QB96 Elite V2 w/ SSTX heatsink question

Or_Gro

Well-Known Member
Oh I see. I built my far red initiator for $60. Stevesleds.com had the 730's for dirt cheap then. Might still
Getting closer and closer to doing that...whats the diy process for assembling?

Would like to put one together and test...
 

Or_Gro

Well-Known Member
Thanks, i’ll take a stab at it sometime...

My growbright bar lights them up like poinsettias...really besutiful w naked eye...but impossible to get a good pic, here’s what i get w i-phone:

E935AF91-E679-4EA5-A073-0E8A61DD130C.jpeg
4x4, looking down on tops
 

Or_Gro

Well-Known Member
Btw my strains say 11-12 weeks, i’m day 65 today with buds swelling and trichs starting to cloud, looks like may be harvesting early. If so, initiator at 15 mins begin of lightsoff, w/ 288s and 35s on 12 hrs, seems to be reducing flower period length....
 

Airwalker16

Well-Known Member
Btw my strains say 11-12 weeks, i’m day 65 today with buds swelling and trichs starting to cloud, looks like may be harvesting early. If so, initiator at 15 mins begin of lightsoff, w/ 288s and 35s on 12 hrs, seems to be reducing flower period length....
You're supposed to be on a 13/11 or at least 12.5/11.5 schedule with Far Red man. 12/12 is not right if you're using 730nm at lights out.
 

Or_Gro

Well-Known Member
You're supposed to be on a 13/11 or at least 12.5/11.5 schedule with Far Red man. 12/12 is not right if you're using 730nm at lights out.
Imo, baloney! I am aware of different lightsoff plays, but 12:12 obviously works, too.

I started 13.5 and changed to 12, cuz i wanted sleepytime for incremental bud growth, but appears also getting reduced time...

This is cutting edge stuff for cannabis, hopefully with Canada legalization we’ll see some real statistically valid research...
 

Airwalker16

Well-Known Member
You understand why right? The plants in nature don't even get 12/12. More like 14/10. They take a while to fall asleep.with initiator far red, you avoid that therefore using more light is worth.

At least use 12.5/11.5
 

Or_Gro

Well-Known Member
You understand why right? The plants in nature don't even get 12/12. More like 14/10. They take a while to fall asleep.with initiator far red, you avoid that therefore using more light is worth.

At least use 12.5/11.5
I understand theory, don’t agree with light schedule guidelines...12:12 works, imo...i bet, if theory wirks at all, it wirks for anything between 12:12 and 12+ upto 2hrs less (5 to 15min) fr on:12 - fr on works too....perhaps to varying degree based on schedule...

The concept is plants that instantaneously go into sleep mode from “end of day” fr (photo cannabis does, not all plants do), can get by with less lightsoff, thereby providing opportunity to increase photosynthesis time for shorter flower period or greater bud wt, can also be that there is incremental benefit from extended dark processes (complex carbo fixing, tissue devel & growth, extract production, etc.)...

the schedules are totally unsupported by statistically valid cannabis research, as far as i am aware.

You have other than hearsay about schedules, please link..
 
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Stephenj37826

Well-Known Member
You understand why right? The plants in nature don't even get 12/12. More like 14/10. They take a while to fall asleep.with initiator far red, you avoid that therefore using more light is worth.

At least use 12.5/11.5
I understand theory, don’t agree with light schedule guidelines...12:12 works, imo...i bet, if theory wirks at all, it wirks for anything between 12:12 and 12+ upto 2hrs less (5 to 15min) fr on:12 - fr on works too....perhaps to varying degree based on schedule...

The concept is plants that instantaneously go into sleep mode from “end of day” fr (photo cannabis does, not all plants do), can get by with less lightsoff, thereby providing opportunity to increase photosynthesis time for shorter flower period or greater bud wt, can also be that there is incremental benefit from extended dark processes (complex carbo fixing, tissue devel & growth, extract production, etc.)...

the schedules are totally unsupported by statistically valid cannabis research, as far as i am aware.

You have other than hearsay about schedules, please link..
The best practice would be to calculate DLI and run the appropriate lights on time to meet the suggested DLI. Recommended DLI is strain specific.
 

