Can not post any link till 20th of January. Will receive board on 7 of January. 1 week for testing and reporting it to owner of shop, than compare my results with its result. Than if everything is within parameter, I can post link and he will start sellingCan you post a link? Thanks
New style Samsung LM561C Board
- Thread starter chuckduck
- Start date
I have found this guy at a cannabis grow product exibition, he was showing some cities 1212 fixture and a couple of prototype.He was quite friendly and we got in touch via skype.I am quite confident his product will be with genuine s6 az bin.Biggest feature is no need for heatsink, so will save both on heathsink cost and shipping.He will also provide me some aluminum C , just to test max wattage with no heatsink at all and also with a "heasy to assemble" custom heathsink.This kind of solution will allow customer to obtain heatsink for few € at zero shipping cost
nc208
Well-Known Member
+1, it sucks those outside of the states get double dipped on customs.
Fra91
Member
I bought 16 boards and once I see the authenticity I have to order 300 tables
nc208
Well-Known Member
What are you using to compare to?
Fra91
Member
I test led to a referral laboratory in my country, since I have to buy 300 pcb board I feel obliged to do so.
nachooo
Well-Known Member
Sorry to point that the word mariconsuelo in spanish does not mean friend... and also the correct way to use this word is mariconzuelo, which in fact means: little gay . and is used here in Spain to name gay people in a despective way.
BuddyColas
Well-Known Member
You mean in a deceptive way?
nachooo
Well-Known Member
I thought that that word existed in English, but apparently not...anyway is phony cause is being used in english , there are some websites that explain more or less the Word despective for english people...seems to be a word taken from spanish in some way..by the way, the exact meaning is explained in this link: https://www.urbandictionary.com/define.php?term=despective
Is not like deceptive
Also mariconsuelo can be a female name, that combines two clasical catholic female names: Maria and Consuelo
Theirongrow
Member
Before greetings to all this is my first post
I spent more than 2 weeks reading in the forum to buy some cobs or boards and change my old 600hps, initially decided to buy
quantum boards but shipping and availability discards, being in Europe I see the ebay and decide to buy them before before
I see this thread and they say that it is not sure that they are LM561c S6 and it can be LM561B + and I am going to the sounding of a led calculator that compares the ones that put on the first DIY with Quantum Boards
that apparently are LM561c top Bin, but that is not on the post they say them are S6 and as seen in the calculator they carry S5,
the comparative throws a result that I would never think of here, they have it and they can judge it for yourselves.
Suppose that the ebay parts have lm561B + and that the flow is the same for both and as read in the first post of QB is AZ O A1 the difference between the two boards is almost priceless
but let's suppose that since the LM561B + is cheaper, we have AZ and from the QB we are going to eat an A1, as we can see in the calculator the LM561B + S5 to the current going ebay boards has more eficacy than the LM561c S5 to the current that run the quantum plates
I also see that NextLight Mega LED Grow Light also has LM561B + and cheap has nothing.
it is more if ever in the calculator the LM561B + S5 Az has more efficiency than the LM561C S5 A1 to the same current.
We continue with the search of the LM561c S6, I build with Samsung strips and I have insurance that I have original LM561C S6?
We go to the F Series datasheet and at no time they say that they are S6 as we know the practices
of the big companies is the benefits I wonder if they will not be S4, sure not are S6.
The question is someone has seen real LM561C S6 where is it? exists or is it just a myth? LOL.
I think in the end we buy eBay boards since also quantum boards are not real LM561C S6 are S5
and the ebay boards are Lm561c or lm561B+ in the end have more eficacy than the quantum boards,
maybe in the end is better an LM561B+ with good Vf than a LM561C with a normal Vf and flux
I have them closer and people say they are working very well.
I spent more than 2 weeks reading in the forum to buy some cobs or boards and change my old 600hps, initially decided to buy
quantum boards but shipping and availability discards, being in Europe I see the ebay and decide to buy them before before
I see this thread and they say that it is not sure that they are LM561c S6 and it can be LM561B + and I am going to the sounding of a led calculator that compares the ones that put on the first DIY with Quantum Boards
that apparently are LM561c top Bin, but that is not on the post they say them are S6 and as seen in the calculator they carry S5,
the comparative throws a result that I would never think of here, they have it and they can judge it for yourselves.
Suppose that the ebay parts have lm561B + and that the flow is the same for both and as read in the first post of QB is AZ O A1 the difference between the two boards is almost priceless
but let's suppose that since the LM561B + is cheaper, we have AZ and from the QB we are going to eat an A1, as we can see in the calculator the LM561B + S5 to the current going ebay boards has more eficacy than the LM561c S5 to the current that run the quantum plates
I also see that NextLight Mega LED Grow Light also has LM561B + and cheap has nothing.
it is more if ever in the calculator the LM561B + S5 Az has more efficiency than the LM561C S5 A1 to the same current.
