Adding deep & far reds to Quantum Board build

Discussion in 'LED and other Lighting' started by Toohighmf, Dec 27, 2017.

  1.  
    mahiluana

    mahiluana Well-Known Member

    That`s 3W epistar full-spectrum chip ~ 1800K // 12 in row / 9 paralell (@30W)


    [​IMG]

    if you drive them < 100mA - they are pretty efficient like all chips
    @ ~ 13% of max. load.(700mA)
    can cost you something like 1,30US$ / W


    S6002070.JPG
     
  2.  
    Budzbuddha

    Budzbuddha Well-Known Member

    QB are available in different Kelvin options - and if boards are VF matched as a set you could run a rig with a full mixed option or even a 3000k/3500k ( diagonal from each other ) .
    I am currently running a 3000k and 3500k grow -

    3000k main rig - 3500k as supplemental

    These are on their last legs ( 2 weeks or less til harvest ) - no added deep red on this last couple weeks .... Just full light. Even though ,I grow for personal use only and don't need 20 plants of one strain , I prefer variety and grow pairs perpetually ( 2 week runs between ) .....

    image.jpeg image.jpeg image.jpeg

    My next experiment will be a 3000k / 4000k grow mix -

    image.jpg
     
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  3.  
    Rocket Soul

    Rocket Soul Well-Known Member

    Hey M, do you have a link on that or any more info, like parmap? Ive been interested in using this spectrum for supplemental for some time. Or growlog w these?
     
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  4.  
    mahiluana

    mahiluana Well-Known Member

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  5.  
    Toohighmf

    Toohighmf Well-Known Member

    How many of these strips of deep/far red would you use to 625w of QB? How many royal blues?
     
  6.  
    welight

    welight Well-Known Member Rollitup Advertiser

    I would use 1 deep red board per 100w, what are you looking to use royal blue for?
    Cheers
    Mark
     
    Last edited: Jan 9, 2018
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  7.  
    Toohighmf

    Toohighmf Well-Known Member

    This is definitely more of what I’m looking for. Question is how many photo reds and how many royal blues do I use with a 1-3w star? 6 red vs 3 blue?
    https://www.ebay.com/i/261513399224...3D711-117182-37290-0%26rvr_id%3D1413421742140
     
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  8.  
    Randomblame

    Randomblame Well-Known Member

  9.  
    Toohighmf

    Toohighmf Well-Known Member

    Yo Randomblame, thank you!
    6500k with 3000k qb’s? At what ratio?

    Also, 3 or 4 to 1 Red to blue, but what ratio from 3000k QB to deep Red? What drivers would you use?

    Thanks so much. Really appreciate your insight
     
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  10.  
    welight

    welight Well-Known Member Rollitup Advertiser

    I would agree for Bloom, our boards Star or Strip use XPG-3 Royal blue(600mw) these have greater photon performance than XPE-2 Royal Blue
    Cheers
    Mark
     
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  11.  
    Toohighmf

    Toohighmf Well-Known Member

    I’ve heard good things about cutter. Will definitely check you out when I figure what I’m actually doing. Thank you.
     
  12.  
    Toohighmf

    Toohighmf Well-Known Member

    Trying to build a pre-programmed, programmable DMX app controlled hybrid that will excel in both veg and bloom.
     
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  13.  
    Randomblame

    Randomblame Well-Known Member


    Sounds interesting, mate.
    Have a look at Meanwell's HLG-xxxH-Cxxx "D2" series. These drivers has a build-in programmable digital timer/dimmer and could be very useful for a project like yours.

    https://encrypted.google.com/url?sa...8934849.html&usg=AOvVaw21mtb_tveuYvFE3hDO_6ka
     
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  14.  
    Randomblame

    Randomblame Well-Known Member


    Yepp,
    up-to 730mW @350mA is really good and with ~2,8μMol/J it's probably the best blue diode available ATM.
    Screenshot_20180112-080830.png
     
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  15.  
    Randomblame

    Randomblame Well-Known Member


    That depends on whether you want to use it as a basic lighting or just as an "adjusting screw" to enhence the spectrum. As spectrum enhancement I would add 5% 420-440nm and 10% 660-680nm, which completes the spectrum at both ends. Believe it or not a bit of purple light can have a visible effect on the resin/terpene formation.

    As base light you could add up-to 50% or more deepred to a qboard and still have enough blue to get compact growth but it would be really expensive to use such an amount of additional mono's. The best photored XP-E's are ~57% [email protected] which is in the same range as a qboard but it costs you much more to build a board that generates as much light as a quantum board.

