gen3 2700g strips with hlg-320-42a

[TEKNIK]

How to get hold of these TEK and how much?

https://growlightsaustralia.com/product ... y/buddies/

If you are in Australia or Europe the kits are good value, for US and Canada match them to a meanwell 24V driver.
PM me for details so I dont spam this thread

I'm planning to make a proper thread about these, a bit crazy here at the moment and I'm finding myself pressed for time

[Wookie]

Thanks. and just to mention something you said.... why wouldn't you recommend using two different colour temps on the same fixture? Like a 2700k & 4000K for example? Would that not make a better overall spectrum?

[TEKNIK]

Thanks. and just to mention something you said.... why wouldn't you recommend using two different colour temps on the same fixture? Like a 2700k & 4000K for example? Would that not make a better overall spectrum?

When using basic colors of phosphor conversion from the same brand such as basic Samsung cri80 you are not making a better overall spectrum, all you are doing is changing the color when you could have just ordered a basic color. If you were doing something tunable it makes sense to have 2 colors, one for veg and a blend for flower.

Better overall spectrum is when you are doing something to broaden the spectrum and mixing 2 basic spectrums doesn't make it broader it just makes it different, no advantage to it.

If you were to use 5000K Nichia optisolis with 3000K CRI80 Nichia then you would be making the spectrum broader as optisolis has a 420nm pump but normal standard strips have a 450nm pump. Same applies when you push a Spectrum out with deep red phosphor not commonly available.
Nothing wrong with mixing spectrums if you have a good reason to do so but in terms of mixing 2700K and 4000K to get 3500K which many companies do it doesn't make alot of sense, they should just use 3500K.

I'm releasing a product soon that mixes different colors of led chips but they are not standard chips that are normally available, I'm doing this to broaden the spectrum and increase efficiency.

[SleepthenPhotonStorm]

I will definitely be interested in these products!
Thanks for bringing them to market.

[PeteR_1]

Some Calculations...
1... 4' x 4' = 16 sq ft or ~ 1.6 sq m (m2)
2... 5' x 5' = 25 sq ft or ~ 2.5 sq m (m2)
3... 6' x 6' = 36 sq ft or ~ 3.6 sq m (m2)


The typical recommendation (based on HID Fixture Watts):
1... @ 30 - 40 Watts (per sq ft) * 16 sq ft = 480 - 640 Watts
640 Watts * 1.5 PPE(PPF/W) = 960 PPF

2... @ 30 - 40 Watts (per sq ft) * 25 sq ft = 750 - 1000 Watts
1000 Watts * 1.5 PPE(PPF/W) = 1500 PPF

3... @ 30 - 40 Watts (per sq ft) * 36 sq ft = 1080 - 1440 Watts
1440 Watts * 1.5 PPE(PPF/W) = 2160 PPF


Recommendation based on PPFD and Efficient LED (Strips and Boards):
1... @ 80 PPF (per 0.1 sq m CO2 Enhanced Flower) * 16 = 1280 PPF
1280 PPF / 2.5 PPE(PPF/W) = 512 Watts
1280 PPF / 72 PPF each (BXEB-L1120Z-35E4000-C-C3, Gen3 1120mm) = 18 strips (486 Watts)

2... @ 80 PPF (per 0.1 sq m CO2 Enhanced Flower) * 25 = 2000 PPF
2000 PPF / 2.5 PPE(PPF/W) = 800 Watts
2000 PPF / 72 PPF each (BXEB-L1120Z-35E4000-C-C3, Gen3 1120mm) = 28 strips (756 Watts)

3... @ 80 PPF (per 0.1 sq m CO2 Enhanced Flower) * 36 = 2880 PPF
2880 PPF / 2.5 PPE(PPF/W) = 1152 Watts
2880 PPF / 72 PPF each (BXEB-L1120Z-35E4000-C-C3, Gen3 1120mm) = 40 strips (1080 Watts)
[Note; 2.5 PPE = 167 Lm/W * 0.015 (Generic 4000K, 80 CRI PPF/Lm factor)]


Selected Drivers, Dimmable:
1... HLG-600H-42AB = 1 @ 600 = 600 Watts * 2.5 PPE (18 - BXEB @ 33.3 watts each strip) = 1500 PPF
HLG-240H-42AB = 2 @ 240 = 480 Watts * 2.7 PPE (BXEB @ 26.6 watts each strip) = 1296 PPF
XLG-240-H-AB = 2 @ 240 = 480 Watts * 2.7 PPE (BXEB @ 26.6 watts each strip) = 1296 PPF

2... HLG-480H-42AB = 2 @ 480 = 960 Watts * 2.5 PPE (28 - BXEB @ 35.5 watts each strip) = 2400 PPF
HLG-320H-42AB = 2 @ 320 = 640 Watts * 2.7 PPE (BXEB @ 23.0 watts each strip) = 1728 PPF
XLG-240-H-AB = 4 @ 240 = 960 Watts * 2.5 PPE (BXEB @ 35.5 watts each strip) = 2400 PPF

3... HLG-600H-42AB = 2 @ 600 = 1200 Watts * 2.5 PPE (40 - BXEB @ 30.0 watts each strip) = 3000 PPF
HLG-480H-42AB = 2 @ 480 = 960 Watts * 2.7 PPE (BXEB @ 24.0 watts each strip) = 2592 PPF
HLG-240H-42AB = 4 @ 240 = 960 Watts * 2.7 PPE (BXEB @ 24.0 watts each strip) = 2592 PPF
XLG-240-H-AB = 4 @ 240 = 960 Watts * 2.7 PPE (BXEB @ 24.0 watts each strip) = 2592 PPF
...


