QB96 Elite V2 w/ SSTX heatsink question

[Or_Gro]

Divide by 64 instead of 67 for the qb96?

@Stephenj37826, @robincnn

Need confirmation, please.

Another poster said hlg said for 96elites, divide lux by 64 to approximate ppfd. Correct?

Perhaps you can add lux->ppfd conversion factor to stats on each white led’s webpage...

Or, add on to this:
https://horticulturelightinggroup.com/blogs/news/converting-lux-to-ppfd

 

[Stephenj37826]

67 for 400-700nm and 64.8 for 380-780nm 84cri and 3314K

 

[Or_Gro]

67 for 400-700nm and 64.8 for 380-780nm 84cri and 3314K

Thanks, seems to vary per unit and per wattage: here are a couple examples (sekonic c-7000):



Whatever..these are great lights, can’t wait to see 96e vs 288 flowering results..

 

[Jetfixer100]

You don’t mention your grow space but if 4x4 I would get a 640h-54 and wire in parallel. These things get plenty hot at 160w. If 3x3 I would get 480h-54

I have 13 of these in 3 veg/flower tents and 2 prop/cloning tents, which requires a range of wattages.

My recco is 240w per light, for max wattage range depending on footprint size, look at the mapping.

and the “a” version dimmer, these lights need dimmers....and the “a” version gives max dimming range

A dedicated or detachable dc meter is nice to have as well, like
View attachment 4282282

I use a single hlg-240h-54a per 96... an example of how this flexibility comes in handy is in this situation

View attachment 4282285

Where this is very handy

View attachment 4282284

if you have heat issues wire your setup with the drivers located outside the tent.

Get a light meter, even if just a cheap lux meter like this (for 96elite, divide lux by 64 to get ppfd)

View attachment 4282292

Check out page 16 of this, for ppfd levels (and other useful targets) at various devel stages: http://fluence.science/wp-content/uploads/2016/09/High-PPFD-Cultivation-Guide-9.27.16.pdf

As for parallel or serial, i’ll leave that to the electricians here...i prefer max flexibility, so for me, only one driver per light, with disconnect connectors, on inexpensive aluminum rails...plug and play, position anywhere, anytime...in seconds. Goes really well with this small form factor.

Thanks for all of the great information! I’m putting four of these in a 3x3. I went with the 480H-54A (guess I’m wiring in parallel). Great idea on the DC meter. I will look into it. Thanks again!

 

[Or_Gro]

Thanks for all of the great information! I’m putting four of these in a 3x3. I went with the 480H-54A (guess I’m wiring in parallel). Great idea on the DC meter. I will look into it. Thanks again!

My pleasure.

You’ll be able to run them relatively cool, and need only 1 or 2 on for veg...consider some far red turbochargers... around 3-4 fr diodes per 96.....after stretch, run them full lights on plus first 5-15 mins of lightsout...more info on “the far red” thread.

Come back with pics of your results. Enjoy!

 

[Jetfixer100]

My pleasure.

You’ll be able to run them relatively cool, and need only 1 or 2 on for veg...consider some far red turbochargers... around 3-4 fr diodes per 96.....after stretch, run them full lights on plus first 5-15 mins of lightsout...more info on “the far red” thread.

Come back with pics of your results. Enjoy!

It’s funny you should mention that. I just bought a couple of the RapidLED/Growmau5 far red pucks that I am going to incorporate into my build. I guess great minds think alike!

 

[Or_Gro]

It’s funny you should mention that. I just bought a couple of the RapidLED/Growmau5 far red pucks that I am going to incorporate into my build. I guess great minds think alike!

Well, i just might buy another 96, so i can match your 3x3 and raise you a puck!



Consider also adding:

 

[Jetfixer100]

Well, i just might buy another 96, so i can match your 3x3 and raise you a puck!

View attachment 4282584

Consider also adding:

View attachment 4282586

Challenge accepted!

 

[Or_Gro]

Challenge accepted!

Looks to me like you have some catchin up to do...lol



I’ll build it tonite.

 

[Jetfixer100]

Looks to me like you have some catchin up to do...lol

View attachment 4282641

I’ll build it tonite.
View attachment 4282672

Mine will be here tomorrow.

Not too far behind ya!

 

[Or_Gro]

Mine will be here tomorrow.
View attachment 4282685
Not too far behind ya!

