DIY 4x12 3500K/5000k lm561c two channel board

[VegasWinner]

i wanted to share that there are a number of drivers you can use with these two two channel boards.

For a pair of boards, I plan on using A Deep red Channel, Royal Blue Channel, a UVA Channel, and a Far red channel each separate. I can use an MW lpc-60-1050 non-dimmable driver for each channel and connect the UVA channel with the Royal Blue channel for qa total Forward voltage of 44.6v which fits on an lpc-60-1050 driver. I can use an lpc-60-1050 for my blue Channel and my red channel, as well.

For two Red/Blue boards and one far red uva board I can use two HLG-120H-C1050B driver to drive two Red Channels and two Blue channels., and an lpc-60-1050 for the far red channel. I can connect the uva channel with either blue channel or I can add a second uva far red board, as well ans use another HLG-120H-C1050B driver for far red too.

The lpc drivers are non-dimmable and the 120H is dimmable. choices.

 

[VegasWinner]

A heatsink 2.425" x 12" heatsink with a C/W/3 of 5.9 is fine for a single board as the c/w for a single is 5.9 total for a board.
http://www.heatsinkusa.com/2-425-wide-extruded-aluminum-heatsink/

 

[VegasWinner]

How big are these blurple strips/boards? More than 2ft.?
I did not find any info about the dimensions on your website, but they sounds interesting.

I'm looking for 2ft. strips using SunPlus20 (12,5:87,5%, pinkish) or their freshmeat/1900°k SMD3010 diodes but did not find any and since I need only a few of them It is not worth having them made. But found a "fresh-meat tube" using 1850°k smd5630 diodes made by Sanan, 60pcs per 2 ft. tube.(12s5p) I'll try to get a few samples because the tube sellers like to sell only by bigger margins. But I know nothing about Sanan and I would 10 times rather get SunPlus20.

SunPlus 20 is new and most suppliers do not have them. The only thing I have found is lumileds selling rebel led strips, not the horticulture line tho. That is hbe reason I decided to makle some SunPlus 20 boards. I figured if I wanted them others would also.

 

[VegasWinner]

Why not try T5 arcadia 12%......39 watt tube.....run entire on period.

Tube is too large, takes up to much space for my needs, and too hot with driver. Thee are plenty of uva 385nm didoes available on ebay, as well. Different ones have more or less power. Thee are various uva companies out there.

 

[Stephenj37826]

The sunplus line is not new honestly. We had samples q1 16. Plenty of other high power color LEDs that outperform the sunplus line up. Crees are nice as well as Osram. You could look into prolite opto if you want something similar in preformance and more cost effective.

 

[VegasWinner]

The sunplus line is not new honestly. We had samples q1 16. Plenty of other high power color LEDs that outperform the sunplus line up. Crees are nice as well as Osram. You could look into prolite opto if you want something similar in preformance and more cost effective.

I am aware the Sunplus 20, they also have the Sunplus 35 and also their COB's as well. I like the SunPlus 20 for their performance and price break. Stevesleds sells them at $2/ea on sale normal price $8/ea on starts.

I did look into Osram and Cree as well. I chose the Luxeon line because they had what I was looking for and the price works for me and my supplier could get them at a fair price on something less than a reel.. I don't have direct access to a reflow oven and I am not sure I want to reflow diodes on pcb's by hand.

I can get the pcb's made quite on the cheap. I do my own design's and I use at least two fabricators for pcb's online, itead and easyeda, as well as my foreign fabricators work for me. However, getting smaller amounts of diodes on something less than a reel is difficult at best and costly. I can't afford to buy a reel of Deep Red, Far Red, Royal Blue and UVA, diodes. With my suppliers I can get smaller amounts made and Luxeon is available cost affordably to them and me.

I have been looking for a red/blue pcb and a far red pcb, so I designed my own after I got tired of looking. I wanted something I could use a conventional driver with not a battery for power and sized for at least a 2x2 area.

I like the idea of being able to add red/blue/uva and far red in an easy fashion.

 

[Randomblame]

I am sure there is an area factor I have not considered.

