QB96 Elite V2 w/ SSTX heatsink question

[Or_Gro]

gonna take some spectrum measurements, so thought about how to attach fr pucks:



Gonna pass wire over a fixture crossrail pull thru other hole, and tighten....might be too simple (aka ghetto) for some...sekonic won’t care, plants won’t care, i don’t care, if it works....

Will test upto four of these with four 96s, see if i can take far red end of spectrum from


to close to

(8 x qb288 plus 4 x qb35, this works pretty well for emerson effect)

This is the kinda shit i’d like to see from hlg... @Stephenj37826...Before i buy something like this

hint, hint

... i know, “da move”...,

 

[Or_Gro]

gonna take some spectrum measurements, so thought about how to attach fr pucks:

View attachment 4228946

Gonna pass wire over a fixture crossrail pull thru other hole, and tighten....might be too simple (aka ghetto) for some...sekonic won’t care, plants won’t care, i don’t care, if it works....

Will test upto four of these with four 96s, see if i can take far red end of spectrum from
View attachment 4228947

to close to
View attachment 4228949
(8 x qb288 plus 4 x qb35, this works pretty well for emerson effect)

This is the kinda shit i’d like to see from hlg... @Stephenj37826...Before i buy something like this

hint, hint

... i know, “da move”...,

Running four 96s at 120w (lowest of 4 power levels) each at 18” above grid, in 4x4: four pucks can’t evenly spread sufficient far red to raise a 730 peak for a1ft perimeter of the tent (50% of sq ft).

The best positioning is:

Center 50% of footprint has equal or signif greater 730 peak than targeted.

Some additional footprint coverage can be gained by raising to 24”; but, due to positioning adjacent to a 96, the 96 would also have to be raised from it’s optimal height so as not to block the puck’s light.

The four pucks have a combined total of 16 far red diodes, probably need at least 2 more pucks, for at least 24 diodes ($45x6=$270).

I think the primary problem with the puck is that all four diodes are in a small square configuration, putting out high intensity in a small footprint. The target spectrum from the 288s above has 16 far red diodes as well, but spaced out individually and uniformly in 4 rows across the 4x4.

I have a 28 diode growbright far red bar ($130), i’ll locate it in center of tent at 18” and see how it does.

 

[Or_Gro]

Ok, so here is the rapidled fr puck/growbright smackdown:

Here is the target red spectrum, i’m shooting for:


Here is the actual 96 spectrum:


For simplicity, since there are essentially four equivalent quadrants with a single 96 covering a 2x2 area, i am showing the spectra for a single single quadrant.

The physical layout of pucks and bar are:


Note the numbers in the drawing, these are positions for various soectra below.

With only the specified far red light running, here is their intensity, color temp, and spectra at 18” above grid.

Rapidled FR puck:


Growbright FR bar:

 

[Or_Gro]

Keep that intensity level (12.1ppfd vs 4.2ppfd) in mind when you look at the spreads.

Spectra by positions shown on drawing:

Rapidled:

 

[Or_Gro]

Bar:


You don’t need much Far Red intensity to make a big impact, but you do need good diode spread.

A single growbright bar ($130, single plug) provides relatively even coverage, four rapidled pucks ($180, four plugs) don’t.

 

[WeedSexWeightsShakes]

Well crap I got 4 rapidled pucks in my 4x8
Probably isn’t doing much? lol

 

[Or_Gro]

Well crap I got 4 rapidled pucks in my 4x8
Probably isn’t doing much? lol

No, it is doing something, but need to realize that at 18” a single puck is only covering a 2sq ft area (50% of the 4 sq ft quadrant) with enuff intensity to give MY target fr spectrum.

I know this spectrum relative intensity is beneficial, cuz i’m kickin ass under it, could be that this is overkill to some extent, but i’ll leave that to my bud @Randomblame to give his opinion on....who estimated earlier that would need 1-2 pucks per 96.....

But for a 4x4, 4 pucks can’t compete (on price or evenness of spread) with a single, less expensive growbright bar....

Better hurry and put in your order....

 

[Humple]

Well crap I got 4 rapidled pucks in my 4x8
Probably isn’t doing much? lol

Who knows? This is why we need more red-enhanced products and more data!

 

[Or_Gro]

Who knows? This is why we need more red-enhanced products and more data!

I know, i just gave you the frigging answer!

Wtf do i do this frigging work for, when dum basses like you eff’ing ignore it?

 

[WeedSexWeightsShakes]

4 rapidled pucks are $148 btw

 

[Airwalker16]

No, it is doing something, but need to realize that at 18” a single puck is only covering a 2sq ft area (50% of the 4 sq ft quadrant) with enuff intensity to give MY target fr spectrum.

I know this spectrum relative intensity is beneficial, cuz i’m kickin ass under it, could be that this is overkill to some extent, but i’ll leave that to my bud @Randomblame to give his opinion on....who estimated earlier that would need 1-2 pucks per 96.....

But for a 4x4, 4 pucks can’t compete (on price or evenness of spread) with a single, less expensive growbright bar....

Better hurry and put in your order....

So I should be running my FR all day long AND 15MINS AFTER LIGHTS OUT?

