Diy cree cxb3590 3500k help please

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Elijah Ferman

Member
Randomblame said:
To recommend a new user to drive a CXB3590 with 150w is not only wrong but also unfair. Running COBs above the maximum shortens their lifetime and makes them inefficient. You testify to have a buddhist attitude, but now you show how hostile you really are. You could have recommended keeping all the COB's and running them at half current ... but no, you recommend the bad thing and shovel bad things to your own karma.
Namaste!

BTW, I had a Vero29gen6, which I could run without problems with 5,2A. But just because it's not burned out, I recommend that to no one else.

@Elijah Ferman
If you have already bought everything, use the built-in dimmers or operate the COB's in a parallel circuit to lower the current. CXB3590 perform best when running at 36-75w (50-55% effiency), at 150w we talk about 35% effiency, not better than HPS.
Do youself a favor and and listen to what cobkits has recommended.
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Thanks man i didn't buy anything yet I'll just get with cobkits. this is all new to me i have a couple kind xl 1000 no cobs yet tho. i just hate to spend so much on a light like the kind if i can build one cheaper jus seems a lil confusing right now lol
 
Randomblame

Randomblame

Well-Known Member
Elijah Ferman said:
Thanks man i didn't buy anything yet I'll just get with cobkits. this is all new to me i have a couple kind xl 1000 no cobs yet tho. i just hate to spend so much on a light like the kind if i can build one cheaper jus seems a lil confusing right now lol
Click to expand...

Have you heard of Samsung's F-Series strips? They blow your kind xl's out of the water!
These strips are truely a game changer and blow away almost every COB based lights with ease. COB's would have to run with 25-35w to achieve the same efficiency.
They use the same diodes as Quantumboards but cost ⅓ less.
For a 5x5' area I would recommend to use six 4ft. double row or 12 single row F-strips and 2 HLG-320H-48A.
2x2x2" alu U-channels are enough for cooling, no heatsinks needed, so you can save a bit more, and believe me, these strips are really great! Better light distribution and better efficiency hand in hand with a comparably lower price.

These are the double row strips:
https://www.digikey.com/products/en?keywords=SI-B8VZ91B20WW

And these are all available F-Series strips(from 2ft. single row to 4ft double row):
https://www.digikey.de/products/de/optoelectronics/led-lighting-cobs-engines-modules/111?k=&pkeyword=&v=1510&s=56498&FV=ffe0006f&mnonly=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=25

MeanWell HLG-320H-48A are widely available. A quick google search is enough.

And before you buy any aluminum U-channels from Walmart or the next metal store you should call the next scrapyard. Often you get what you need at a kilo-price base.
 
Randomblame

Randomblame

Well-Known Member
Elijah Ferman4032172 said:
This would kill a 5x5 scrog? How many watts would it take from my wall?
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Assuming a HLG-240H-54A has 4,6Amps and let's say a CXM22 needs ~50v at 1,15A, then each driver could handle 4 COB's in parallel, 50v/4,6Amps, around 230w, -250w at the wall. So with 4 drivers and 16 COB's 920-1000w!

But this is probably too much goodness and you can get away with 4 HLG-185H-54B and 800w. But I still recommend F-strips over COB's because of numerous advantages.
 
Randomblame

Randomblame

Well-Known Member
Nope!
You got the bare LED strips and have to mount or glue them to a piece of U-channel, very simple.
There is a part list in one of the recommended threads.
In general you need the strips, double sided thermal tape or some screws, alu U-channel, some single core awg20 wire and a 48v CV/CC driver like MeanWell's HLG or ELG driver series.
No need for expensive heatsinks, no need for special holders or reflectors and no need to use thermal grease.
Simply screw them to the metal, insert wires into the connectors and push the driver into the wall plug(ahh, I forgot, no need to solder anything, LOL).
 
E

Elijah Ferman

Member
Randomblame said:
Nope!
You got the bare LED strips and have to mount or glue them to a piece of U-channel, very simple.
There is a part list in one of the recommended threads.
In general you need the strips, double sided thermal tape or some screws, alu U-channel, some single core awg20 wire and a 48v CV/CC driver like MeanWell's HLG or ELG driver series.
No need for expensive heatsinks, no need for special holders or reflectors and no need to use thermal grease.
Simply screw them to the metal, insert wires into the connectors and push the driver into the wall plug(ahh, I forgot, no need to solder anything, LOL).
Click to expand...
No shit doesn't sound too bad lol i have a friend who's gonna be helping me he knows his shit not me lol i appreciate all your help! Im glad you told me about these I'll be doing lots of googling after work!
 
