robincnn
Well-Known Member
Citizen CLU048 1812 3500K 90 CRI
DIY Passive cooling with PIN Heatsinks SST120 and SST140
- Thread starter robincnn
- Start date
robincnn
Well-Known Member
This 1 hour build took me almost 2 hours.
There is nothing Ideal about those Ideal holders.
Right side you can see Ideal holder for 3590 COB and the Reflector adapter. You can see the + on the holder.
On the left Top. The ideal holder for CLU048 has the +... ok
Left bottom you can see the reflector adapter covers the + on holder and has its own + marking. When i mounted the reflector adapter i did not notice this and + landed on - side.
Had to remove everything and re wire the whole thing all over again.
There is nothing Ideal about those Ideal holders.
Right side you can see Ideal holder for 3590 COB and the Reflector adapter. You can see the + on the holder.
On the left Top. The ideal holder for CLU048 has the +... ok
Left bottom you can see the reflector adapter covers the + on holder and has its own + marking. When i mounted the reflector adapter i did not notice this and + landed on - side.
Had to remove everything and re wire the whole thing all over again.
The Dawg
Well-Known Member
Nice Carpet
Airwalker16
Well-Known Member
That's a 3070 holder and adapter right?This 1 hour build took me almost 2 hours.
There is nothing Ideal about those Ideal holders.
Right side you can see Ideal holder for 3590 COB and the Reflector adapter. You can see the + on the holder.
On the left Top. The ideal holder for CLU048 has the +... ok
Left bottom you can see the reflector adapter covers the + on holder and has its own + marking. When i mounted the reflector adapter i did not notice this and + landed on - side.
Had to remove everything and re wire the whole thing all over again.
View attachment 3763132
robincnn
Well-Known Member
They are similar
Citizen CLU-048 with Ideal Holder 50-2204CT, reflector adapter 50-2100AN
Cree CXB 3070 with Ideal Holder 50-2234C, reflector adapter 50-2100AN
Abiqua
Well-Known Member
High cri are photon filters, this has been known for a while....you might have higher output in certain nm's over 626, but your overall photon output is decreased and hence efficient as a direct result....
The whole CRI thing makes no sense, we throw away and deem useless other anthropogenic measurements [lumens], CRI is probably even more useless imho...but i digress...should be fun nonetheless.....I like to fuck around with spectrum too, but so far after hundreds of combo's,still haven't seen anything "concrete"
Airwalker16
Well-Known Member
Oh wow, so ideal makes an entirely different chip lok holder for the citizen line huh? I could tell the reflector adapter was the same though.
JorgeGonzales
Well-Known Member
CRI pushes the main peak up to about 630nm, adds a bit more above 700nm, and reduces the relative amount of green by quite a bit. Basically a bit closer to solar levels of relative blue, green, and red, so not entirely just for people. All decent things for plants, theoretically, not sure how much weed cares.High cri are photon filters, this has been known for a while....you might have higher output in certain nm's over 626, but your overall photon output is decreased and hence efficient as a direct result....
The whole CRI thing makes no sense, we throw away and deem useless other anthropogenic measurements [lumens], CRI is probably even more useless imho...but i digress...should be fun nonetheless.....I like to fuck around with spectrum too, but so far after hundreds of combo's,still haven't seen anything "concrete"
I am also not sure where 10% less efficient comes from, since I haven't looked at the new software, but that doesn't sound right. 3500K in 80 and 90 CRI should be about equal in number of photons emitted, believe it or not. You can ask master @guod how that works, but presumably energy is lost, but the number of photons remains the same.
Since plants really care about photons, not energy, it seems to work out OK. @nevergoodenuf did a head to head, 90CRI was basically equal for yield and lab r sults, with the only real difference being less popcorn.
I think @robincnn is the only one so far to test 80 vs 90 CRI under a PAR meter, and from memory it was a close contest which ended up being within 5% after adjusting for unmeasured photons above 700nm. So within binning margins, basically. But software, even truncating 400-700nm should have them even closer.
Anyway, food for thought. I don't think green light is evil or anything, but it's unnatural to have a higher amoung relative to red, and if we can push the red up a bit into the sweet spot without losing photons, why not?
coreywebster
Well-Known Member
Thanks Abiqua, I guess I missed that lesson, its been a steep learning curve for me. I have been trying to read so much and take so much in. I only just had my head around the cxbs and then the CLU058s were in the lime light. There are many occasions I have felt very stupid and I'm sure there will be more moments to come. Appreciate your comments.High cri are photon filters, this has been known for a while....you might have higher output in certain nm's over 626, but your overall photon output is decreased and hence efficient as a direct result....
