Digikey will be selling the new Samsung Horticulture Linear LED strips.

Airwalker16

Well-Known Member
Im getting stuff from cutter this time around. Im getting free shipping and they promised me to underwrite the invoice a bit. I think they can even label it as comercial samples if you work them a bit, but that might mean you have to prove yourself in the eyes of customs.

They have some very interesting products, i had them make a 5050 strip with white, wide blue (400, 450, 470) and phosphor covered 660nm red. 48+48+12 diodes for just over 50 euros, and the white is 5w diodes so should be exceptionally efficient running around 1w a piece.
These cree chips come in 90 cri aswell but i thought it unnecessary with the phosphor red, they have plenty of far red and also covers 680-700 fairly well.
that is so expensive for a strip with 108 leds.
why is that?
 

Rocket Soul

Well-Known Member
that is so expensive for a strip with 108 leds.
why is that?
Its not midpower diodes, these are 5w crees instead of 0.6w nichias. Guestimating: You should be able to squeeze out about +50w of white light per channel at efficiency of lm301b or more. And on the PC reds you get wide red channel, wide blue channel with UV and about 50-100w of white light depending on how much of a efficiency-geek you are.
 

Rocket Soul

Well-Known Member
Ive actually not tried them. I was going for a different variant that Rita showed me with multichannel but in the end she wouldnt sell them as they were someones design. We will try red supplemented FoTop boards with lm301b and some other takes on red supplement soon.

I dont like the epistar reds too much, and i have a hard time believing some of the claims of cree and similar on some other boards. My guestimation on epi reds is that they are almost a third less photons than standard samsung.
 

Airwalker16

Well-Known Member
Epistar make the best reds in the world. The issue you guys have is when you buy them from China they use the shit ones. It is hard to buy good reds in China.
On those solstrips could you have like 4 reds put on them or are they already all made?
 

TEKNIK

Well-Known Member
They make them to order most of the time, they could use 0Ohm resistors to jump across the pads I guess if you only wanted 4 reds, they are cheap anyway, better to have the 12 reds or a combination of 660 and 730 drive the current lower to gain efficiency
 

TEKNIK

Well-Known Member
The solstrips are a completely different thing to the $10 cree strips, solstrips are designed for maximum control of spectrum
 

PSUAGRO.

Well-Known Member
Epistar made cree photo 660nm chips for a bit, definitely don't suck.

Love how Sammie is backstabbing their supposed "partners " by releasing their own horti platforms........just business as usual ; )
 
Last edited:

TEKNIK

Well-Known Member
I would never deal with Samsung led division for that reason, Nichia all the way for me when it comes to high end. If I was one of those "supposed partners" I would be absolutely furious and instantly switch to nichia, but nichia is expensive on Chinese made boards
 

PSUAGRO.

Well-Known Member
I would never deal with Samsung led division for that reason, Nichia all the way for me when it comes to high end. If I was one of those "supposed partners" I would be absolutely furious and instantly switch to nichia, but nichia is expensive on Chinese made boards
Until the Japanese find out your products are intended for growing the "devils weed".........twisted business plan.

I remember on here when citizen would refuse sales/distribution to the US cannabis industry.
 

TEKNIK

Well-Known Member
Citizen are idiots, I hope everyone starts using luminus devices products as they are better anyway. Nichia make leds for canabis they don't have an issue with it.
 

Randomblame

Well-Known Member
Yeah, you can use their own white 50cm Sammy strips with 98 LM301b's. These strips are better like comparable Samsung H-influx strips.
A 2ft single row L06 H-influx strip has 88 diodes, 2,2A max current, <50w maximal output and costs ~28€ for EU peeps. Such an LED-tech strip has 98 diodes, 2,8A max. current and <60w max and they cost only 16€.(made in house by LED-tech.de)
And not to forget they use a better more efficient binning.
At 350mA you get +210lm/w out of a 3500°k strip and at 2,8A you can get 9800lm out of one fecken 50cm strip. At 2A they run with ~42w and 55°C which means minimal effort for heat sinks.
They are perfect to create a white base light and you can use every 20 or 24v driver to run them in parallel; for instance with an HLG-185H-20A. Depending on voltage and max. current of the Osram strips its also possible to create a series-parallel circuit to power both kind of strips with only one driver. Lets say the Osram strips have 24v you could run a white and a colored one in series and use several of these 2 strip strings in parallel with an HLG-xxxh-42 or 48. But I would rather have them on two drivers to control/dimm them separately.
The only thing hurts a bit is they are only available in 3500 and 6500°k.
But on the other hand, 3500°k is perfect as base light and you can also order customized Osram strips with different diodes. Oslon Square deep-red combined with Oslon SSL red and far-red for instance...? No problemo! There is a chat window on their website or you contact them via email.
 

grisbi

Well-Known Member
Yeah, you can use their own white 50cm Sammy strips with 98 LM301b's. These strips are better like comparable Samsung H-influx strips.
A 2ft single row L06 H-influx strip has 88 diodes, 2,2A max current, <50w maximal output and costs ~28€ for EU peeps. Such an LED-tech strip has 98 diodes, 2,8A max. current and <60w max and they cost only 16€.(made in house by LED-tech.de)
And not to forget they use a better more efficient binning.
At 350mA you get +210lm/w out of a 3500°k strip and at 2,8A you can get 9800lm out of one fecken 50cm strip. At 2A they run with ~42w and 55°C which means minimal effort for heat sinks.
They are perfect to create a white base light and you can use every 20 or 24v driver to run them in parallel; for instance with an HLG-185H-20A. Depending on voltage and max. current of the Osram strips its also possible to create a series-parallel circuit to power both kind of strips with only one driver. Lets say the Osram strips have 24v you could run a white and a colored one in series and use several of these 2 strip strings in parallel with an HLG-xxxh-42 or 48. But I would rather have them on two drivers to control/dimm them separately.
The only thing hurts a bit is they are only available in 3500 and 6500°k.
But on the other hand, 3500°k is perfect as base light and you can also order customized Osram strips with different diodes. Oslon Square deep-red combined with Oslon SSL red and far-red for instance...? No problemo! There is a chat window on their website or you contact them via email.
i already order them theire t slot profil and some of those baby "slider" so cleaver the way they did it ;)

and also that
https://www.led-tech.de/en/SYSTEM250-SSL-120-Far-Red-KIT

very cool to see europeean compagny's moving a little bit!

cant way to show my structure!
 
Top