BXEB Gen3... https://www.bridgelux.com/sites/default ... ev%20A.pdf
HLG-600H-42AB... https://octopart.com/search?autosugg_id ... 2b&specs=1
HLG-480H-42B... https://octopart.com/search?q=hlg-480h- ... SD&specs=0
HLG-320H-42B... https://octopart.com/search?autosugg_id ... 2b&specs=1
HLG-240H-42B... https://octopart.com/search?q=hlg-240h- ... SD&specs=0
XLG-240-H-AB... https://octopart.com/search?autosugg_id ... ab&specs=1
Fluence Photo-biology Guide... https://2xuwao2gok1v2wn2em9n5ys8-wpengi ... e-2019.pdf
Light Sizing Chart... download/file.php?id=4438&mode=view
Light SPD Wavelength Distribution Comparison Chart... download/file.php?id=4401

BTW, I'm not a "Grower" but IMO the BXEB-2700G CRI 90 LED Strips only require a "Blue" Wavelength Supplement (~ 420 nm "Violet" wideband) to become a true "Full Spectrum" (400 - 750nm) light source.

[SleepthenPhotonStorm]

Hi Again!
For strips...

I had seen in the past it was recommended with the gen 2's at least, the 80 cri went well with 3000k and for the 90 cri it was recommended 3500k.

Thanks for implying on my current build to look into some violet to help it become full spectrum.

I had seen that falcon had a build with (10) 4' strips in parallel on a
HLG-320-42a had around 38.3 volts so maybe I can find something within that remaining 3.7 volts since the driver has up to 42 volts.
To add 3v chips Would that just be to wire onein series at the end of each parallel leg so 10 chips total?

I'm building the (2) with 10 strips each of these because I saw a lot of good reactions to the spectrums in the threads on here

I was wondering what most people on here would recommend to run for a nice cannabis yield?

I'm going to be likely ordering another 40 4' gen 3 strips after this harvest and wanted to know what spectrum and cri you would go with if it was your weed grow.

I seen in Peter's example it was 3500k 80 cri gen 3 strips and I'm curious as to what would be ideal to run.

To narrow it down im just wondering which of these or am I overlooking one.
Say I were to get 80 cri 3500k spectrum, 3k 80cri , or the 2700k 90cri.
With the 3500k spectrum would I get the most lumens but would then need to pair it up with something with far red's in there such as the Buddy's that Teknik has for sale?

What strips theoretically are the best producer's or a good combination. Im sure a lot of them would get the job done just didn't know if one had a leg up on the other strips such as the heavy amount of red's in the spectrum of what arrived today.


I was going to post this a month or more ago but The 4' strips part number
BXEB-L1120Z-27G4000-C-C3 only had 140 on order between now and October 27th so I waited until I reserved some for me before posting.

Alas they arrived today so just waiting for the drivers (hlg-320-42a to put it together but will be making more lights in the future as well and am always excited to read through the forum.
Strips seem like the right choice on a decent size grow but I'm very limited still on Led knowledge and never looked into quantum boards much think I want to go 100% strips but they even might have something comparable but whatever it is I want to put it together myself and b-lux has impressed me thus far.

[TEKNIK]

If you wanted to add a couple of leds in series then you could hack my new 660nm Buddies and run 2 in series along with your bridgelux strips. Its a bit of work to do this but it would work well.
One thing that makes the Buddies ideal for suppliments is the optics. The optics allow for much better blending into an existing strip build or normal quantum board type build, the 660nm is also very efficient and even with the optics they are more efficient than a Cree XPE2.
The other thing that I would suggest is a few strips of 730nm Buddies for end of day applications. This would need to be on a seperate driver.

[SleepthenPhotonStorm]

Right on.
I would like to try them out and will order some and add them in next time wife let's me lol.
Would I use it more with the gen 2's that are 3k and 3500k builds or would i use just as many for the closet with the hlg-320-42a with the 2700g lighting as well?

[TEKNIK]

2700K doesn't need more red, you could add it if you wanted to increase efficiency. 730nm for end of day would be good though

[PeteR_1]

1. The Kelvin Temperatures (K) are used as a "Reference" to the percentage of Blue and Red wavelengths (%) in any particular spectrum, with Green wavelengths (%) increasing with higher (K) CCT.
2. Mixing the Warm and Cool Kelvin Temperatures was originally used to increase Blue wavelengths % (Cool Temps) or Red wavelengths % (Warm Temps) to get a 3000K - 4000K mix with corresponding modified Spectral Wavelength Distribution Percentages.
3. Higher CRI typically has higher Red Wavelength percentage (%) and can reduce or eliminate a need for additional Red and Far Red.

In the Attached Chart of Spectral Wavelength Distribution Comparisons note that the Bridgelux 2700 K EB Gen3 90 CRI has a higher percentage (%) of Red and Far red compared to many other Commercial "Grow Lights", even ones with added 660 nm diodes... Which leads to my comment;

IMO the BXEB-2700G CRI 90 LED Strips only require a "Blue" Wavelength Supplement (~ 420 nm "Violet" wideband) to become a true "Full Spectrum" (400 - 750nm) light source.

Because like most PC (Phosphor Converted) White LED there is missing wavelengths, a "Gap" between ~ 400 - 430 nm.