Samsung LM301B

grisbi

grisbi

Well-Known Member
have an chinese manufacture on alibaba who had that, i wanted to do strip with that, told me than only few manufacture had it in real stock. ill check my mail for you guyz
 
K

kony brado

Well-Known Member
"The current issue and I expect others are experiencing it is that the absolute best flux are not available, they offer a generic code and you will likely get a mix of flux bins, including the best 220LPW bins, seems an odd way to offer product but thats Samsung, we will be looking to start with 3000, 3500 and 4000k bins
Cheers
mark"

With that in mind,I think maybe in few months this diode will be worth something for real life application .
The best bin is only 2-3% better,and it doesn't seems to be available at this time.
Not a big different I guess .
 
PhenoMenal

PhenoMenal

Well-Known Member
LONG STORY SHORT ... this is basically a way of industry saying "some of them are better than others" and dividing them up into "Top Bin = the best performing 10%" etc ... but when they're working on such MICROSCALES and sometimes NANOSCALES, I think we ought to just appreciate that and give them some leeway! They are pushing the boundaries after-all.

There is no perfection to be found at the cutting-edge of human R&D, nor should perfection at such high levels be expected from mere mortals. <--- my most profound sentence ever typed.

Although LED fabrication is a highly refined process, thermal-coefficient mismatch between the epitaxial layers and substrate can lead to strain-induced defects. These defects in turn cause holes and electrons to combine non-radiatively at the junction, which reduces the luminous flux generated by the device. As a result, even LEDs grown side-by-side on the same substrate might display different brightness.
Click to expand...
 
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Randomblame

Randomblame

Well-Known Member
Below is a comparision of 20pcs F- and 20pcs Q-Series strips running at the same current/driver(HLG-240H-C1050B).
As long as you get the F-Series for a better price I see no reason to upgrade. Maybe later if Samsung decides to make a F-Series replacement with 72/144/288 LM301b. But for now based on the currently available strips, I would continue to recommend the F series.

Samsung F-Series vs. Q-Series, (min., typ., max.)3.png
 

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Jay7t5

Jay7t5

Well-Known Member
I know this is a bit late,but I see the Samsung lm301b Q-board kits on Ali express and alibaba are they cheap copies or the sane thing? I am looking for a quantum board for a 1mx1m so I was thinking 2 120w with 2 50w cobs citizens that I already have,dies this sound ok guys,or should I goto timber,diyleduk,chilled,grownau5,aby advice would be appreciated ✌
 
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