For anyone that says lec lights don't compare to hps

Humple said:
Here in Michigan, dispensaries may only be supplied (indirectly) by a licensed grower. That grower may not be a caregiver (but must have been a caregiver for two years). Caregivers may not sell overages or supply product to anyone other than their own patients. Basically, if you want to legally make money by growing weed, you have to drop your patients. There are a lot of good caregivers who refuse to do that to the people who rely on them. It's a fucked up system. It would have been so much simpler (and more beneficial) if the caregivers had been allowed to sell overages from the very beginning. But our legislators have shit for brains, so fucked we all are...
Click to expand...
Not to change the subject but how many of us Michigan Caregivers really relied on the dispensaries buying out our overages? Didnt really affect me as I got out of the overages to dipsensary thing a few years back...but I always knew in the back of my mind that it was always there if i got into a financial pinch. I do remember back in early '09 - 11 that I sold a shit ton of overages to like the 3 or 4 disp here in town. I was rolling like a stone. Then i got out of that. Bit friends kept going and now they dont like the new rules one bit. And cant afford the bucks and legal loophole to be a disp only provider. Sorry to throw op topic off. Carry on.
 
CobKits said:
i thought CMH was more like 1.4 umol/J
Click to expand...
I read 1.8 but that may be total w/o reflector losses.
Either way, you catch my drift right?
The best led light would be the one made Hybrid w/ a HPS on the middle I feel.
Or maybe that new red MH supplement bulb I saw in a mag. this week.
 
probably. in same way that DE hps is 2.1 at bulb but really 1.7 to canopy

i think the 1.4 was Bugbee flat plane integration number?
 
Did they even have these CMH bulbs back then? I thought he only compared a few HPS fixtures and several led fixtures.

Flat plane integration tends to come out higher than sphere tests. For DE HPS up to 1.9umol/J instead of 1.7. As low as 1.4/umol/J too for less efficient reflectors though.
 
Hybridway said:
Hey, you're back. Welcome back Olive.
Efficiency is a facade IMO based on how they figure it for growing MJ.
Calling one light more or less efficient then the next w/o taking nm's outside of 400-700 into account is bogus. Like saying HPS is any less efficient then led. Maybe for household lighting or Warehouses but our plants desperately need 350-380nm as well as 700-860+ nm's which is what we get from our HPS & LEC that we're not getting from our LEDs. Hence the difference in bud size & leaf thickness. Not to mention, old SE HPS is around 120-150 lm/w too & now there's a new one @ 170.
Look at the spectrum of the CMH. Even @ 1.8 Umol/J, it might as well be 2.5 cuz of the needed IR spike.
You still growing?
Click to expand...
^ This. UV is proven to have an effect on trichome/cannabinoid production, which is often overlooked by indoor growers. I remember years ago speaking to an industrial hemp grower who was having problems with local regulators, as the Industrial Hemp Act at the time stipulated a THC cutoff point of 0.5% for all hemp production - over that level, and it was was considered a drug cultivar. The problem was that the grower had sourced his hemp seed stock from China, where it had tested around 0.2-0.3% THC. However, as soon as he started growing it in Australia, where UV levels where higher, the same seed stock started to test 0.6-0.8% and higher. This was explained to the government authorities - that THC levels vary in hemp in relation to environmental conditions - and the solution was to mandate 0.5% seed-stock but no higher than 1.0% final production cutoff to recognise environment conditions outside a grower's control.

This is now all in official guidelines here: https://www.foodstandards.gov.au/code/applications/documents/A1039_SD5.pdf

If anyone ever wants to argue UV does not affect cannabinoid production, go talk to a hemp farmer.
 
Prawn Connery said:
^ This. UV is proven to have an effect on trichome/cannabinoid production, which is often overlooked by indoor growers. I remember years ago speaking to an industrial hemp grower who was having problems with local regulators, as the Industrial Hemp Act at the time stipulated a THC cutoff point of 0.5% for all hemp production - over that level, and it was was considered a drug cultivar. The problem was that the grower had sourced his hemp seed stock from China, where it had tested around 0.2-0.3% THC. However, as soon as he started growing it in Australia, where UV levels where higher, the same seed stock started to test 0.6-0.8% and higher. This was explained to the government authorities - that THC levels vary in hemp in relation to environmental conditions - and the solution was to mandate 0.5% seed-stock but no higher than 1.0% final production cutoff to recognise environment conditions outside a grower's control.

This is now all in official guidelines here: https://www.foodstandards.gov.au/code/applications/documents/A1039_SD5.pdf

If anyone ever wants to argue UV does not affect cannabinoid production, go talk to a hemp farmer.
Click to expand...
I think I know of what you speak. You talking about the Kentucky people back in the 90's with hemp seed importation? For textile and fiber?
 
since1991 said:
I think I know of what you speak. You talking about the Kentucky people back in the 90's with hemp seed importation? For textile and fiber?
Click to expand...
and food and oil etc.
still a viable crop here in Australia even though govt has made it hard for hemp farmers but ill let Prawn answer you in more detail as he seems to know allot more about the situation than I do.
 
Hybridway said:
Hey, you're back. Welcome back Olive.
Efficiency is a facade IMO based on how they figure it for growing MJ.
Calling one light more or less efficient then the next w/o taking nm's outside of 400-700 into account is bogus. Like saying HPS is any less efficient then led. Maybe for household lighting or Warehouses but our plants desperately need 350-380nm as well as 700-860+ nm's which is what we get from our HPS & LEC that we're not getting from our LEDs. Hence the difference in bud size & leaf thickness. Not to mention, old SE HPS is around 120-150 lm/w too & now there's a new one @ 170.
Look at the spectrum of the CMH. Even @ 1.8 Umol/J, it might as well be 2.5 cuz of the needed IR spike.
You still growing?
Click to expand...
Just mushrooms at the moment, bud. I can’t be growing weed with a baby in the house. Weed’s easier to spot. I’m waiting to find a place elsewhere to set up.
 
Prawn Connery said:
^ This. UV is proven to have an effect on trichome/cannabinoid production, which is often overlooked by indoor growers. I remember years ago speaking to an industrial hemp grower who was having problems with local regulators, as the Industrial Hemp Act at the time stipulated a THC cutoff point of 0.5% for all hemp production - over that level, and it was was considered a drug cultivar. The problem was that the grower had sourced his hemp seed stock from China, where it had tested around 0.2-0.3% THC. However, as soon as he started growing it in Australia, where UV levels where higher, the same seed stock started to test 0.6-0.8% and higher. This was explained to the government authorities - that THC levels vary in hemp in relation to environmental conditions - and the solution was to mandate 0.5% seed-stock but no higher than 1.0% final production cutoff to recognise environment conditions outside a grower's control.

This is now all in official guidelines here: https://www.foodstandards.gov.au/code/applications/documents/A1039_SD5.pdf

If anyone ever wants to argue UV does not affect cannabinoid production, go talk to a hemp farmer.
Click to expand...

This is a problem w/ sphere testing & other efficiency tests today. Only 400-700nm is measured.
 
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