LED strip Lords. I need your guidance.

welight

welight

Well-Known Member
Gond00s said:
not gonna lie the strips are banging it’s just the connectors.
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hi Gond00's, Im happy to drop you a coupon for the hassle. The issue was we attempted to use the metal wagos on the 14mm strips as a retrofit to make them 'solderless' in retrospect the pad was not big enough, we rectified this with the new 24mm wide strips by laying the board with the correct footprint. the connectors themselves are great and we now are mounting the boards with either the wago or Molex litetrap metal connectors, the Molex are nice as the will take down to 14AWG wire for heavier current and also work well with the new footprint. Molex image below
IMG_20200512_153722.jpg
As you have found if they do come off you can recover by just soldering wire to the pads. Im happy the strips are rocking it for you despite the hassle and as I said, happy to provide a purchase coupon to you for your troubles
 
Gond00s

Gond00s

Well-Known Member
welight said:
hi Gond00's, Im happy to drop you a coupon for the hassle. The issue was we attempted to use the metal wagos on the 14mm strips as a retrofit to make them 'solderless' in retrospect the pad was not big enough, we rectified this with the new 24mm wide strips by laying the board with the correct footprint. the connectors themselves are great and we now are mounting the boards with either the wago or Molex litetrap metal connectors, the Molex are nice as the will take down to 14AWG wire for heavier current and also work well with the new footprint. Molex image below
View attachment 4564500
As you have found if they do come off you can recover by just soldering wire to the pads. Im happy the strips are rocking it for you despite the hassle and as I said, happy to provide a purchase coupon to you for your troubles
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ahh makes sense its just I wanted more chips per strip so I can drive them a little bit lower. so in this pic that's not the 2065 just a different version of it. idk about the coupon I just want a 3500k 14mm strip replacement that's it. because im pretty sure the 2065 were the ones just werent good. i like the 104118 connectors way more than the 2065 and ill pay extra per connector if i could. but pretty happy with the lights.
 
Rocket Soul

Rocket Soul

Well-Known Member
Airwalker16 said:
I'd use em both at the same wattage I'm sure for an even 4000k if I used them.
But I have a spare HLG-185H-C1400B I'd like to use so I need to find some 2' strips with really low voltage.
Any ideas?
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Id go for 14 eb gen3 of whatever flavor, 1 foot for 1400ma or 2footers 700ma, 7x2 sp.

Or tbh, there are jus so many funny ways of doing this. How about 2 strings of: 3 vestas 2 ft, with the ability to send he power thru either or both channels, and one 24V 660 strip and 2 blux eb gen3 2 footers in whatever color youd prefer?
Tape them all to 24x16" alusheet and you made your own diy board similar to any of those 240 kits? Your running up to 6x192 + 4x118 + 20ish red diodes, all at comfortable levels and spending i guess somewhere around max 150ish + driver? For your own custom spectrum, with a vegg/flower/fullcycle mode, 15% redsupp and over 1000 diodes? And some decent 90cri diodes as well, on th cheap? Price obviously depending on what you get from where. As long as youre sticking around 20-24V per strip and adding up to around 140V, then double it in 2 strings, your good. You want a 30V uv strip instead? Skip one vesta and throw in another eb gen3 and you got another 5V to spare. Go crazy. But remember, 2 strings of exact same strips so you can hit that ideal 700mA current which most of these work fine with.
 
Airwalker16

Airwalker16

Well-Known Member
I'm trying to to find the double row 1' F series strips and can't. All I gather from the data sheets is LT-F284B but that's not bringing up jack shit..do any of you have a link to them?
 