Maybe, but I've not seen an input field for different areas!
But there is also an error in the calculator, because they calculate at the top with 0,14μmol/j for far-red SP20 but below they calculate far-red with ~1,4μmol/j.
This is not your fault and only affects the SP20 far-red's as far as I can see.

 

[Prawn Connery]

Hmm!
Why not adding 4000°k for more light blue/cyan instead of 5000°k?
It has about 6% more blue in the 460-475nm range?
And BTW,
all white LED's have their blue peak at ~450nm, which is called royal blue, but 475nm(light blue) is always the lowest part between the blue and green part of the spectrum. Seems you have twisted something...

Apart from this I'm curious to see gen.2 in action. These multi LED boards are really underestimated for it's capabillities.


View attachment 4038464 View attachment 4038465

Hey mate, you might find that the 5000K diode in fact puts out more total 475nm light than the 4000K, even though it doesn't look like it at first glance - so Vegas is on the right track.

The reason is because these graphs represent "relative intensity", which is not the same as "total intensity" - otherwise each peak on the graph would add up to 100%, instead of being relative to 100%.

On the 4000K graph you will see the 450nm spike is the same as the 550nm spike at 80% relativity. That doesn't mean 160% of the diode's light is in the 450nm and 550nm wavelengths - it simply means the diode emits the same amount of each wavelength, and that their individual totals are 80% of the peak wavelength (590nm in this case).

In layman's terms, the graph depicts "area under the curve", which means the total light output in all wavelengths is the sum of all the area under the curved line - a sum you can roughly calculate by adding up the total number of squares (and parts thereof) to give you a baseline figure.

Let's say, for example, the 4000K graph has 60 squares under the curve and the 5000K graph has 40.

Let's also assume both 4000K and 5000K diodes put out the same amount of light (or roughly the same). I'll use an arbitrary figure of 30 lumens (lumens is not the correct unit of measure in this case - see below - I'm just using it to make things simple).

What that means is that each 4000K square represents 0.5 lumens (30 over 60) in that spectra, whilst each 5000K square represents 0.75 lumens (30 over 40).

That means each peak on the 5000K curve is worth 50% more light in that wavelength than the 4000K curve.

That 20% intensity figure for the 5000K graph now represents 30% on the 4000K graph - which, as you can see, is about 5% more 475nm light from the 5000K diode compared to the 4000K diode.

This all makes sense when you think about it.

Each diode junction emits about the same amount of blue light; the phosphor converts that blue light into other spectra. The less phosphor (5000K), the more pure blue light is emitted. The more phosphor (4000K), the more that blue light is converted to other spectra.

I will finish by saying that "lumens" are weighted according to wavelength sensitivity of the human eye, giving more weight to green than red or blue. Which means that even though my example is not a real-world example, the principle is still correct when reading the graphs.

 

[Randomblame]

Hey mate, you might find that the 5000K diode in fact puts out more total 475nm light than the 4000K, even though it doesn't look like it at first glance - so Vegas is on the right track.

The reason is because these graphs represent "relative intensity", which is not the same as "total intensity" - otherwise each peak on the graph would add up to 100%, instead of being relative to 100%.

On the 4000K graph you will see the 450nm spike is the same as the 550nm spike at 80% relativity. That doesn't mean 160% of the diode's light is in the 450nm and 550nm wavelengths - it simply means the diode emits the same amount of each wavelength, and that their individual totals are 80% of the peak wavelength (590nm in this case).

In layman's terms, the graph depicts "area under the curve", which means the total light output in all wavelengths is the sum of all the area under the curved line - a sum you can roughly calculate by adding up the total number of squares (and parts thereof) to give you a baseline figure.

Let's say, for example, the 4000K graph has 60 squares under the curve and the 5000K graph has 40.

Let's also assume both 4000K and 5000K diodes put out the same amount of light (or roughly the same). I'll use an arbitrary figure of 30 lumens (lumens is not the correct unit of measure in this case - see below - I'm just using it to make things simple).