CobKits

CobKits

Well-Known Member
1000W max at the wall but youd prob dim it to 800

you could downsize the drivers to hlg-185 48A or 54B to save some loot and still have 800W. would only shave about $80 though,
 
E

Elijah Ferman

Member
Randomblame said:
Nope!
You got the bare LED strips and have to mount or glue them to a piece of U-channel, very simple.
There is a part list in one of the recommended threads.
In general you need the strips, double sided thermal tape or some screws, alu U-channel, some single core awg20 wire and a 48v CV/CC driver like MeanWell's HLG or ELG driver series.
No need for expensive heatsinks, no need for special holders or reflectors and no need to use thermal grease.
Simply screw them to the metal, insert wires into the connectors and push the driver into the wall plug(ahh, I forgot, no need to solder anything, LOL).
Click to expand...
https://app.alibaba.com/dynamiclink?touchId=60729397539&type=product&schema=enalibaba://detail?id=60729397539&ck=share_detail&ck=share_detail&shareScene=buyer i found these samsung 561c s6 they build em and sendem to you i read some about them on here but i don't really understand the tech lol and if I'm gonna build i need to do a lil more research first so do you think 3 of these would be good on my 5x5? There's 800 diodes on them the lady i spoke with said they'll run. About 360 watts each
 
Randomblame

Randomblame

Well-Known Member
Elijah Ferman said:
https://app.alibaba.com/dynamiclink?touchId=60729397539&type=product&schema=enalibaba://detail?id=60729397539&ck=share_detail&ck=share_detail&shareScene=buyer i found these samsung 561c s6 they build em and sendem to you i read some about them on here but i don't really understand the tech lol and if I'm gonna build i need to do a lil more research first so do you think 3 of these would be good on my 5x5? There's 800 diodes on them the lady i spoke with said they'll run. About 360 watts each
Click to expand...
They look the same as other boards but bigger. 2 or 3 should be enough but you can not be sure if they really use LM561c in S6. Even if it's really LM561c, it's probably just S4 or S5.
But if you do not care about the used diodes, 3 are more than enough!
 
coreywebster

coreywebster

Well-Known Member
Elijah Ferman said:
https://app.alibaba.com/dynamiclink?touchId=60729397539&type=product&schema=enalibaba://detail?id=60729397539&ck=share_detail&ck=share_detail&shareScene=buyer i found these samsung 561c s6 they build em and sendem to you i read some about them on here but i don't really understand the tech lol and if I'm gonna build i need to do a lil more research first so do you think 3 of these would be good on my 5x5? There's 800 diodes on them the lady i spoke with said they'll run. About 360 watts each
Click to expand...
What price have they offered per board?
 
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Elijah Ferman

Member
Randomblame said:
They look the same as other boards but bigger. 2 or 3 should be enough but you can not be sure if they really use LM561c in S6. Even if it's really LM561c, it's probably just S4 or S5.
But if you do not care about the used diodes, 3 are more than enough!
Click to expand...
Yea that's the scary part why can't people just be honest about shit especially when you spend so much money. I did see another thread were the person bought from the same co and drilled em with Qs and said everything sounded legit I'm gonna keep researching Before i drop the money
 
E

Elijah Ferman

Member
Randomblame said:
They look the same as other boards but bigger. 2 or 3 should be enough but you can not be sure if they really use LM561c in S6. Even if it's really LM561c, it's probably just S4 or S5.
But if you do not care about the used diodes, 3 are more than enough!
Click to expand...

If they are legit would 3 be over kill? Or just get me that much more weight?
 
Randomblame

Randomblame

Well-Known Member
Elijah Ferman said:
If they are legit would 3 be over kill? Or just get me that much more weight?
Click to expand...
1000w is enough for a 6x6‘ area, so yes, it's a bit too much without additional CO²! (Over 1000-1500μmol/s additional CO² is recommended, so that the plants can use so much light).
But Meanwell drivers are dimmable, A models via internal poti(50-108%), B models via external 100-110k poti(6-108%).
Watch well and avoid bleaching, then you will find the sweet spot for each specific strain.(sativas are usually more light hungry)

ppfd-charts.png
 
E

Elijah Ferman

Member
Randomblame said:
1000w is enough for a 6x6‘ area, so yes, it's a bit too much without additional CO²! (Over 1000-1500μmol/s additional CO² is recommended, so that the plants can use so much light).
But Meanwell drivers are dimmable, A models via internal poti(50-108%), B models via external 100-110k poti(6-108%).
Watch well and avoid bleaching, then you will find the sweet spot for each specific strain.(sativas are usually more light hungry)

View attachment 4079948
Click to expand...
Ok cool thanks for the help man i really appreciate it!
 
E

Elijah Ferman

Member
Krytend said:
If you're running Leds at that high of amps you might as well just buy a CMH.
Click to expand...
I don't kno what the amps will be running at I'm justrying to get the best lights to get me the most weight over a 5x5 scrog besides hps i already have a few cmh in other rooms jus seem to stretch allot more compared to my leds
 
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