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loco41

Well-Known Member
Airwalker16 said:
I'm trying to to find the double row 1' F series strips and can't. All I gather from the data sheets is LT-F284B but that's not bringing up jack shit..do any of you have a link to them?
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I was just looking at arrow and found these 4000k double rows for under $8. They are the 2 footers though, so again I probably mislead you, but figured I'd put it out there. Seems like a really cheap price and I am thinking about grabbing some, but I never really looked into the f series strips too much and don't really know their normal prices too much. I would be buying just because it seems a good deal and eventually they will find some space..

edit: sorry forgot a link for you. https://www.arrow.com/en/products/si-b8t521560ww/samsung-electronics
 
Humple

Humple

Well-Known Member
loco41 said:
I was just looking at arrow and found these 4000k double rows for under $8. They are the 2 footers though, so again I probably mislead you, but figured I'd put it out there. Seems like a really cheap price and I am thinking about grabbing some, but I never really looked into the f series strips too much and don't really know their normal prices too much. I would be buying just because it seems a good deal and eventually they will find some space..

edit: sorry forgot a link for you. https://www.arrow.com/en/products/si-b8t521560ww/samsung-electronics
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Haven't really been keeping up with strip prices but that looks like a killer deal.
 
Airwalker16

Airwalker16

Well-Known Member
Airwalker16 said:
I'm trying to to find the double row 1' F series strips and can't. All I gather from the data sheets is LT-F284B but that's not bringing up jack shit..do any of you have a link to them?
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I found them. Looks like min order of 160 in every CCT. WONDER WHY THAT IS?
 
L

loco41

Well-Known Member
loco41 said:
I was just looking at arrow and found these 4000k double rows for under $8. They are the 2 footers though, so again I probably mislead you, but figured I'd put it out there. Seems like a really cheap price and I am thinking about grabbing some, but I never really looked into the f series strips too much and don't really know their normal prices too much. I would be buying just because it seems a good deal and eventually they will find some space..

edit: sorry forgot a link for you. https://www.arrow.com/en/products/si-b8t521560ww/samsung-electronics
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So not trying to start a crazy buying trend, but I bought 8 of these a few hours ago at $7.70 a piece. Had to pay an import fee of 13 dollars and with tax total came to like $80 for 8 strips. Price is back up at $23 per strip again now, just a heads up for if anyone is in the market for some 4k strips and wanted to keep an eye on them.

Again, not sure what I'll end up doing with them, but figure I could always supplement them if I wanted. I also officially retire from buying any kind of led lighting until i can use what I have already..
 
Airwalker16

Airwalker16

Well-Known Member
loco41 said:
So not trying to start a crazy buying trend, but I bought 8 of these a few hours ago at $7.70 a piece. Had to pay an import fee of 13 dollars and with tax total came to like $80 for 8 strips. Price is back up at $23 per strip again now, just a heads up for if anyone is in the market for some 4k strips and wanted to keep an eye on them.

Again, not sure what I'll end up doing with them, but figure I could always supplement them if I wanted. I also officially retire from buying any kind of led lighting until i can use what I have already..
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I'm almost certain YOU BUYING those triggered the price increase. It was talked about earlier in this thread by someone. It's on some kind of auto price fixer. If people don't buy them within a certain amount of time, price reduces again.

sethimus said:
i bought mine after the price went up first, next day it was at 5$ again. i suspect there’s a robot acting on demand. right after i ordered mine the price went up again.
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Rocket Soul

Rocket Soul

Well-Known Member
Airwalker16 said:
I'm almost certain YOU BUYING those triggered the price increase. It was talked about earlier in this thread by someone. It's on some kind of auto price fixer. If people don't buy them within a certain amount of time, price reduces again.
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Just make sure these are a decent gen chips, some of these deals were for 120lum/w chips...

I wonder when someone will setup a thread on figuirng out the algorithm of this, theres a lot of brainy and data driven people around here...
Id follow just for rhe brain kicks, but as is now, i got my cheap double strip locked down with Vestas...
 
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loco41

Well-Known Member
Airwalker16 said:
I'm almost certain YOU BUYING those triggered the price increase. It was talked about earlier in this thread by someone. It's on some kind of auto price fixer. If people don't buy them within a certain amount of time, price reduces again.
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Dang, well hopefully they drop back down soon and some more people can get a discounted price too if needed.

Any idea on what current these would be able to be driven at without needing much more than some angle/flat bar aluminum? Initial thought being run 4 of them at around 25 watts each via an xlg-100 for a super cheap/efficient set up for veg. Also was thinking pairing these 4k up with some pc red buddies strings would be a nice combo of spectrums and be able to run close to canopy if needed. As always though, thinking way down the road and am really just trying to justify my purchase..