    So in my opinion mono's are only useful to tweak and optimize the spectrum. But what I really like is a 50:50 mix of different warmwhite CRI's to get a good(if not the best) red : deep red : far-red ratio that optimally covers the range of 590-730nm.
    Vegging with 3k/CRI80 and flowering with additional 3k/CRI90.

    BTW,
    To just add coolwhite to Quantumboards Samsungs H- or Q-Series strips in 1ft length fits perfect and use the same(F-) or better diodes(Q-Series).
     
    Last edited: Jan 12, 2018
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  16.  
    welight

    welight Well-Known Member Rollitup Advertiser

    and its 80% wall plate eff
    Cheers
    Mark
     
  17.  
    GrowLightResearch

    GrowLightResearch Well-Known Member

    There is nothing more economical than the Samsung F-Series and Bridgelux EB Gen 2 strips.
    You cannot manufacture a strip at a lower cost than the retail price of these strips.
    What is needed is some deep red strips to complement these strips.

    The most economical PCB panel is 16" x 22" so the strips should be 22" and they will match the length of the BXEB-L0560Z. I would make them thinner than the EB strips. The Samsung strips fit in many off the shelf aluminum profile extrusions where the EB do not.

    Each strip would have about 20 LEDs where the forward voltage matches two of the BXEB-L0560Z in series.
    The deep blue strips would need to have about 16 LEDs to match the red forward voltage.

    I find the OSRAM Olson SSL 150s deep red to be the best deep red LED today. The 150 has better uniformity over the SSL 120 and 80s. The Lumiled Color C line (same as Sun Plus 20) ahve a great view angle for uniformity as well but the OSRAM are cheaper and easier to re-work. The Color C are too small to work with.

    Cree XP-3G is the best deep blue. The Cree deep red is pretty good too.
    You can make a dual footprint on the PCB that will accommodate both Cree XP and OSRAM Olson.

    Deep blue is not really needed when white LEDs are being used.

    As far as the ratio of white to red, Cree used 144 White XP-3G 4000K and 48 deep red to match the spectrum and power of a Gavita Pro HPS 1000W with a Philips Bulb. So the WR ratio would be 3:1.

    The EB of F strips are much lower powered than the Cree and OSRAM LEDs. So there would be no need to run them harder than 350 ma. At 1" spacing thermal management may not be required. You could add an adjustable CCR for simple current regulation nullifying the need for matching forward voltages.

    The 3000K to 5700K ratios would be best handled by using two boards, one of each and tune the CCT by regulating the current in each strip separately. Take a look at the Bridgelux Vesta Tunable White Linear stgrips. Each strip has a row of 5000K and 2750K. I do like running them with just the 1750K and not using the 5000K row at all. I do not believe they were intended to be used with both rows running at max current. The problem with with both rows running at max is they get too hot.
     
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  18.  
    GrowLightResearch

    GrowLightResearch Well-Known Member

    I do not see any full spectrum LEDs on epistar.com.tw
    Do you have a part number? Or link to a Epistar datasheet?
     
  19.  
    mahiluana

    mahiluana Well-Known Member

    https://www.aliexpress.com/store/pr...6275.html?spm=2114.12010612.0.0.e6846f11UxIud

    sometimes they are "called" epileds
    but on epileds.com.tw - happens the same

    as we know the only difference to other epistar white chips is the red phosphor
    mix into the layer. LES gets relativly hot and lumens output @ max. current is < 80lm/w

    eg. epistar smd5730 coolwhite can reach 110lm/w
    for the low lumens output most people think, that there is nothing interesting to be dicussed here on riu about the "cheap chinise crap" cobs.

    !...but the incredible low prices for these chips give the possibility to competition.

    if you compare prices you will pay eg. 45$ for 1 x CREEcxb3590 / 2700K 80CRI typ 11908
    driving out 50w /1450mA / 170lm/w it will be very efficient
    driving out 100w /2700mA / 138lm/w it will lose ~23% light efficiency

    for 45$ i can buy chinise crap chips 16 x 50w / 1500-1800K @ 1450 max. current / 80lm/w
    and drive them @ 3,1w / 90mA / ~183lm/w
    widely spreaded with a much better heat management.

    i estimate ~23% light efficiency gain with 50% load also for these cheap cob chips
    specially very warmwhite (1800K ) chips can profit by low current efficiency
    but in the whole internet you won`t find any datasheets or further information

    3 x 100W cob full spectrum 1800K @ 10w :shock:......are impresive :roll::cool::cool:

    S6002113.JPG
     
  20.  
    Randomblame

    Randomblame Well-Known Member

    Attached Files:

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