 

[Randomblame]

You can get 10 top XP-Es/720-740nm for ~25$ from e3ay. (They also have XP-EHE deep-red in C01 bin(10pcs 20$) or top bin XPG3s)

https://www.ebay.com/itm/10pcs-Cree-XPE-Far-Red-730nm-LED-1-9V-2-4V-350mA-1000mA-20mm-PCB-Board/322722116845?hash=item4b23bcb4ed:g:txsAAOSwKUhZsUG5

One could use a 3ft. 25x 25mm alli c-channels for proper cooling and distribution and a cheap MW APC-25-700. You will get a 15w net far-red bar with ~30-35μMol/s PPF for less than 40 bucks. Maybe 18wall watts.. Two of these bars would deliver a pretty even coverage in a 4x 4' tent. One can also use a 1000mA driver for ~25w, such a c-channel still has enough surface area for passive cooling(1320cm² and one need ~50cm²/w LED).

These seller also has 16" strips with 12 Cree diodes(white or blue or red). When someone asks them, I could imagine they would create them even with far-red diodes or with a deep-/far-red combination. I have asked them for deep- and far-reds in top bin maybe 8 month ago and a week later they made them already available, same with the XPG3s .. so I think, its worth to ask them again ... of course only if interested in 16" strips.

 

[Randomblame]

So I should be running my FR all day long AND 15MINS AFTER LIGHTS OUT?

Depends on how much additional far red it is. I've uploaded the pdf's about "effects of far-red" a few times in the far-red thread. They have used 10-90μMol/s/m² far-red over the whole day on different greens with success.
Download it and take a look at it again! There are some positive effects from better leaf temps to more efficient photosyntesis. Together with the far-red of my 8 CRI90 COB's I have about 40-45μmol /s ppf. I only used the far-reds from end of the stretch last run but I'm pretty sure I could have used it all the time without getting more stretch.
The length of the EoD treatment has much more effect on stretch.
When you add it over the day its like the difference you know from CRI80 vs. CRI90. Flowering and stretch are starting earlier but at the end the difference in heights are pretty small(within 4" maybe). Even the stem diameter stays the same only the nodial spacings will increase a bit and you get slightly bigger leaves.

 

[Or_Gro]

Depends on how much additional far red it is. I've uploaded the pdf's about "effects of far-red" a few times in the far-red thread. They have used 10-90μMol/s/m² far-red over the whole day on different greens with success.
Download it and take a look at it again! There are some positive effects from better leaf temps to more efficient photosyntesis. Together with the far-red of my 8 CRI90 COB's I have about 40-45μmol /s ppf. I only used the far-reds from end of the stretch last run but I'm pretty sure I could have used it all the time without getting more stretch.
The length of the EoD treatment has much more effect on stretch.
When you add it over the day its like the difference you know from CRI80 vs. CRI90. Flowering and stretch are starting earlier but at the end the difference in heights are pretty small(within 4" maybe). Even the stem diameter stays the same only the nodial spacings will increase a bit and you get slightly bigger leaves.

So the 40-45 is ppf not ppfd, correct?

What is the sq meters this is over? In other words, what is the ppfd?

What do you think, for cannabis, is the minimum far red ppfd for emerson (assuming 2:2:1 ratio r:dr:fr)? For initiator?

As for time length of eod initiator treatment on stretch, i run that far red bar for full 15 min at beginning of lightsout, since end of stretch. No apparent stretch at all, expect it would be different before stretch.

 

[Or_Gro]

So far, for a 4x4, i’ve shown that four 96s, running 200w-240w at ~18” are the sweetspot of getting relatively even 1000ppfd across tops. This is the ticket for initial cost penny-pinchers.

Now, the real fun begins, for those of us who value other things over initial out-of-pocket cost performance.

If you fall into this category and you’ve got a 4x4, you are gonna love what 5 or 6 96s can do for you in the 120-160w power range... think cool in both ways....

More to come....

 

[Dave455]

So far, for a 4x4, i’ve shown that four 96s, running 200w-240w at ~18” are the sweetspot of getting relatively even 1000ppfd across tops. This is the ticket for initial cost penny-pinchers.

Now, the real fun begins, for those of us who value other things over initial out-of-pocket cost performance.

If you fall into this category and you’ve got a 4x4, you are gonna love what 5 or 6 96s can do for you in the 120-160w power range... think cool in both ways....

More to come....

4 in a 3x3....

 

[WeedSexWeightsShakes]

So far, for a 4x4, i’ve shown that four 96s, running 200w-240w at ~18” are the sweetspot of getting relatively even 1000ppfd across tops. This is the ticket for initial cost penny-pinchers.

Now, the real fun begins, for those of us who value other things over initial out-of-pocket cost performance.

If you fall into this category and you’ve got a 4x4, you are gonna love what 5 or 6 96s can do for you in the 120-160w power range... think cool in both ways....

More to come....

I think you posted this already but can’t remember. Did the extra red on the 96s show much of a difference? Nice work too! Need you to come my way and test my lights for me

 

[Ryante55]

I know, i just gave you the frigging answer!

Wtf do i do this frigging work for, when dum basses like you eff’ing ignore it?

Just go away problem solved

 

[Or_Gro]

Just go away problem solved

You got anything valuable to add, troll?

 

[Ryante55]

You got anything valuable to add, troll?

Nope just stop crying or leave it's simple