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EB Series™ Gen 2 Build

Discussion in 'LED and other Lighting' started by Canadain Closet Gardener, Dec 4, 2017.

  1.  
    Canadain Closet Gardener

    Canadain Closet Gardener Well-Known Member

    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...=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
    lighta.jpg

    Sorry for my paint skills :oops:
    As always any help is greatly appreciated.
    Cheers
    CCG
     
  2.  
    nfhiggs

    nfhiggs Well-Known Member

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

    Canadain Closet Gardener Well-Known Member

    That makes much more sense and easier frame to make. :clap:
    Thank you
    Cheers
    CCG
     
  4.  
    VegasWinner

    VegasWinner Well-Known Member

    I run equal mix of 5000k and 3500k for great growing
     
  5.  
    Randomblame

    Randomblame Well-Known Member

    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..
    Series-parallel circuit with 1' and 2' strips.png
     
  6.  
    Danielson999

    Danielson999 Well-Known Member

    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.
     
    Last edited: Dec 5, 2017
  7.  
    andy s

    andy s Well-Known Member

    question all you led geniuses, if you run an led are all kept at 36" away from the canopy
     
  8.  
    andy s

    andy s Well-Known Member

    also do they have to be kept higher than an hid light
     
  9.  
    Canadain Closet Gardener

    Canadain Closet Gardener Well-Known Member

    I keep my light 24 inches away from my canopy. I'm running 800w in a 2x4 tent.
    Cheers
    CCG
     
    Rp1972 and andy s like this.
  10.  
    nc208

    nc208 Well-Known Member

    Depends how hard you drive them. My canopy is 12" from lights. Light is at 125w over a 18" x 18" area.
     
    Rp1972, andy s and Kenny Grows like this.
  11.  
    Dave455

    Dave455 Well-Known Member

    100 watts per square foot ?? burning anything up ?
     
    Randomblame likes this.
  12.  
    Canadain Closet Gardener

    Canadain Closet Gardener Well-Known Member


    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
    DSC_0310.JPG

    Current grow is going much better
    20171129_065727.jpg

    Cheers
    CCG
     
    PetFlora, Rp1972 and andy s like this.
  13.  
    Canadain Closet Gardener

    Canadain Closet Gardener Well-Known Member

    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
     
  14.  
    Danielson999

    Danielson999 Well-Known Member

    You might want an extra piece or two for mounting drivers or junction boxes etc.
     
  15.  
    andy s

    andy s Well-Known Member

    thanks guys
     
  16.  
    Rp1972

    Rp1972 Member


    What is your set up in the 18 x 18
     
  17.  
    nc208

    nc208 Well-Known Member

  18.  
    Canadain Closet Gardener

    Canadain Closet Gardener Well-Known Member

    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
    $_35.jpg
    This what the cut for me.
    E-9215-BK-EA-MF112.jpg

    Cheers
    CCG
     
  19.  
    Zero_OS

    Zero_OS Member

    yes you can use the ones with rounded corners in the scrap bin to mount strips
     
  20.  
    Canadain Closet Gardener

    Canadain Closet Gardener Well-Known Member

    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
    20171208_172804.jpg
    but now I'm thinking 27 strips
    20171208_173945.jpg
    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
     

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