Rocket Soul said:
Just make sure these are a decent gen chips, some of these deals were for 120lum/w chips...

I wonder when someone will setup a thread on figuirng out the algorithm of this, theres a lot of brainy and data driven people around here...
Id follow just for rhe brain kicks, but as is now, i got my cheap double strip lockdown with Vestas...
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I am definitely prone to making mistakes in regards to reading and understanding data sheets properly, but I'm pretty sure these are the double row f-series with the lm561c chips. I figure each strip was essentially half of a qb v1 with better spread, so (again in my head) ended up with something like 4xqb to my door for $80. I almost bought the vestas as my first dive into strips before I went on this spree of buying strips, but kept holding off because of the 2 channels for some reason. I would love to see you final build and wiring on the fixture you are making now when it's complete if you don't mind though. If I had your skills and knowledge, I probably would have bought those and made something up before I bought the other kinds.
 
E

eLod

Member
@loco41 i've also ordered like 9 pieces of those 2ft samsung f strips (4000K) for like 7.5EUR each (also to EU shipping was free and no customs/vat as in incoterms DDP - just signup for arrowperks, for the free tier you get DDP free international shipping, not sure about US though). they were just above 1700 stock after i've ordered them (on may 13) they arrived in exactly 1 week (still waiting for the hlg driver, alu strips and the thermal tape), so i think you took half of those 20 sold. i've checked the price a couple times after i've bought them and i haven't seen any jump until now, but i had other samsung strips recommended from arrow (when i started my research) that were also fluctuating price like this, so it seems it's a common practice of arrow. i agree, the 7-8EUR price is very good for these strips.

edit: here's the datasheet for them https://cdn.samsung.com/led/file/resource/2019/10/Data_Sheet_F_Series_G3_CRI80_Rev.1.1.pdf

edit2: if you are interested in thermal stuff for these search the forums, i have some posts linked in my thread https://www.rollitup.org/t/lightning-help-for-non-weed-setup.1015359 but they are buried. in general if you are going with very low current you can get away without heatsinks, but simple alu profiles should be easy to get and relatively cheap.
 
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Rocket Soul

Rocket Soul

Well-Known Member
Rocket Soul said:
Just make sure these are a decent gen chips, some of these deals were for 120lum/w chips...

I wonder when someone will setup a thread on figuirng out the algorithm of this, theres a lot of brainy and data driven people around here...
Id follow just for rhe brain kicks, but as is now, i got my cheap double strip locked down with Vestas...
Click to expand...
So i looked into this, cauuse its a bit fishy these prices. The 5$ ones on sale a while back where not latest gen so i wanted tto make sure this wasnt another case of arrow pushing junk on us. I couldnt quite make out if this was latest gen but it looks like it. But then i realised that verical has them @7 something right now but it says something weird about the supplier being some chinese company. I think it may go a bit like this (though im not sure, i dont know how verical operates): some company from china puts cheapo (and maybe old gen or counterfit,who knows) samsung strips on sale. This goes into octopart or findchips. Arrows computer system picks up on this and lowers prices automatically, but on genuine strips. Riu splurges and buys loads. Somebody at arrow realize whats goiing on and prices goes back up.
This would mean im assuming or guessing with no any real proof:
1 Verical have different "sellers" a bit like ebay. Link: https://www.verical.com/pd/samsung-led-modules-SI-B8T521560WW-5430444?utm_campaign=octopart_2018&utm_currency=EUR&utm_keyword=SI-B8T521560WW&utm_medium=aggregator&utm_content=inv_listing&utm_source=octopart

Cant quite make outt what it means. In any cases theres strips for less than 8$ of to me unknown quality.

2: Arrow has a search algorithm pushing their prices down to match lowest international price. When they later on see whats going on the priices go back up. I cant see how a large distributor like that would make "crazy friday" popup sales for 24 hours, maybe in retail yes, but i dont see that in global distribution.



What do you guys think?
 
