Do you have a mammoth mint 8 or HLG scorpion Diablo X? Post here!

This is all the 6 bar - 680w mint white

Also you can check my posts here, I posted grow journals.

Awesome!
Thanks for the update, great pics and you got it going on - very nice...
I'm SURE @TheChemist77 will be all over the search queries here.
Frosty!!!

Today Mammoth emailed to say my order would slip another 4 weeks. I asked for a refund. I've been more than patient.

CWF said:

Today Mammoth emailed to say my order would slip another 4 weeks. I asked for a refund. I've been more than patient.

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I wish people would quit the import thing and build more stuff here - it'll never change until the mentality does.
Sorry to hear that and I hope they can take care of you before it gets worse!

sfw1960 said:

Probably!
UV LEDs are all inefficient and they all burn out faster than fast.
I run regular 365 nm UVA during seedling stage and after that b0llzOut with white.
Old white too lol!

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Could you expand on results of 365 in seedling stage? Or reasoning why? Not trying to challenge just curious.

UV around 385-405nm us actually not that inefficient anymore, if you go for diodes in the 1.5-2.5$ range and mount them yourself to pcbs/ledstars you can get good output.

Playing with the idea of trying 5000k 90cri + 405nm as base and 680/730nm on a separate channel for veg/seedling. Looking for input re uv/near uv in vegg.

Rocket Soul said:

Could you expand on results of 365 in seedling stage? Or reasoning why? Not trying to challenge just curious.

UV around 385-405nm us actually not that inefficient anymore, if you go for diodes in the 1.5-2.5$ range and mount them yourself to pcbs/ledstars you can get good output.

Playing with the idea of trying 5000k 90cri + 405nm as base and 680/730nm on a separate channel for veg/seedling. Looking for input re uv/near uv in vegg.

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Sure - but it's probably not beneficial for your research.
Only ONE reason really. Most of the time I have our runs going during the colder temps/season and I have to deal with heating the cold spaces and increasing the humidity because it's so dry & cold.
(Opposed to the AC going nuts during warmer WX, it's the best choice for me.)
The UVA is only run in the earlier stages for it's slightly helpful disinfectant qualities. Having to hit the heat fairly hard and high humidity is a recipe for bad things on the little ones. I run it nearly or continuous for the first several days and back off the time period to a few hours or less once they get a bit established.
Its only a 15w tube but it appears to negatively affect them if left on for long periods. IDK if I'm just a crummy gardener or something, but my greatest struggles are the earliest days of their journey to jars.
Probably not very helpful your experimentation and research though?


For @TheChemist77 and others interested - I asked mammoth where's the product made - here's the body of the reply:

<We are headquartered in upstate NY and warehouse/design here and cali. We build overseas/china. Same model as Apple and others...we actually build right next to apple's foxconn.

Let us know if you need anything else. >

So if made in USA or other country is important to you, consider the other options.
I realize many people have the thoughts of "you're never going to change that" and just buy the cheapest bidder but unless we insist on something better, it never will change.
The politicians and government have sold the country and average guy down the river for their own personal gains and few companies try to fight "the norm" with the worst part being the prices are too high on an import that used to have a large profit margin - it's gone and we've all been cornered into lower quality items and increased prices with lower profit for the companies that aren't going to survive...
Sure the components are imported from the asians too but that's because the manufacturing is nearly non-existent here stateside so it has to change in order to have competition that's not here either.
Everyone already knows what happens when you have a failure and repair requires new specialty parts and they're not readily available here - the CV pandemic gave us a grave reminder, but it's BACK to bidnizz as usual, right?

I use an HLG Red Spec 300. It works very well. I like their products and I really like that HLG kind of evolved from discussions on this website....Robin, Growmau5, Stephen and a few other experts were coming up with their ideas right here.