We continue with the search of the LM561c S6, I build with Samsung strips and I have insurance that I have original LM561C S6?
We go to the F Series datasheet and at no time they say that they are S6 as we know the practices
of the big companies is the benefits I wonder if they will not be S4, sure not are S6.
The question is someone has seen real LM561C S6 where is it? exists or is it just a myth? LOL.
I think in the end we buy eBay boards since also quantum boards are not real LM561C S6 are S5
and the ebay boards are Lm561c or lm561B+ in the end have more eficacy than the quantum boards,
maybe in the end is better an LM561B+ with good Vf than a LM561C with a normal Vf and flux
I have them closer and people say they are working very well.
Randomblame
Well-Known Member
You trust Samsung to use other bins, as their datasheets suggest, but trust an Alibaba seller to supply you with better bins?!?
Take eg. Samsung's H series and determine the current of a single diode. You will come to 80mA. The datasheet says 180lm/w for 3000°k stripe at 80mA. Now enter 80mA into the calculator tool and test out which binning you need to get as close as possible to 180lm/w at 80mA. This is either S6/A1 or S5/AZ and Samung binned the strips very accurately as they indeed all work within 0.1v tolerance.
I am not sure if a manufacturer, who by the way sells copies of his own well-known customers, for just a third of the price at the back door, actually only uses the best bins for his copies... ? You?
I rather think he mixed what is currently available without regard to thermal runaway or uneven coverage and for sure without wasting any thoughts to his back door customers..
But that's just my 2¢...
Randomblame
Well-Known Member
Genuine Samsung stripes (whether H or F series) are the surest way to get to Samsung's top bin diodes, because Samsung first and then all others. It's the same as in any other areas (display, SoC's, ...)
The Q-Series strips for example was already available when you only could buy rolls with mixed LM301b bins but no top bins only.
The Q-Series strips for example was already available when you only could buy rolls with mixed LM301b bins but no top bins only.
Humple
Well-Known Member
I'm not quite understanding why you believe Quantum Boards don't use S6.
Theirongrow
Member
it is easy you can read it in the first post of DIY with Quantum Boards.
https://www.rollitup.org/t/diy-with-quantum-boards.927159/
can you say where they say this chips are S6?
https://www.rollitup.org/t/diy-with-quantum-boards.927159/
can you say where they say this chips are S6?
Moflow
Well-Known Member
robincnnWell-Known MemberRollitup Advertiser
↑
Hey , when might you get some more of those passive 120 sinks for the 3070's in,, sold out again on the web page
120 sinks Available now. Ships next week Wednesday
3-4 dozen QB288 will be out at 9PM EST today. All S6 latest flux bin
Will have a dozen slate 1 Heatsinks. Slate 1 will be 50% off.
Sorry, trying to get more stock asap. These are not just boards, we put lots of time and thought into design and latest diodes. Lot more cool Heatsink and cost effective cooling solutions are coming out next month. Thanks
Added photos but still need to update numbers as these QB288 are 54V boards
https://horticulturelightinggroup.com/collections/diy/products/qb288-quantum-board
www.northerngrowlights.com
robincnn, Mar 10, 2017Report
#2526LikeReply
lukio
Well-Known Member
it's easy...you should carry on reading...the first boards were S5
Last edited:
Humple
Well-Known Member
That's a very long thread, dude. Read on...
Theirongrow
Member
@Randomblame I'm not nobody to insure anything and of course I would not risk to buy 500 boards to Hansion, Mofue or others from
these scammers can now send me something real as a sample and then in the big order to do the fraud again, these people are
can expect anything after seeing the fraudulent practices that they have as business with their large clients, HLG were the first
in being scammed by these people as I read Hansion was their first provider and I think they had to leave them for being swindled again and again
If they cheat people who ask for thousands of boards that they will not do with a small order of 50 or 500 boards, I do not even want to think about it.
But neither of us can assure that Samsung mount S6 in the F-Series since they do not ensure it anywhere in their datasheets and if they are S5 the 561B + have almost the same performance to the conditions that will work.
these scammers can now send me something real as a sample and then in the big order to do the fraud again, these people are
can expect anything after seeing the fraudulent practices that they have as business with their large clients, HLG were the first
in being scammed by these people as I read Hansion was their first provider and I think they had to leave them for being swindled again and again
If they cheat people who ask for thousands of boards that they will not do with a small order of 50 or 500 boards, I do not even want to think about it.
But neither of us can assure that Samsung mount S6 in the F-Series since they do not ensure it anywhere in their datasheets and if they are S5 the 561B + have almost the same performance to the conditions that will work.