Or_Gro

Well-Known Member
The best practice would be to calculate DLI and run the appropriate lights on time to meet the suggested DLI. Recommended DLI is strain specific.
Yeah, i actually use dli for my main lights...and have posted geographical dli’s, including for norcal and southern or, the premiere US growing regions...

i’d like to see those strain-specific dli’s and associated research backing them up.

Got links?
 

Stephenj37826

Well-Known Member
Yeah, i actually use dli for my main lights...and have posted geographical dli’s, including for norcal and southern or, the premiere US growing regions...

i’d like to see those strain-specific dli’s and associated research backing them up.

Got links?
I'd probably start with 100% sativa DLI recommendations and 100% indicia recommendations and make an educated guess. With so many strains and then on top multiple phenos that would be a large chunk of data.
 

Or_Gro

Well-Known Member
Spent afternoon getting tent set up, doesnt look like much work, but took some time:

4FA784BD-0124-4AC4-989F-58BAA8266FC1.jpeg 6F2CCA27-46F4-4B7C-87E4-633B5ADEEFF3.jpeg 6E307BCD-70CE-41BE-8BDD-166AF4C1C481.jpeg

using 240h-54A, single 96, no adj to dimmers (haven’t checked what initial settings are yet):

One light isn’t gonna get you much spread.

At 12” ht you get about 1870 ppfd dead center under light, move approx 8-9” in any direction you drop to about 750.

At 16” ht dead center is about 1000ppfd, move approx 6” any direction about 600

At 24” ht dead center is 430ppfd, 6” any direction about 350.

Again, i don’t know what amps/watts really are, so actual numbers aren’t as important as the tightness of spread and intensity drop off w/ ht: increase ht the spread evens, but intensity drops fast.

Hopefully the driver settings are way underpowered. Will be playing around with that tomorrow....

Btw, those fishing leaders are a fugging biatch to use for getting the light level, really need a bigger surface area frame.
 

Humple

Well-Known Member
I keep pondering the utility of the QB96. On the one hand, the form-factor gives me pause, because it seems - footprint-wise - to be less suited to small tent grows, but on the other hand, it's a lot of power for the dollar, and it offers something different, spectrum-wise. I would absolutely fucking love to see a PPFD map for four QB96s, at 150w each, in a 4x4 tent.
 

Airwalker16

Well-Known Member
I keep pondering the utility of the QB96. On the one hand, the form-factor gives me pause, because it seems - footprint-wise - to be less suited to small tent grows, but on the other hand, it's a lot of power for the dollar, and it offers something different, spectrum-wise. I would absolutely fucking love to see a PPFD map for four QB96s, at 150w each, in a 4x4 tent.
I agree. I would think boards will have a better overall similar PAR number though.
 

Or_Gro

Well-Known Member
I keep pondering the utility of the QB96. On the one hand, the form-factor gives me pause, because it seems - footprint-wise - to be less suited to small tent grows, but on the other hand, it's a lot of power for the dollar, and it offers something different, spectrum-wise. I would absolutely fucking love to see a PPFD map for four QB96s, at 150w each, in a 4x4 tent.
Well, stay tuned, cuz i’m gonna do it for upto 8 of them in my 4x4.
 

Prawn Connery

Well-Known Member
You understand why right? The plants in nature don't even get 12/12. More like 14/10. They take a while to fall asleep.with initiator far red, you avoid that therefore using more light is worth.

At least use 12.5/11.5
You understand cannabis is an equatorial species, right? What is the DLI at the equator? For that matter, what is the DLI in Central Asia during the flowering season? Also, indoor cannabis has been selectively crossed and bred to flower under 12/12 for the past 40 years.
 

Airwalker16

Well-Known Member
You understand cannabis is an equatorial species, right? What is the DLI at the equator? For that matter, what is the DLI in Central Asia during the flowering season? Also, indoor cannabis has been selectively crossed and bred to flower under 12/12 for the past 40 years.
Okay. So what are you trying to slam me for? You wanna tell me its not got some merit to it?
 
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