EDIT: But the bottom line is that almost ANY light will grow weed. You're going to be paying for things like the latest chips and the quality of the components, the warranty and also the integrity of the company. There will never be the one, perfect spectrum for all weed varieties. That's why I believe the future of lighting will be lights with separate channels that will allow the grower to dial in whichever spectrum they find works best for their particular varieties of weed.

UVA does not disinfect. Any light that disinfects is also going to damage plants while having 0 effect in the shadows, thus having incomplete (read: useless) disinfection.

It's "funny" how the modern, hybrid weed has evolved to be less flavorful and ho-hum quality, even though the technology to grow it has evolved to be the highest quality. If you go back in time, you will almost always find that the historically-best weed happened when the technology to grow it was comparatively low! I've smoked weed grown from the old landrace Mexican blueberry/skunk bag seeds, under fluorescent shop lights, that would shame anything today.

You are right! The old skunk and many other old kick ass strains have become shit! I wonder why cause as you’ve said the way we grow today is far more efficient especially organic stuff. Just lost the good genes or phenomena types over the years I guess? Maybe somebody could tell us why this is true?
as for mammoth being made in china,,,it’s upsetting,,however nothing we buy is truly America first sadly. All the parts and chips are just assembled here! However most American companies do have superior warranty policies. More to think about,,,,and just when I had my mind kind of made up! As much as made in USA means I still would never buy california light works, I got fucked by them in the past! I know many of you like their products so to each his own on that!

You are right! The old skunk and many other old kick ass strains have become shit! I wonder why cause as you’ve said the way we grow today is far more efficient especially organic stuff. Just lost the good genes or phenomena types over the years I guess? Maybe somebody could tell us why this is true?
as for mammoth being made in china,,,it’s upsetting,,however nothing we buy is truly America first sadly. All the parts and chips are just assembled here! However most American companies do have superior warranty policies. More to think about,,,,and just when I had my mind kind of made up! As much as made in USA means I still would never buy kind led

Had to add zipties to my mammoths today.

Also what is the deal with the add on u v bars? Worth it? Also I have iguanas that require u v rays would these bars work for them? Right now I use old type u v bulbs and mercury vapor bulbs for them. Anyways benifits from adding u v ? And run all the time or just in the end of flowering? I’ve heard running them continuously causes more harm than good? So any info appreciated!

TheChemist77 said:

Also what is the deal with the add on u v bars? Worth it? Also I have iguanas that require u v rays would these bars work for them? Right now I use old type u v bulbs and mercury vapor bulbs for them. Anyways benifits from adding u v ? And run all the time or just in the end of flowering? I’ve heard running them continuously causes more harm than good? So any info appreciated!

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If you like to monstercrop they are great LOL I've run with and without UVA bars and see no discernible difference.

Lou66 said:

UVA does not disinfect. Any light that disinfects is also going to damage plants while having 0 effect in the shadows, thus having incomplete (read: useless) disinfection.

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Really?

Why do they use it in barbershops, dentists and doctors offices?
(It must be fake like alcohol doesn't disinfect either it kills cells)
I guess this isn't the thread to debate it - I just answered the question @Rocket Soul asked for his interest.

curious2garden said:

If you like to monstercrop they are great LOL I've run with and without UVA bars and see no discernible difference.

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Aha!
I finally got the answer from you in a sNeeKY pEtE kinda way lol!

I'll let you pass that info to the other folks that bought them or are considering it.

OK I'm outy before I get scolded or something...( Just trying to be slightly helpful like 365 nm...)
I'm not made in china at least...
Party on people and Happy Friday!

sfw1960 said:

Really?

Why do they use it in barbershops, dentists and doctors offices?
(It must be fake like alcohol doesn't disinfect either it kills cells)
I guess this isn't the thread to debate it - I just answered the question @Rocket Soul asked for his interest.


Aha!
I finally got the answer from you in a sNeeKY pEtE kinda way lol!

I'll let you pass that info to the other folks that bought them or are considering it.

OK I'm outy before I get scolded or something...( Just trying to be slightly helpful like 365 nm...)
I'm not made in china at least...
Party on people and Happy Friday!

