal to those unfamiliar, but the most important trigger for cannabis is the UVR8 protein, a protein common to many plants and acts as a chemical messenger to tell the plant it is in high UVB and should react accordingly. In the case of cannabis, this means to jump up protection of THC, which the plant uses as sun block


UV-B resistance 8 (UVR8) also known as ultraviolet-B receptor UVR8 is an UV-Bsensing protein found in plants and possibly other sources.[2] It is responsible for sensing ultraviolet light in the range 280-315 nm and initiating the plant stress response. It is most sensitive at 285nm, near the lower limit of UVB. UVR8 was first identified as a crucial mediator of a plant's response to UV-B in Arabidopsis thaliana containing a mutation in this protein. This plant was found to have a hypersensitivity to UV-B[3] which damages DNA. UVR8 is thought to be a unique photoreceptor as it doesn't contain a prosthetic chromophore but its light-sensing ability is intrinsic to the molecule.[4] Tryptophan (Trp) residue 285 has been suggested to act the UV-B sensor, while other Trp residues have been also seen to be involved (Trp233 > Trp337 > Trp94) although in-vivo data suggests that Trp285 and Trp233 are most important.[2]



Product Description

This is the ultimate growers UVB light, many times stronger than our other UVB lamps, and infinitely stronger than reptile lights or other makeshift lights. This is the real deal, dispensary tested, proven lab results up to 40% higher THC than not using any supplemental UVB. We guarantee you 20% better results the first season, and 30% or more once you get dialed into using the maximum amount possible. No one else guarantees results like this, but we can.





Specifications:

FR40T12 multi-wattage, multi-peak UVB/UVA horticultural lamp.
Wattage: 32-40 watts standard, can be run as high as 80w for special applications.
Color: white to violet. Color temperature >10,000K
Dimension: 4 foot by 1.5 inches. Will fit almost any shop light.
Reflector: Built inside the lamp. No external reflector needed.
UVA/B: 5x the power of the SG-1 and Universal UV. About 20 to 50x the power of reptile lights.
UVA/B rating: Equivalent to a 30% UVB lamp, but we do this in very different frequencies, so they don't equate.
Life: 1000 hours at 70% of original power.

From the ground up, this lamp was engineered to do nothing but operate as a horticultural lamp. It can operate as low as 25 watts and as high as 80 watts, but is centered to us a standard 4 foot 32w fixture and it's own timer. It is four foot long, 1.5" in diameter, so it can be used in virtually every 4 foot fixture at the hardware store. Our entire goal was to make it simple and cheap to operate. All the really interesting things are happening inside the lamp, not in the fixture.

Again we licensed Sol Glass for this lamp, like our SG series lamps. It is more transparent to any other UV glass made, and allows transmission of UVB between 280nm and 300nm, something other lamps don't do well. This is one reason our lamps have been so successful in the labs, testing for resin/flavonoids/terpenes/THC. The new spectrum uses many of the same spectral peaks as the SG, but are 3 to 4 times stronger in the UVB, while still having a solid UVA profile. UVA is seldom discussed in many circles, and it is too large a topic to discuss here, but we design our lamps with a sun similar UVA spectrum because we have good reason to think it is also very beneficial for UV started plants. The UVA to UVB ratio is very different than the sun, however, as the effective ratio is about 4 times higher than the sun. This is why you can use half as many lamps and still get twice as much UVB. In short, you use few lamps farther from from your plants. This makes using them easier and cheaper for you, while being more effective. It is hard to overstate how big a leap this lamp is.

Cutaway of RUVA UVB horticultural lamp

Like most Solacure lamps, the Flower Power has a built in reflector, so you don't need to worry about using reflective material with it. Mylar, white paint, all these absorb UV anyway, they are useless for reflecting it. The image on the left shows a regular lamp, the image on the right is how the Flower Power is designed, with an internal reflector. It forces all the light to go in one direction, making designing and installing a system much easier. This means the lamp has about 50% more total UV output than a non-reflector design with a home made reflector.

For all flowering plants (including fruits and vegetables) grown indoor or in a greenhouse environment. The exact amount of UV needed for each plant will vary, and must be determined by the grower. To offer enhanced UVB, most growers will use two of the Flower Power lamps for every 1000w HPS/MH or equivalent. Obviously these will work on cannabis and are designed to maximize the UVB needs of the buds, but it was designed to be a greenhouse light and to provide the missing UVB for any plant.

How to use these lamps
Use two Flower Power lamps per 1000w hood, one on each side for even coverage, 12" to 24" from the plants (farther is weaker so needs to be run longer, but covers a larger area). Run 1 to 4 times per day, 1 to 6 hours per cycle for up to 12 hours (single cycle). How much depends on your particular plants, so start with 2 to 4 hours and work your way up, looking out for burned edges. The goal is to stress the plants, push them, without damaging them. Only run during your day cycle. Use during flowering and fruiting stage. Also proven to suppress mold and mildew as well as discourage many insects.