What that means is that each 4000K square represents 0.5 lumens (30 over 60) in that spectra, whilst each 5000K square represents 0.75 lumens (30 over 40).

That means each peak on the 5000K curve is worth 50% more light in that wavelength than the 4000K curve.

That 20% intensity figure for the 5000K graph now represents 30% on the 4000K graph - which, as you can see, is about 5% more 475nm light from the 5000K diode compared to the 4000K diode.

This all makes sense when you think about it.

Each diode junction emits about the same amount of blue light; the phosphor converts that blue light into other spectra. The less phosphor (5000K), the more pure blue light is emitted. The more phosphor (4000K), the more that blue light is converted to other spectra.

I will finish by saying that "lumens" are weighted according to wavelength sensitivity of the human eye, giving more weight to green than red or blue. Which means that even though my example is not a real-world example, the principle is still correct when reading the graphs.

Oh man, that's what @stardustsailor told me 3 or 4 years ago, s ***, I forget!
Thanks for refreshing everything. He called it "photon counting", which was nothing else but the example with your squres.
Actually, completely logical, after all, the "hump" in the red area is much higher on the 4k chip, which is why he has more light in this area. While 4k has a B:R ratio of 95: 100%(more red as blue), 5k has a ratio of 100: 60%(much more blue than red). I must have slept when I wrote that...
Ashes on my head...!

Again very well explained and in clean school english that everyone can understand.
Thank you, sir!

 

[Prawn Connery]

"Ashes on my head "- LOL, I haven't heard that expression for a long time . . .

Personally, I think the 5700K and 6500K LM561Cs are the pick for blue supplement, just looking at the graphs. I read somewhere that the Photon Fantom noticed a surprising spike in PFD when he added 6500K diodes to his Fusion boards (he actually said he wasn't sure if it was the addition of the 3500K or 6500K, but you would think with all that extra short-wave blue spectrum energy, it would be the 6500Ks.)

BTW, I've learned a lot from reading your posts, so I think the knowledge flow is still firmly in your favour! That goes for many others in the LED forum. I'm just trying to give back where I can.

 

[Randomblame]

"Ashes on my head "- LOL, I haven't heard that expression for a long time . . .

Personally, I think the 5700K and 6500K LM561Cs are the pick for blue supplement, just looking at the graphs. I read somewhere that the Photon Fantom noticed a surprising spike in PFD when he added 6500K diodes to his Fusion boards (he actually said he wasn't sure if it was the addition of the 3500K or 6500K, but you would think with all that extra short-wave blue spectrum energy, it would be the 6500Ks.)

BTW, I've learned a lot from reading your posts, so I think the knowledge flow is still firmly in your favour! That goes for many others in the LED forum. I'm just trying to give back where I can.

Looks we have the same intention!
The internet is indispensable in these things, nowhere else can you find out all about LEDs in such a short time, and here on RUI, despite all the prophecies of doom, is still one of the best places to do it.

 

[Prawn Connery]

Definitely. When I first started looking at LED fixtures six months ago, I knew nothing. Not. A. Thing. After a few months on these boards, I've learned enough to start sourcing and building my own fixtures.

I also like how RIU isn't overly moderated, so people can call bullshit when they see it and no-one gets their panties in a knot or sees their posts disappear. I must have the record for the fastest permanent ban at ICMag - I hadn't even made one post, but my avatar (and reputation) obviously preceded me. As soon as I registered, BAM! Gypsy and I go back a long way on pot boards . . . we're what you call "good frenemies".

 

[Nutria]

@VegasWinner would you use a 3mm thick alu sheet as passive heatsink for your GG board (or something similar)?
How would you attach the pcb to the heatsink?

 

[Randomblame]

Definitely. When I first started looking at LED fixtures six months ago, I knew nothing. Not. A. Thing. After a few months on these boards, I've learned enough to start sourcing and building my own fixtures.

I also like how RIU isn't overly moderated, so people can call bullshit when they see it and no-one gets their panties in a knot or sees their posts disappear. I must have the record for the fastest permanent ban at ICMag - I hadn't even made one post, but my avatar (and reputation) obviously preceded me. As soon as I registered, BAM! Gypsy and I go back a long way on pot boards . . . we're what you call "good frenemies".

