Oneshark
Well-Known Member
Not sure if /s or not but to answer your question, those strips are the main source of mid power lights for this build.What are the LED strips for?
Not sure if /s or not but to answer your question, those strips are the main source of mid power lights for this build.What are the LED strips for?
Is that USD or yours?USD229.50/reel
Cheers
Mark
Yeh just saw that.it says usd lol
Sweet you just cut them and glue them on? How much intensity do they give when finished?Not sure if /s or not but to answer your question, those strips are the main source of mid power lights for this build.
They already have a 3M adhesive tape at the back so I just cut them at lengths and peel off the tape's covering and I'm good to go.Sweet you just cut them and glue them on? How much intensity do they give when finished?
Thanks Joe! And sorry man I was planning to tag you here but don't know how. I also talked to Vincent regarding the alternating diodes and he said those would require them designing new pcb as the ones currently made are for the Epistar chips or for the Samsung, they have a strip design available but for the lower diode models.Watts up OneShark? Lights lookin good! Waiting on a reply from Mr Hu about my planned lights now.
Hey Oneshark,I have really no idea, but stumbled upon a voltage drop calculator during my research and that at the end of my 2.5 strip, I lose 0.2v but the Mean Well drives them perfectly. Also the lower the AWG wire no., the smaller the V drop. I used AWG 18.
Oh. Did not know about those as I only know some basic electronics but thanks for the heads up! Would research those strips and check them out. And maybe try them on my next build. Are they like these strip where you just plug one end to a driver and they'll go?Hey Oneshark,
You will not only see voltage drop through the length of the strips, this many resistors between the LED's also turn a lot of current into heat.
So these strips are not as efficient as you might think. ~140-150lm/w maybe?
You should have searched for CC strips where no resistors are needed. They are available, I've seen them on alibaba!
I guess it's because they're sources directly from China's factories and that everything arriving at western countries increases prices instantly (bureaucracy and taxes.) Also maybe because they already have the design and equipment running and have done their R&D with these strips for other bigger clientele before me (e.g. Someone ordered 50,000 meters of this before, paying for the R&D and stuffs and I'm just piggybacking on them) and we all know that labor cost on China is close to nothing.And compare the prices.
With your price you pay less (26$ :300 led's =0,0867$/pcs) for a single LED as Mark offers(230$ :2500pcs =0,092$/pcs) and this including production costs.
Still sure that these are real S6 bins?
Oh. Did not know about those as I only know some basic electronics but thanks for the heads up! Would research those strips and check them out. And maybe try them on my next build. Are they like these strip where you just plug one end to a driver and they'll go?
I guess it's because they're sources directly from China's factories and that everything arriving at western countries increases prices instantly (bureaucracy and taxes.) Also maybe because they already have the design and equipment running and have done their R&D with these strips for other bigger clientele before me (e.g. Someone ordered 50,000 meters of this before, paying for the R&D and stuffs and I'm just piggybacking on them) and we all know that labor cost on China is close to nothing.
As for the authenticity, the company is certified and accredited by Samsung. But if they dupe me then I'll never really know. Only yield could tell.
Thanks again!
Did a quick look at Alibaba and some guides on CC led strips and it seems to be the better choice. Checked a HLG-185H and the lowest they go was at 500mA, so I'll have to figure out some series/parallel strings wiring for my intended fixture. Thanks for the heads up again! Would definitely use this on my next build.They are constant current so they need series wiring but you can also wire them parallel with a matching driver.
It depends on voltage..
Most hardstrips like Samsung H- or F-Series are wired in series-parallel circuits of 8pcs in series and 6 or 9 of these little strings in parallel. So they need ~22,5v(8x~2,8v) and run at 480mA current in the case of the H-Series, which means each cluster/led get's 80mA.
With this strips, for instance, you can use still use your 24CV driver.
The current would be divided by the strips used. Maybe you need to adjust output voltage via internal voltage poti to avoid thermal runnaways, but it should work.
There is a "EB-series" related thread with lots of usefull infos about strips and how to wire them.
https://www.rollitup.org/t/bridgelux-eb-series-build.928676/
Wow...you have quite the selection of flex LEDs on your site. Please include the numbers of your strips like the build here. Thanks.Anyone chasing S6 Samsung LM561C I can support, 2500 pcs per reel, delivery 2- 5 working days
Cheers
Mark
Nice, anyway you could take some light intensity measurements under them either with a PAR or lumen meter?They already have a 3M adhesive tape at the back so I just cut them at lengths and peel off the tape's covering and I'm good to go.
With the light evenly spread out, the output is much softer below every row of diodes as compared to QB's where all 304 diodes are crammed on a size of a bond paper. I can lower them much further, they're currently 6 inch above my canopy dimmed down to 140w, as I'm acclimating my plants before running it full or until they experience light burn. But they're still very, very bright.
And with 600 points of light source at different angles, there's no dark area even inside my canopy.
No worries, man. I'm glad I stumbled across it. I think you can tag someone by typing @username, and as you're typing, you'll see names spelled similarly pop up to tag.Thanks Joe! And sorry man I was planning to tag you here but don't know how. I also talked to Vincent regarding the alternating diodes and he said those would require them designing new pcb as the ones currently made are for the Epistar chips or for the Samsung, they have a strip design available but for the lower diode models.
@KaliKushCo The company is Shenzen Bright Technology Industrial Ltd., on Alibaba. They have all kinds of options. Happy hunting!@Oneshark, can you point me in the right direction for a supplier of legit LM561c? Thanks!