Another method that is claimed to produce higher CBD is the "Pulse Method". You run them 15 minutes on, 45 minutes off. This will shorten lamp life somewhat, but will still get you 2 flowering seasons worth of use. These claims have been made by a few professional growers. Most tests that instead run the UVB continuously for several hours have shown to not dramatically affect CBD production (flat to slightly higher).

Already certified to get 20% to 35% higher THC and flavonoids and anecdotal evidence that approaches 40% higher, and results keep coming in.



This shows the Flower Power in Standard F32 mode (22 watts, lower image) and in dual F32 mode (HO mode, ~40 watts, top image). Note the lamps aren't exceptionally bright because we don't use visible phosphors. All the power is going to the ultraviolet range, which is invisible to your eyes. This is one reason Flower Power lamps deliver 10x the UV when comparing to other lamps, watt per watt.

Output as measured with a hand held UV meter at 312nm (not the strongest peak for these lamps)
2 foot Flower Power F20
20w, measured dead to lamp: 1450mW/cm2 (normal F20 fixture)
10w, measured dead to lamp: 750mW/cm2


4 foot Flower Power F40
40w, measured dead to lamp: 1400cm2
20w, measured dead to lamp: 800mW/cm2 (normal F32 fixture)

Please note that UV output varies radically based on temperature, now long the lamp has been on, how old the lamp is. These are useful for comparing to our other lamps, but no so much for comparing to other lamps.

Misc info FR40 version: (20w @ 12"/.3m distance)
Note that this is running in the LOWEST power mode and some measurements will seem odd because they are based on visible light and almost no output of this lamp is in the visible range.
Peak Wavelength: λp=352nm
Dominant WaveLength: λd 469.21nm (visible only)
Ee=3497.1300mW/m2
PPFD=1.31 umol/m2*s
J=0.3497mJ/cm2
Candle E=5.28Fc (virtually no ouput is in visible range)
CCT Tc=1,750,000.0K
Spectrometer: SRI-2000-UV (Optimum Optoelectrics Corp, Canada)
 
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Norml56

Well-Known Member
People forgetting about reflector losses when throwing out bare bulb numbers

People forgetting that mh/hps/cmh bulb dont emit any significant UV due to OSHA standards. Don't think workers are required to use sunscreen indoors:-P.

Cmh, the original Philips retrowhite was for swapping mag hps and creating a better , "whiter "work environment. Not giving skin cancer .. same with the all start line, elite agro 315, and so on.

Their are some specially hid bulbs with a quartz outer envelope that allows UV to pass. Their are some Chinese knock off cmh bulbs that put out too that don't give a fuck about lawsuits.

Led output is directional not Omni.... Captain obvious when looking at umol/s
Hortilux is the only company I've seen selling a CMH bulb that allows UV light to get thru.
 

fessie99

Active Member
We use 2x Solacure 32w Flower Power UVA/B bulbs per each 1000w unit, or equivalent in a 4 x 4 area..

These bulbs are also the strongest made down to 280nm. They also have a built in reflector of their own..
These are also overbuilt, and can be run as high as 80w, but theres no need for it.

They have the best glass in the business, and have been making bulbs since the 80s.
20x more powerful than the best Reptile bulbs Which is the Arcadia Desert Dragon 54w. 32w Flower Power blows it out of the water. And goes down to 280nm.


Our lamps are 20x stronger than reptile bulbs, and produce high levels of the full UVB spectrum, 280-320nm, not just 300nm-320nm like every other bulb Only Flower Power produces high levels of 280-300nm UVB. You can see the spectrum yourself on the lamp page. This might not seem like a big deal to those unfamiliar, but the most important trigger for cannabis is the UVR8 protein, a protein common to many plants and acts as a chemical messenger to tell the plant it is in high UVB and should react accordingly. In the case of cannabis, this means to jump up protection of THC, which the plant uses as sun block


UV-B resistance 8 (UVR8) also known as ultraviolet-B receptor UVR8 is an UV-Bsensing protein found in plants and possibly other sources.[2] It is responsible for sensing ultraviolet light in the range 280-315 nm and initiating the plant stress response. It is most sensitive at 285nm, near the lower limit of UVB. UVR8 was first identified as a crucial mediator of a plant's response to UV-B in Arabidopsis thaliana containing a mutation in this protein. This plant was found to have a hypersensitivity to UV-B[3] which damages DNA. UVR8 is thought to be a unique photoreceptor as it doesn't contain a prosthetic chromophore but its light-sensing ability is intrinsic to the molecule.[4] Tryptophan (Trp) residue 285 has been suggested to act the UV-B sensor, while other Trp residues have been also seen to be involved (Trp233 > Trp337 > Trp94) although in-vivo data suggests that Trp285 and Trp233 are most important.[2]



Product Description

This is the ultimate growers UVB light, many times stronger than our other UVB lamps, and infinitely stronger than reptile lights or other makeshift lights. This is the real deal, dispensary tested, proven lab results up to 40% higher THC than not using any supplemental UVB. We guarantee you 20% better results the first season, and 30% or more once you get dialed into using the maximum amount possible. No one else guarantees results like this, but we can.





