EB Series™ Gen 2 Build

[Canadain Closet Gardener]

Hi all
I've decided to build my first light. It will be going in a 36" x 20" x 63" tent

I'm going to use this tent to flower only.

I have to order 18 of the 28cm strips to get free shipping.

Digikey seems like they are only going to carry the EB Series™ Gen 2 in 3500k & 5000K as a regular stocked item.

3500k
https://www.digikey.ca/product-detail/en/bridgelux/BXEB-L0280Z-35E1000-C-B3/976-1736-ND/7907665

5000K
https://www.digikey.ca/product-detail/en/bridgelux/BXEB-L0280Z-50E1000-C-B3/976-1737-ND/7907666

What combo should I order? I was thinking 14 = 3500k and 4 = 5000k
Or should I just get 18 3500k

To run this I should use HLG-320H-20B if I'm correct?

https://ca.mouser.com/ProductDetail/MEAN-WELL/HLG-320H-20B/?qs=sGAEpiMZZMt5PRBMPTWcaRTgZe1UVjflbjKATHUnvts=

Also could I use a combo of 16 of the 28cm and two 56cm strips on one driver? My thinking is 16 28cm strips 3500k horizontal and two 56cm 5000k strips sideways
like this


Sorry for my paint skills
As always any help is greatly appreciated.
Cheers
CCG

 

[nfhiggs]

Hi all
I've decided to build my first light. It will be going in a 36" x 20" x 63" tent

I'm going to use this tent to flower only.

I have to order 18 of the 28cm strips to get free shipping.

Digikey seems like they are only going to carry the EB Series™ Gen 2 in 3500k & 5000K as a regular stocked item.

3500k
https://www.digikey.ca/product-detail/en/bridgelux/BXEB-L0280Z-35E1000-C-B3/976-1736-ND/7907665

5000K
https://www.digikey.ca/product-detail/en/bridgelux/BXEB-L0280Z-50E1000-C-B3/976-1737-ND/7907666

What combo should I order? I was thinking 14 = 3500k and 4 = 5000k
Or should I just get 18 3500k

To run this I should use HLG-320H-20B if I'm correct?

https://ca.mouser.com/ProductDetail/MEAN-WELL/HLG-320H-20B/?qs=sGAEpiMZZMt5PRBMPTWcaRTgZe1UVjflbjKATHUnvts=

Also could I use a combo of 16 of the 28cm and two 56cm strips on one driver? My thinking is 16 28cm strips 3500k horizontal and two 56cm 5000k strips sideways
like this
View attachment 4053294

Sorry for my paint skills
As always any help is greatly appreciated.
Cheers
CCG

3 x 28 cm is just over 33 inches. Run them long ways, three strips end to end, six rows, 18 total.

 

[Canadain Closet Gardener]

3 x 28 cm is just over 33 inches. Run them long ways, three strips end to end, six rows, 18 total.

That makes much more sense and easier frame to make.
Thank you
Cheers
CCG

 

[VegasWinner]

I run equal mix of 5000k and 3500k for great growing

 

[Randomblame]

Hmm!
The 2ft. strips need double the current as the 1ft. strips(700 vs. 350mA).
If you ran 1 and 2ft. strips in series on the same driver the 2ft. strips are half as bright as the 1ft. strips, because both are 19,5v.
But you could take a 700mA driver when you connect every two 1ft. strips in parallel and then add the 2ft. strips in series to the pairs of 1footers. This way the 2ft. strip gets his 700mA and the 1ft. strips run at 350mA, all on one driver, each LED gets the same current(87,5mA).

Something like this would work..

 

[Danielson999]

Even if you had to pay shipping it's only $8 but it sounds like you already ordered. 3 rows of 6 sounds perfect. That's a shit ton of photons in that tent. Even with a 240w HLG you're looking at 50w per sqft and with the efficiency of the Gen 2 strips you'll be coming close to nuclear fusion.

 

[andy s]

question all you led geniuses, if you run an led are all kept at 36" away from the canopy

 

[andy s]

also do they have to be kept higher than an hid light

 

[Canadain Closet Gardener]

question all you led geniuses, if you run an led are all kept at 36" away from the canopy

I keep my light 24 inches away from my canopy. I'm running 800w in a 2x4 tent.
Cheers
CCG

 

[nc208]

question all you led geniuses, if you run an led are all kept at 36" away from the canopy

Depends how hard you drive them. My canopy is 12" from lights. Light is at 125w over a 18" x 18" area.

 

[Dave455]

I keep my light 24 inches away from my canopy. I'm running 800w in a 2x4 tent.
Cheers
CCG

100 watts per square foot ?? burning anything up ?

 

[Canadain Closet Gardener]

100 watts per square foot ?? burning anything up ?

When I first put them up I did burn my plants early in veg. That was more of how close can I get my lights to my canopy.
here is a picture of my first grow


Current grow is going much better


Cheers
CCG

 

[Canadain Closet Gardener]

Well I got my quote for my frame materials
Aluminum Square Tube 6061T6 1.000 X 1.000 X 0.120 / 0.125
6 @ 35 IN $49.06
2 @ 16 IN $7.48
Sales Tax 13% $7.35
TOTAL $63.89

 

[Danielson999]

You might want an extra piece or two for mounting drivers or junction boxes etc.

 

[andy s]

thanks guys

 

[Rp1972]

Depends how hard you drive them. My canopy is 12" from lights. Light is at 125w over a 18" x 18" area.

What is your set up in the 18 x 18

 

[nc208]

Here' my current grow with it.
http://rollitup.org/t/vero-10-2000k-w-samsung-3500k-purple-afghan-kush-dinafem-diy-grow-box.950903/

 

[Canadain Closet Gardener]

So I went to pick up my Aluminum today. They messed up my order. They cut me 1 inch with rounded corners, I asked for square corners. They are redoing my order.
Question is could I use that for the strips?
I'm wondering as I could build a second frame for dirt cheap now, as the pieces they cut are most likely in the scrap pile.



This what I ordered

This what the cut for me.


Cheers
CCG

 

[Zero_OS]

yes you can use the ones with rounded corners in the scrap bin to mount strips

 

[Canadain Closet Gardener]

So I received my metal today. I also got the rounded cornered Aluminum for cheap so I can make a second light.

So originally I was going to go with 18 one foot strips now 24

but now I'm thinking 27 strips

I still can't figure out the math on how to chose the drivers with these 1 foot strips. I've been told what drivers i need but i want to learn the math.
Could someone write out an equation?
Cheer
CCG