LMFAO!
Banned for an avatar..? What the f****' hell did it show ..? .. child pornography or maybe nazi slogans..?
I knew that they are crazy with their stupid regulations, but the hell that it is so bad ... Tse,tse,tse..!
Be glad that you did not waste your time with ignoramuses ..!

Lol, "frenemies", that's a term I like very much.
Cheers mate!

 

[Growcob5]

Oh dear, I wonder what has happened here........?
View attachment 4016077

I have the same problem on one of the CEO be chips that I got a citizenship I purchased had a whole two rows out in the center I've purchased a few chips that had Rose out on them but never a SMD board usually if you touch each individual light with your finger you'll find out which one has a broken contact because usually when you touch each one usually by touching the individual light down the road that's out it will turn on when the light and you'll find out which one is the bad led by touching it with your finger or

Probing it with tweezers when the contacts but you really can't with them cuz they're so small chips and I think they're contacts or on the back positive and negative but it looks like your contact and making the connection or the circuit broke or one of the chips has failed and it cannot pass through

 

[VegasWinner]

@VegasWinner would you use a 3mm thick alu sheet as passive heatsink for your GG board (or something similar)?
How would you attach the pcb to the heatsink?

For the GrowGreen boards I use 5.886" x 18" heatsinks from heatsinksusa. I have eight holes in my boards for drill tapping 3mm screws. I use self tapping screws faster. I use thermal grease to ensure heat transfer. I have found at 100w heat sink not even warm. 200w need fan for active cooling.
thanks for asking

 

[VegasWinner]

Definitely. When I first started looking at LED fixtures six months ago, I knew nothing. Not. A. Thing. After a few months on these boards, I've learned enough to start sourcing and building my own fixtures.

I also like how RIU isn't overly moderated, so people can call bullshit when they see it and no-one gets their panties in a knot or sees their posts disappear. I must have the record for the fastest permanent ban at ICMag - I hadn't even made one post, but my avatar (and reputation) obviously preceded me. As soon as I registered, BAM! Gypsy and I go back a long way on pot boards . . . we're what you call "good frenemies".

I am old friends with Gypsy have known hm for 20 years now I guess, along with BOG, Texas Kid, memories.

 

[VegasWinner]

Looks we have the same intention!
The internet is indispensable in these things, nowhere else can you find out all about LEDs in such a short time, and here on RUI, despite all the prophecies of doom, is still one of the best places to do it.

I get subscription to LEDs magazine which is how I follow various manufacturers and diodes. I have been following luxeon for some time now. it seems others are patterning after their diodes regarding colors. Luxeon only provides Deep Red far Red, Lime, and Royal Blue as Horticulture only diodes, and they offer various versions of white diodes with cri corrections spectrums2700k-6500k.

Their lumileds calculator seems to have a problem, but I expect the small boards to deliver big, in enhancing production with white light 2700k-6500k fixtures.

 

[PSUAGRO.]

LMFAO!
Banned for an avatar..? What the f****' hell did it show ..? .. child pornography or maybe nazi slogans..?
I knew that they are crazy with their stupid regulations, but the hell that it is so bad ... Tse,tse,tse..!
Be glad that you did not waste your time with ignoramuses ..!

Lol, "frenemies", that's a term I like very much.
Cheers mate!

I got banned from icrag due to gypsy videotaping his firing/belittling an employee for "entertainment " purposes.........actually the hammer came down on a lot of guys from that , we all came here

I am old friends with Gypsy have known hm for 20 years now I guess, along with BOG, Texas Kid, memories.

what's he been up too since prison?

 

[VegasWinner]

I got banned from icrag due to gypsy videotaping his firing/belittling an employee for "entertainment " purposes.........actually the hammer came down on a lot of guys from that , we all came here



what's he been up too since prison?

I saw the video. disgusting behavior.
back in UK now. they let him go no charges filed. Myself and a few others started the Chanters Growing Group thread at icmag many good friends came from that I still stay in contact with them.