Specifications:

FR40T12 multi-wattage, multi-peak UVB/UVA horticultural lamp.
Wattage: 32-40 watts standard, can be run as high as 80w for special applications.
Color: white to violet. Color temperature >10,000K
Dimension: 4 foot by 1.5 inches. Will fit almost any shop light.
Reflector: Built inside the lamp. No external reflector needed.
UVA/B: 5x the power of the SG-1 and Universal UV. About 20 to 50x the power of reptile lights.
UVA/B rating: Equivalent to a 30% UVB lamp, but we do this in very different frequencies, so they don't equate.
Life: 1000 hours at 70% of original power.

From the ground up, this lamp was engineered to do nothing but operate as a horticultural lamp. It can operate as low as 25 watts and as high as 80 watts, but is centered to us a standard 4 foot 32w fixture and it's own timer. It is four foot long, 1.5" in diameter, so it can be used in virtually every 4 foot fixture at the hardware store. Our entire goal was to make it simple and cheap to operate. All the really interesting things are happening inside the lamp, not in the fixture.

Again we licensed Sol Glass for this lamp, like our SG series lamps. It is more transparent to any other UV glass made, and allows transmission of UVB between 280nm and 300nm, something other lamps don't do well. This is one reason our lamps have been so successful in the labs, testing for resin/flavonoids/terpenes/THC. The new spectrum uses many of the same spectral peaks as the SG, but are 3 to 4 times stronger in the UVB, while still having a solid UVA profile. UVA is seldom discussed in many circles, and it is too large a topic to discuss here, but we design our lamps with a sun similar UVA spectrum because we have good reason to think it is also very beneficial for UV started plants. The UVA to UVB ratio is very different than the sun, however, as the effective ratio is about 4 times higher than the sun. This is why you can use half as many lamps and still get twice as much UVB. In short, you use few lamps farther from from your plants. This makes using them easier and cheaper for you, while being more effective. It is hard to overstate how big a leap this lamp is.

Cutaway of RUVA UVB horticultural lamp

Like most Solacure lamps, the Flower Power has a built in reflector, so you don't need to worry about using reflective material with it. Mylar, white paint, all these absorb UV anyway, they are useless for reflecting it. The image on the left shows a regular lamp, the image on the right is how the Flower Power is designed, with an internal reflector. It forces all the light to go in one direction, making designing and installing a system much easier. This means the lamp has about 50% more total UV output than a non-reflector design with a home made reflector.

For all flowering plants (including fruits and vegetables) grown indoor or in a greenhouse environment. The exact amount of UV needed for each plant will vary, and must be determined by the grower. To offer enhanced UVB, most growers will use two of the Flower Power lamps for every 1000w HPS/MH or equivalent. Obviously these will work on cannabis and are designed to maximize the UVB needs of the buds, but it was designed to be a greenhouse light and to provide the missing UVB for any plant.

How to use these lamps
Use two Flower Power lamps per 1000w hood, one on each side for even coverage, 12" to 24" from the plants (farther is weaker so needs to be run longer, but covers a larger area). Run 1 to 4 times per day, 1 to 6 hours per cycle for up to 12 hours (single cycle). How much depends on your particular plants, so start with 2 to 4 hours and work your way up, looking out for burned edges. The goal is to stress the plants, push them, without damaging them. Only run during your day cycle. Use during flowering and fruiting stage. Also proven to suppress mold and mildew as well as discourage many insects.

Another method that is claimed to produce higher CBD is the "Pulse Method". You run them 15 minutes on, 45 minutes off. This will shorten lamp life somewhat, but will still get you 2 flowering seasons worth of use. These claims have been made by a few professional growers. Most tests that instead run the UVB continuously for several hours have shown to not dramatically affect CBD production (flat to slightly higher).

Already certified to get 20% to 35% higher THC and flavonoids and anecdotal evidence that approaches 40% higher, and results keep coming in.



This shows the Flower Power in Standard F32 mode (22 watts, lower image) and in dual F32 mode (HO mode, ~40 watts, top image). Note the lamps aren't exceptionally bright because we don't use visible phosphors. All the power is going to the ultraviolet range, which is invisible to your eyes. This is one reason Flower Power lamps deliver 10x the UV when comparing to other lamps, watt per watt.