The whole CRI thing makes no sense, we throw away and deem useless other anthropogenic measurements [lumens], CRI is probably even more useless imho...but i digress...should be fun nonetheless.....I like to fuck around with spectrum too, but so far after hundreds of combo's,still haven't seen anything "concrete"
@JorgeGonzales I think there are some errors or I am using the new calc poorly, I spoke to Malocan last night to ask his thoughts and he pointed me to some of your charts. I had somehow not come across them. So they look a lot closer than the calc suggested. Which helped me sleep last night. Thanks for putting all that information together Jorge. Your a top man.
@robincnn very sorry for hijacking your thread, I had a panic moment last night and a big feeling of dread washed over me. The calculator I was referring to is the new Citi calc on here in the thread DIY cob calculator. Anyway after reading the comments above and speaking to Malocan I feel more reassured.
My order from you is due today so I'm looking forward to receiving. Thanks again for the top customer service. I appreciate you making the purchase less painful from a European perspective.
Thanks again folks
C.W
pop22
Well-Known Member
robincnn
Well-Known Member
Airwalker16
Well-Known Member
Hlg-320H-C2100b runs 4 cxb's at 75watts ec. And it's $80-$100. Save yourself the clutter of 4 drivers..
Airwalker16
Well-Known Member
You'd think using a graphite pad square that covers the ENTIRE back would be better. Because once you screw it down, it'll clear that hole and give you thermal interface on all points of contact. Even those tiny little edges around the hole. Just need a square that's the citi cobs full length mm X full length mm.
pop22
Well-Known Member
You'd be right if I was using Cree cobs. The 1825 is a 50v (max 54? ) so three is the limit. Anyway I go, its not as cheap as driving the Crees. Upside, redundancy and cost? I haven't seen a HLG-320H for less than $95 so no big savings.
Abiqua
Well-Known Member
All I am arguing is that CRI is derived for human use, technically. The caveat that the increased red spectrums of the high CRI, probably are most hoped to enhance more of the Emerson Effect, but truly that is a merely a by product of selecting for a rendering closer for the human eye and relies on the fact that these wavelengths are in fact acting as described in the Emmerson, but that still isn't known, unfortunately.
Without looking, has there ever been a paper done specifically on Emerson and kanna? Damn, might have to hope over to SciHub and dig......
But I agree with the spectrum anecdotes wholeheartedly, I just wish that we could work towards a true CRI ....Cannabis Rendering Index
pop22
Well-Known Member
Although convenient, I've yet to see a thermal pad actually worth using. And the data I've seen shows that their performance is always less than thermal paste.
I spent years scraping them damn bubblegum pads off of cpus.........
Too bad they don't make a spray on coating, would be just the thing with a template. Most people put the paste on way, too, thick. It is meant to fill voids in the contact surfaces, not make up surfaces that aren't flat by more than a few thousandths. I've spent hundreds of hours working with TIM when my company was building custom, over-clocked gaming computers. We found that a layer thin enough to see thru was the best. We applied it to both the heatsink and the cpu. We then scraped it completely off with a single edge razor blade. Next, we reapplied another coating to the cpu that was very thin, so thin it looked like a smudge. testing showed improvement of .5-1.0 C. We did this with the video cards also, some of those cards were hitting 350 watts!
When building these machines, every degree you can shave off is important!
At that time, Arctic Silver was the TIM of choice.
I spent years scraping them damn bubblegum pads off of cpus.........
Too bad they don't make a spray on coating, would be just the thing with a template. Most people put the paste on way, too, thick. It is meant to fill voids in the contact surfaces, not make up surfaces that aren't flat by more than a few thousandths. I've spent hundreds of hours working with TIM when my company was building custom, over-clocked gaming computers. We found that a layer thin enough to see thru was the best. We applied it to both the heatsink and the cpu. We then scraped it completely off with a single edge razor blade. Next, we reapplied another coating to the cpu that was very thin, so thin it looked like a smudge. testing showed improvement of .5-1.0 C. We did this with the video cards also, some of those cards were hitting 350 watts!
When building these machines, every degree you can shave off is important!
At that time, Arctic Silver was the TIM of choice.