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loco41

Well-Known Member
Rocket Soul said:
So i looked into this, cauuse its a bit fishy these prices. The 5$ ones on sale a while back where not latest gen so i wanted tto make sure this wasnt another case of arrow pushing junk on us. I couldnt quite make out if this was latest gen but it looks like it. But then i realised that verical has them @7 something right now but it says something weird about the supplier being some chinese company. I think it may go a bit like this (though im not sure, i dont know how verical operates): some company from china puts cheapo (and maybe old gen or counterfit,who knows) samsung strips on sale. This goes into octopart or findchips. Arrows computer system picks up on this and lowers prices automatically, but on genuine strips. Riu splurges and buys loads. Somebody at arrow realize whats goiing on and prices goes back up.
This would mean im assuming or guessing with no any real proof:
1 Verical have different "sellers" a bit like ebay. Link: https://www.verical.com/pd/samsung-led-modules-SI-B8T521560WW-5430444?utm_campaign=octopart_2018&utm_currency=EUR&utm_keyword=SI-B8T521560WW&utm_medium=aggregator&utm_content=inv_listing&utm_source=octopart

Cant quite make outt what it means. In any cases theres strips for less than 8$ of to me unknown quality.

2: Arrow has a search algorithm pushing their prices down to match lowest international price. When they later on see whats going on the priices go back up. I cant see how a large distributor like that would make "crazy friday" popup sales for 24 hours, maybe in retail yes, but i dont see that in global distribution.



What do you guys think?
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I can't speak on the quality or authenticity of the strips I just purchased, but should have them in hand on tuesday or wednesday of next week. I will throw some pictures up and hopefully you or others can validate them. To be honest, when I saw the price I assumed I was reading something incorrectly or something was fishy, but I am still hopeful that these are legit f-series strips using the lm561c diodes.
 
Humple

Humple

Well-Known Member
loco41 said:
I can't speak on the quality or authenticity of the strips I just purchased, but should have them in hand on tuesday or wednesday of next week. I will throw some pictures up and hopefully you or others can validate them. To be honest, when I saw the price I assumed I was reading something incorrectly or something was fishy, but I am still hopeful that these are legit f-series strips using the lm561c diodes.
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I wouldn't be too concerned that the strips aren't using legit LM561Cs. I don't see Arrow fucking up their inventory to the point that they're selling you some bunk, but under an F Series part number. And to confirm, the part number of the strip in question is indeed a genuine 561C-based F Series strip (per Samsung's datasheet). Looks to me like you just stumbled upon a truly great deal.
 
Rocket Soul

Rocket Soul

Well-Known Member
loco41 said:
I can't speak on the quality or authenticity of the strips I just purchased, but should have them in hand on tuesday or wednesday of next week. I will throw some pictures up and hopefully you or others can validate them. To be honest, when I saw the price I assumed I was reading something incorrectly or something was fishy, but I am still hopeful that these are legit f-series strips using the lm561c diodes.
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Id say theyre legit, but the ones on sale from the chinese supplier of verical are probably not. I think them going on sale triggered a price drop at arrow which then would have been corrected.
 
GiveMeKnowledge

GiveMeKnowledge

Active Member
Hi everyone. Hoping for a little help... I’m trying to configure a strip light for a 3x3 canopy . I’ve been in contact with mark at cutter who has helped with strip placement but I’m wondering wether these can be mounted to just a single sheet of aluminium? Say 5mm-6mm thick. I can then mount that to some 2020 extrusion for hanging and mounting drivers etc. Tia . A691CEB0-7492-45FB-A6CE-9306435398BE.jpeg
 
Airwalker16

Airwalker16

Well-Known Member
GiveMeKnowledge said:
Hi everyone. Hoping for a little help... I’m trying to configure a strip light for a 3x3 canopy . I’ve been in contact with mark at cutter who has helped with strip placement but I’m wondering wether these can be mounted to just a single sheet of aluminium? Say 5mm-6mm thick. I can then mount that to some 2020 extrusion for hanging and mounting drivers etc. Tia . View attachment 4573301
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Absolutely. The hlg550 used a 5mm thick sheet. You'll be just fine.
 
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