Very nice!

 

[Or_Gro]

Looks to me like you have some catchin up to do...lol

View attachment 4282641

I’ll build it tonite.
View attachment 4282672

Done deal...

 

[Or_Gro]

Jetfixer, whaddaya think:

3x3, 4x96 plus 3 rapidled fr pucks, 18-20” above tops...



405 watts (down 120w for same intensity)...lol


And, quite the red spectrum...lol


Hey @Randomblame , too much fr?

3 pucks above, 2 below:

 

[Randomblame]

Jetfixer, whaddaya think:

3x3, 4x96 plus 3 rapidled fr pucks, 18-20” above tops...

View attachment 4283054

405 watts (down 120w for same intensity)...lol
View attachment 4283055

And, quite the red spectrum...lol
View attachment 4283056

Hey @Randomblame , too much fr?

3 pucks above, 2 below:
View attachment 4283059

Nope! When using too much fr you would see unnatural stretch, lush green leafs, elongated leaf stems and other signs of SAS(shade avoidance syndrome).
With this red/far red ratio and maximum intensity there is for sure no unwanted stretch.

Plants look pretty good again, buddy! And they seem to like the light and pray all day long.

Since I'm adding far-red I've recognized them pray even harder like without far-red. They literally pray all day long even 10mins after lights off when only the far-red trigger is running they pray as if there was no tomorrow anymore.

 

[Or_Gro]

Nope! When using too much fr you would see unnatural stretch, lush green leafs, elongated leaf stems and other signs of SAS(shade avoidance syndrome).
With this red/far red ratio and maximum intensity there is for sure no unwanted stretch.

Plants look pretty good again, buddy! And they seem to like the light and pray all day long.

Since I'm adding far-red I've recognized them pray even harder like without far-red. They literally pray all day long even 10mins after lights off when only the far-red trigger is running they pray as if there was no tomorrow anymore.

They’re thankin the almighty they’re in my tent...under 96s...

These girls are prayers, too...i’ll have to add a spare puck, see if they can pray harder...



With:


Without:



As soon as stretch is done, the smackdown girls will be getting these....


28 diodes in each 4x4...

Lol

 

[Jetfixer100]

Jetfixer, whaddaya think:

3x3, 4x96 plus 3 rapidled fr pucks, 18-20” above tops...

View attachment 4283054

405 watts (down 120w for same intensity)...lol
View attachment 4283055

And, quite the red spectrum...lol
View attachment 4283056
Looks great! That’s what I’m shooting for. Nice job!
Hey @Randomblame , too much fr?

3 pucks above, 2 below:
View attachment 4283059

Jetfixer, whaddaya think:

3x3, 4x96 plus 3 rapidled fr pucks, 18-20” above tops...

View attachment 4283054

405 watts (down 120w for same intensity)...lol
View attachment 4283055

And, quite the red spectrum...lol
View attachment 4283056

Hey @Randomblame , too much fr?

3 pucks above, 2 below:
View attachment 4283059

Looks great! That’s exactly what I’m shooting for. Great job!

 

[Or_Gro]

Looks great! That’s exactly what I’m shooting for. Great job!

Hope they came today, have a great evening.

 

[Jetfixer100]

Hope they came today, have a great evening.

Well, now that it’s the beginning of the work week, they finally showed up. Looks like an upcoming weekend project!

 

[Zipz55]

What can i do to get the temps down in my tent?

Im currently running 2 QB96s in a 2x2 at 90 watts per light.Both drivers are outside the tent and I can’t get the temp inside the tent below 88 degrees

I was at 89 before i put an ac infinity fan over each heatsink but that only dropped the temp 1 degree

Will i be ok at 88 degrees in the tent or should I remove one of the QB96s and just leave 1 ine the tent

 

[pulpoinspace]

What can i do to get the temps down in my tent?

Im currently running 2 QB96s in a 2x2 at 90 watts per light.Both drivers are outside the tent and I can’t get the temp inside the tent below 88 degrees

I was at 89 before i put an ac infinity fan over each heatsink but that only dropped the temp 1 degree

Will i be ok at 88 degrees in the tent or should I remove one of the QB96s and just leave 1 ine the tent

well what temperature is the room the tent is in. and where are you drawing intake air from?

while were at it how big is the tent