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@Lou66 is correct on that UVC use for disinfection not UVA. @sfw1960 I monstercropped them because I had my timer fouled up so my plants were getting 16 hours of light. The extra 4 were from my UVA bar and were quite dim but enough to keep them in perpetual flower and keep bulking so when @Laughing Grass saw the reveg she let me know I turned the timers so they were within the 12 hour window and I got a huge crop. Nothing UVA had to do with it really. Just me fucking up a timer.

curious2garden said:

@Lou66 is correct on that UVC use for disinfection not UVA. @sfw1960 I monstercropped them because I had my timer fouled up so my plants were getting 16 hours of light. The extra 4 were from my UVA bar and were quite dim but enough to keep them in perpetual flower and keep bulking so when @Laughing Grass saw the reveg she let me know I turned the timers so they were within the 12 hour window and I got a huge crop. Nothing UVA had to do with it really. Just me fucking up a timer.

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Dim to the human eyes but very visible to the plants...
I do know UVC is used for disinfection because that wavelength range is far more capable of killing bacteria and germs in a much shorter exposure time.

We replaced our HVAC system a yr ago - they're hawking UVC disinfection systems for better air quality, I declined figuring around $9000 was enough just to replace it.
I considered adding it myself as well as a whole home humidifier - again sorry for the thread derailment.

TheChemist77 said:

Also what is the deal with the add on u v bars? Worth it? Also I have iguanas that require u v rays would these bars work for them? Right now I use old type u v bulbs and mercury vapor bulbs for them. Anyways benifits from adding u v ? And run all the time or just in the end of flowering? I’ve heard running them continuously causes more harm than good? So any info appreciated!

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If they would work you would know it. Many people tested many different types and yea... The benefit is still unclear. If it was concrete benefit we wouldn't be discussing if it was useful but rather how was optimal.

sfw1960 said:

Dim to the human eyes but very visible to the plants...
I do know UVC is used for disinfection because that wavelength range is far more capable of killing bacteria and germs in a much shorter exposure time.

We replaced our HVAC system a yr ago - they're hawking UVC disinfection systems for better air quality, I declined figuring around $9000 was enough just to replace it.
I considered adding it myself as well as a whole home humidifier - again sorry for the thread derailment.

Ultraviolet A light effectively reduces bacteria and viruses including coronavirus - PMC

Antimicrobial-resistant and novel pathogens continue to emerge, outpacing efforts to contain and treat them. Therefore, there is a crucial need for safe and effective therapies. Ultraviolet-A (UVA) phototherapy is FDA-approved for several ...

www.ncbi.nlm.nih.gov

View attachment 5380109

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Did you read that study? They prove exactly what im saying. The areas that received less than ideal amounts of radiation are unaffected. That is with 20 W/m² UV radiation. So 40-100 W eletrical power per m². Everything further than 1 cm from the diode was unaffected. Some cells they tested were completely unaffected, even at 50 W/m².

sfw1960 said:

Dim to the human eyes but very visible to the plants...
I do know UVC is used for disinfection because that wavelength range is far more capable of killing bacteria and germs in a much shorter exposure time.

We replaced our HVAC system a yr ago - they're hawking UVC disinfection systems for better air quality, I declined figuring around $9000 was enough just to replace it.
I considered adding it myself as well as a whole home humidifier - again sorry for the thread derailment.

Ultraviolet A light effectively reduces bacteria and viruses including coronavirus - PMC

Antimicrobial-resistant and novel pathogens continue to emerge, outpacing efforts to contain and treat them. Therefore, there is a crucial need for safe and effective therapies. Ultraviolet-A (UVA) phototherapy is FDA-approved for several ...

www.ncbi.nlm.nih.gov

View attachment 5380109

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Your article is about phototherapy not disinfection. Here you go, this would have been the article to use to make your point.

I would have then replied to you, but LOOK at the plate exposure times required!