New style Samsung LM561C Board

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Dave455

Well-Known Member
Randomblame said:
Hi Mo,
Found them yesterday on e3ay sold as full spectrum grow tubes. Each strip inside the 2ft. tubes contains 48 SMD2835 diodes with a 1850°k phosphor layer. I've ordered 10 2footers yesterday and will test them as soon as they arrive but I'm pretty sure the efficiency is not comparable, maybe 70-80lm/w if any..
Had them first seen on Alibaba, but the shipping costs ... you know? These tubes here use the same strips and I could find them postage free on e3ay. I am sure, if you are looking for the e3ay article number, you will find it on ebay.uk with free shipping.
I'll disassemble them and take the strips out, they're probably built in 8s6p or so, so you can hang them probably on a 24v driver. But I'll see that when I break them down.
I think, in the tubes sits a small 360mA driver, so that the LEDs are running at 60mA(~9w). If so, this gives plenty of room to overdrive the diodes because SMD2835 can handle up to 150mA. One could drive them with up to 900mA/~22w with proper cooling. But thats only my estimations, we will see it soon.

https://www.ebay.de/itm/T8-LED-Pflanzenlampe-Tube-9-18W-60cm-90cm-120cm-Leuchtstoffrohre-Volles-Spektrum/182907252228?_trkparms=aid=555017&algo=PL.CASSINI&ao=1&asc=20160630134825&meid=bed6fa41d4bb44029c91cbc9b495c02a&pid=100507&rk=1&rkt=1&&_trksid=p2045573.c100507.m3226
Click to expand...
danke !
 
D

Dave455

Well-Known Member
Randomblame said:
Yeah! Hard to find those little bastards!
And then only if you take 100 or so.... no luckily not in case of Vero29
Part-No. for Vero18 fresh meat is BXRC-17E4000-B-74(C or D if you want the other versions) and the best way to find what you want is to know the part-no. and apply it into the search engine.

Vero18 food series, only in increments of 100:

https://www.digikey.de/products/de?keywords=BXRC-17E4000-B-74

Vero29/1750°k seems only available in SE edition but you can luckily get only one for ~30$ +VAT:

https://www.digikey.com/product-detail/en/bridgelux/BXRC-17E10K0-C-74-SE/976-1645-ND/7033058
Click to expand...
What about Rapidled amber citizen cobs 2200k ?
 
ANC

ANC

Well-Known Member
This one was about $6 cheaper than the equivalent Meanwell.
It comes in two versions, one with trimpots and one with the 3 way dimmer wire like a meanwell.
The latter has IP67 moisture rating.
 
RainDan

RainDan

Well-Known Member
PSUAGRO. said:
Maybe @RainDan can help you out?I think they ship Internationally? I know they don't sell just the chips but they build on site in san diego, have them in inventory.......dan will usually take care of the RIU community, within reason.

worth a shot(PM a quote), or just add some osram hort 660nm "strips" to 3000k-4000kcobs like random did from the german site.
Click to expand...
Thanks @PSUAGRO. and @Moflow - appreciate the shout out. Happy to help - I do have a variety of 660 nM arrays from LED-TECH and I'd be happy to help you out with what you need. Drop me a PM, or better yet, an email at [email protected].

Have a good day

Regards,
Dan
 
Randomblame

Randomblame

Well-Known Member
PSUAGRO. said:
https://www.led-tech.de/en/OSRAM-Oslon-SSL-80-hyper-red-Array-528nm

You want all hyper red with "white" , plenty of blue already imo

80 degree oslons w reflector/lenses on cobs, 120 if bare ==which I prefer
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Moflow said:
Thanks a million!
:weed:
Click to expand...

I do not want to disappoint you, but these are the strips I ordered 2 years ago for my old COB/mono lights.
The stated 2130mW @350mA (355mW per diode) indicates that they still use the T3T2 binning. But T4 and above would be at least 425mW per diode or 2550mW for a strip, so from this point of view the 8:2 deepred/blue strips are the better choice because they are newer and use the horticulture series which automaticly means T4 or a even better bin is used.

Edit:
Maybe Dan's arrays have better bins and if not @welight /Mark from Cutter.au should have strips with Cree XP-EHE's in photored/670mA. Shipping costs should be the same with dhl.
 
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PSUAGRO.

PSUAGRO.

Well-Known Member
RainDan said:
Thanks @PSUAGRO. and @Moflow - appreciate the shout out. Happy to help - I do have a variety of 660 nM arrays from LED-TECH and I'd be happy to help you out with what you need. Drop me a PM, or better yet, an email at [email protected].

Have a good day

Regards,
Dan
Click to expand...
He really wants some meat (1750k)chips....... see what you can do for him?

Randomblame said:
I do not want to disappoint you, but these are the strips I ordered 2 years ago for my old COB/mono lights.
The stated 2130mW @350mA (355mW per diode) indicates that they still use the T3T2 binning. But T4 and above would be at least 425mW per diode or 2550mW for a strip, so from this point of view the 8:2 deepred/blue strips are the better choice because they are newer and use the horticulture series which automaticly means T4 or a even better bin is used.

Edit:
Maybe Dan's arrays have better bins and if not @welight /Mark from Cutter.au should have strips with Cree XP-EHE's in photored/670mA. Shipping costs should be the same with dhl.
Click to expand...

Very good points random, forgot about the bins.
 
Randomblame

Randomblame

Well-Known Member
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Randomblame

Randomblame

Well-Known Member
PSUAGRO. said:
He really wants some meat (1750k)chips....... see what you can do for him?

Very good points random, forgot about the bins.
Click to expand...

Yeah, sometimes hard to have all those bins and parameters on the screen. There are simply to many and it was just a coincidence that I have used them too and still have the specs in my mind.
 
ANC

ANC

Well-Known Member
Randomblame said:
Are the shots from different boards? I ask because the diodes in the first 2 shots looks more like LM561c as on the last 2 shots. The diodes should look like this one below, especially the ESD device in the lower left corner looks different to a genuie LM561c.

View attachment 4068826
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yes
\
The fakes have a little dark freckle, the real ones have nice curved corners on the coating and those shiny pieces of wire visible through the die.

Remember these all come from the same manufacturing assemblies, it is a bit like CPU wafers, where they grade wafers from the same sheet according to how well they test.
 
T

Theirongrow

Member
Green.Lady said:
Hi, those are the diodes from ebay.es 75€ each board, are they the real deal ?
Click to expand...
These are the copy boards of the fraudulent Jeff from the scammers Shenzen Hansion send to you? definitely they do not make any boards and send to you a bad copy with fake chips.
these Hansion scammers have copies of all the boards of the market with fake chips how can you see on their alibaba page.
In this thread you have a pic of the chips from the eBay seller and not look same.
 
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