DIY with Quantum Boards

Discussion in 'LED and other Lighting' started by robincnn, Nov 19, 2016.


    robincnn Well-Known Member Rollitup Advertiser

    Starting a new thread for DIY build with Quantum Boards.
    Please feel free to post your Mid-Power LED based designs here. Multiple LED Strips fine too.

    Related Threads

    Details of Boards are available here
    • 304pcs Samsung 561C top bin Diodes
    • Estimated LER 321.60 lm/W
    • Estimated QER 4.86 ┬Ámol/J
    • Dimensions 6.833" x 11.25

    Non Dimmable

    • APC-35-350, GSC40B-350 for 35 watts with 1 board
    • Also compatible with LPC-150-1400 (180~305VAC only), LPC-100-700,

    • HLG-80H-C700 with 2 or 3 or 4 boards for 90 Watts
    • HLG-120H-C1400 with 2 or 3 or 4 boards for 170 Watts
    • HLG-240H-C2100 with 2 or 3 or 4 boards for 250 Watts
    • HLG-320H-C2800 with 2 or 3 or 4 boards for 250 Watts
    • Also compatible with ELG-75-C700, ELG-150-C1400, ELG-240-C2100, ELG-200-C1750

    3000K 80 CRI

    Calculating efficiency

    robincnn Well-Known Member Rollitup Advertiser

    180 Watts at wall
    2x Quantum Boards
    1/16th Aluminum L channel
    Total under $300

    Heatsink USA profile used here needs some airflow. Fins too close and not ideal for complete passive.
    Reaches 60C board temps at full power Ta 20C.
    With airflow in tent down to 40C-45C

    DSC_0520.JPG DSC_0521.JPG DSC_0523.JPG DSC_0524.JPG DSC_0525.JPG DSC_0526.JPG
    Last edited: Nov 19, 2016

    robincnn Well-Known Member Rollitup Advertiser

    Apogee SQ-120 and no spectrum adjustment to numbers. So these are minimum numbers. Actual numbers should be higher.
    Why not a better PAR meter. @Stephenj37826 can i have that Lighting Passport now ? You've been playing with it for 3 weeks :finger:



    All numbers in ┬Ámol (photons) m-2 s-1
    With tent measurements the numbers outside 1x1 were not easy to measure so some margin of error.
    2com, Javadog, The Elvis and 15 others like this.
    Budies 101

    Budies 101 Well-Known Member

    What kind of application would this be best used in?

    I like the idea of something like this for a veg rack 2x4. But it seems pretty spendy at 75$ a board when you need 2 boards. I build my veg lights with 4x cxb3070 top bin active cooled for approx 200$, using these boards would put me near $270ish?

    I do really like where this is going, some 5k boards would be great if the cost came way down. We'll see!

    Thanks for the post btw.
    Last edited: Nov 19, 2016
    The Elvis and robincnn like this.

    eminiplayer Well-Known Member

    @David Abrahamson : I'm hoping to use it in a built in wardrobe.


    @robincnn : How close to the canopy do you think I could hang this light at full power?

    Yodaweed Well-Known Member

    These things are going to be weak, you can probably come within an inch of these lights without any issues, they wouldn't bleach and your main issue would be directly touching and burning. I wouldn't bother growing plants with this as the main light source, better as side lighting or a novelty item.

    robincnn Well-Known Member Rollitup Advertiser

    Application for growing plants :weed:

    jk :hug:..
    A great DIY alternative to COB. Better way to make low profile, light weight, high efficiency lamps. No TIM application is needed.
    Heat is spread more and easily manageable. Efficiency is a little higher. More angles of light for minimal shadows.

    without optics.. these boards good for veg lamp where you need a good light spread. They will work great in tent for flowering.
    Great for use where you are limited by overhead height. Great for high efficiency if you under drive them.

    With optics great for application where you need deeper canopy penetration or for use in space with no reflective sides.

    Optics for this Board

    These 3 look good



    Here is @Stephenj37826 Lamp with Optics
    He is using F14344_FLORENCE-1R-ZT25
    Budies 101

    Budies 101 Well-Known Member

    I'm not the best person to ask. If you're vegging in that spot I doubt you need full power. In flower I would stay above 6-8 inch away and watch leaves for any bleaching. I'd also heavily defoliate so you can have buds from top allll the way to the bottom =)
    pop22 likes this.