Output as measured with a hand held UV meter at 312nm (not the strongest peak for these lamps)
2 foot Flower Power F20
20w, measured dead to lamp: 1450mW/cm2 (normal F20 fixture)
10w, measured dead to lamp: 750mW/cm2


4 foot Flower Power F40
40w, measured dead to lamp: 1400cm2
20w, measured dead to lamp: 800mW/cm2 (normal F32 fixture)

Please note that UV output varies radically based on temperature, now long the lamp has been on, how old the lamp is. These are useful for comparing to our other lamps, but no so much for comparing to other lamps.

Misc info FR40 version: (20w @ 12"/.3m distance)
Note that this is running in the LOWEST power mode and some measurements will seem odd because they are based on visible light and almost no output of this lamp is in the visible range.
Peak Wavelength: λp=352nm
Dominant WaveLength: λd 469.21nm (visible only)
Ee=3497.1300mW/m2
PPFD=1.31 umol/m2*s
J=0.3497mJ/cm2
Candle E=5.28Fc (virtually no ouput is in visible range)
CCT Tc=1,750,000.0K
Spectrometer: SRI-2000-UV (Optimum Optoelectrics Corp, Canada)
I have an agromax pure uv kinda slacked on research are these better
 

FADING-SILHOUETTE

Well-Known Member
Ive grown with all sorts of lighting.. Including CFL, 1st gen Blurple LED, HPS, MH,CMH, and most recently LED COBs with supplemental deep and far red, and UVA & UVB and 365nm to boot. I vegged her for 6 months in a 3x3x7 and she is huge !!!

I used to swear by a 600w HPS...and to be fair they are still great...but LED means smaller fans, less noise, better spectrum and no need for expensive reflectors and ballasts that can take up a crap load of space...or need additional cooling.. For a fraction of the wattage / running cost .. I can get similar result from my current LED setup running 550w.. ..That only 50w less than the 600 but am running 19 seperat led fixtures as apposed to jus 1x HPS..

The plus side to HPS is the intensity...but if you dont care how messy or crouded an LED rig can get..and like me its purely personal smoke... Then you can arrange the LED lamps etc.. In a way that LED penetration is no longer an issue on bigger plants..

So LED gets my vote...but only new/next gen LED not blue purple chinese crap that kills your eyes and doesnt give good results at all...blurples suck imo..

I am interested in the progression of LED Horticultural lighting...when that intencity is increased...I am sure HPS and other HID lighting will become a thing of yesteryear..

As it stands though LED is my preference for a non commercial 3x3 grow - STELTHY :leaf:
20200419_150111.jpg20200505_164538.jpg20200505_165237.jpg
20200419_150111.jpg

Nearly time for Harvest #550w LED - STELTHY :leaf:20200505_164954.jpg
 
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end_of_the_tunnel

Well-Known Member
For the posters above, maybe look at the video Migro put up in early December on this product. It was an onsite visit to a UK hemp and herb experiment. Expect it is a bit pricey and overpowered for indoor application.

http://www.ceravision.com/products/UV420-Plasma-Grow-Light


I feel like the context of led -hps should be viewed with regards to implimentation of cultivation method. If you were a grower from the overgrow days your outlook and grow method would be heavily influenced to one style. Time and labour intensive in terms of keeping a plant in tip top condition with a long vegetative period.

Someone coming from a different background would focus on turnover and do something like this. Apparently 27 inches/ 700mm between decks.


I saw a profile pick online somewhere. The guy proudly put himself in shot under his expensive led lights, standing in the isle between his pre-flower plants. The canopy was slighty above his head. But two thirds of the plants height was bare defoliated stalk. WTF! The green started by his head. Perfect for a meme. If ever there was an example how not utilise any kind of light, that was it.
 

fessie99

Active Member
For the posters above, maybe look at the video Migro put up in early December on this product. It was an onsite visit to a UK hemp and herb experiment. Expect it is a bit pricey and overpowered for indoor application.

http://www.ceravision.com/products/UV420-Plasma-Grow-Light


I feel like the context of led -hps should be viewed with regards to implimentation of cultivation method. If you were a grower from the overgrow days your outlook and grow method would be heavily influenced to one style. Time and labour intensive in terms of keeping a plant in tip top condition with a long vegetative period.

Someone coming from a different background would focus on turnover and do something like this. Apparently 27 inches/ 700mm between decks.


I saw a profile pick online somewhere. The guy proudly put himself in shot under his expensive led lights, standing in the isle between his pre-flower plants. The canopy was slighty above his head. But two thirds of the plants height was bare defoliated stalk. WTF! The green started by his head. Perfect for a meme. If ever there was an example how not utilise any kind of light, that was it.
vegging long like that can be difficult I don't like to especially if you do crash it's big happened to me on a 3 month veg
 
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