    Yodaweed Well-Known Member

    Those things lack any type of usable intensity, gonna make some fluffy as hell nugs unless put super close to canopy, why bother...they aren't even a new design those crappy boards been around as long as LEDs been around.
    That junk look familiar?

    It's like we are moving backwards with LEDs instead of forward....
    Nick42 and Friction1957 like this.
    Budies 101

    Budies 101 Well-Known Member

    How much did it cost you to make a 180 watt light? Again I'm at about 200$ with cxb3070 active cooled and I can dim my down or run around 230ish watts. I hang out at about 185 watts in a 2x4. I think it grows very well, but with only 4 cobs as the plants get tall the light is not even. For me even light is not an issue late veg as I shift into the flower room.
    Friction1957 and Yodaweed like this.

    Yodaweed Well-Known Member

    Doubt it, sounds like more nonsense LED claims, those things are junk , at best a side light , you can pickup those boards for cheap on Alibaba , nothing new here just recycled junk tech.
    Friction1957 likes this.

    robincnn Well-Known Member Rollitup Advertiser

    I shared the PAR chart to help you get an better idea.
    Sorry to hear you don't like these bro. Happy growing. :hug:

    Yodaweed Well-Known Member

    They are old tech that will not live up to the hype, you probably made that par chart up to sell more products, so sad what the LED world is all lies and deceptive practices. Bet the next thing is that is a 1000w hps replacement.
    mauricem00 likes this.

    Stephenj37826 Well-Known Member

    Are you out of your head?????? It is late and I think you've sampled one to many dabs bro. Site one place where @robincnn has been dishonest...... He is well respected........ Can you say the same ? Unless you have proof to back up your ridiculous claims you should keep your "opinion" to yourself until you have FACTS IN HAND.

    Yodaweed Well-Known Member

    Bro all you new guys on this site do is make outrageous claims with nothing to back it up, you make these dumb charts up that mean nothing. Those lights are junk PCB board lights, oldest LED grow light tech on the market, if you want to see those things smashed up go watch @REALSTYLES break his mars hydro LED, that's the tech those lights use. Junk PCB board tech.

    robincnn Well-Known Member Rollitup Advertiser

    Boards $161.5
    Driver $55
    L Channel $7
    Misc $10
    Heatsinks $50
    Total= $283.5

    I am working on getting the heastink piece down to $30 for 2x pre drilled anodized pcs
    So soon it will be like $263.5

    162.2 Lm/w System level
    PPF/Watt 2.45


    $200 3070 Active cooled

    157.8lm/w at COB Level
    Add driver loss 7% so 157.8*0.93= 146.75lm/w
    With fan losses around 142lm/W ?
    PPF/Watt 2.10

    Your COB based setup is awesome too :)

    Stephenj37826 Well-Known Member

    I guess time will tell. You wanna bet some $$$ that the numbers he posted are real????? download.jpg

    Yodaweed Well-Known Member

    Move that light 1 inch further and the losses will be tremendous, 12 inches is max range for that thing for sure. PCB boards are junk, small diodes are junk, main issue with running multiple small diodes is they lack any penetration, basic laws of physics prevent it, mainly the law of the inverse square. Small initial value = low intensity. And you don't add all the diodes together to get those numbers they are based on each individual point of light. That's the main reason every single LED maker stopped doing 1 watt diode and all moved to either 3w or 5w even though they are less efficient.

    robincnn Well-Known Member Rollitup Advertiser

    Captain Started a grow. I am making a lamp to test in my tent. NaplamD may be testing these in a 2x2.5 soon.
    Sorry to hear about your lack of knowledge of LED. Its Samsung LED calculator, not some emissions claim from VW
    Give things time to breathe and spawn. I cannot make a lamp and prove it is best lamp ever. Plants take a few weeks too grow.
    Lets wait and see for results if you are not convinced. Enjoy the ride. It will be fun.

    Yodaweed Well-Known Member

    Those aren't new tech I already seen plants grown with those PCB board LEDs, that's what mars hydro uses inside their lights and lighthouse hydro use those too, they are used in most panel LEDs....

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