Luminus CXM-32 Gen3 the next big thing??

licoricetree

licoricetree

Well-Known Member
KodaBR said:
Hey guys, im trying to understand about cobs, the new and what the cool guys are using. Im from brasil, and here is the place were everything is extremely expensive only enthusiast use leds...

So im studying everything as best as i can. I came across some 4 -clu48-1212 gen 5, (3 - 4000K and 1 -3500 both 90cri). Im using them on HLG 240h-54A, the only mean well driver i could find over here and im tired of chinese trash. I am using them on my veg tent ( about 7 square feet, before that 250MH and mag ballast)

Im starting to design the lights for my flower room. Its about 15 square feet, and i want to replace 1000 HPS, single ended and mag ballast( As my tropical country is extremely hot, i sent LOTS of energy with ac, in the summer outdoors is usually over 100-110 fahrenheit)

So i made an order with Cobkits, with :
1 clu48-1212 gen6, 3500k 80cri,
5 CXM 22 gen3 3000k 80cri,
some holders and reflectors,
Hlg-185h-48a.

My questions:
-With 5 clu48-1212, what driver will be better, 185h-48a or 240h-54a, any comments how i can max out the veg tent?
-Im thinking in ordering more 10 CXM 22 G3 making 15 of them. It will be a good setup?
-Want to go for a hlg 600 from mean well, what will be the best voltage 48 or 54 (with 15CXM)?
-What you think about instead 10 CXM22G3, 8 Vero29G7 52v?
-Cri, 80 or 90?

Efficiency and heat are very important, i need a lower utility bill.

As you can see, english is not my first or second language, sorry about my mistakes. Iff anyone could point me in the right direction, i want to learn more about it, some friends want to migrate to cob as well.

Tx for the time and im very happy rollitup is back online.
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Soon i will making a build with a 600-48-----you will need to adj the voltage to match the amps. so 54v is to high for the cxm. but the 54 can be adj to a lower voltage. so both will work you will just be putting more watts to the one with the 240-54 then the 185--so you would be driving them harder. 12 on a 600 is like 1.2 something amps at 51ish volts per data sheet.
 
KodaBR

KodaBR

Active Member
licoricetree said:
Soon i will making a build with a 600-48-----you will need to adj the voltage to match the amps. so 54v is to high for the cxm. but the 54 can be adj to a lower voltage. so both will work you will just be putting more watts to the one with the 240-54 then the 185--so you would be driving them harder. 12 on a 600 is like 1.2 something amps at 51ish volts per data sheet.
Click to expand...
Txs for you reply.
I will put my understanding, iff you can correct me i will appreciate.
You think is better go for the 600-48, as the amperage of the driver is higher and it will be using the highest voltage the driver can put out, the driver will be at 630w, and if i use 15 CXM, every cob will be running around 42w, 50v?
Iff i choose for the 54a, as the cobs will be running in 50-52v and the driver will be at 580w it will have some idle power and lose efficiency?

My clu048 i didn't adjust anything, i know they usually run on 32-37v. I just plug everything on the 240-54a, solder the wires etc and it works fine... I thought the driver adjust automatically for the cob voltage, as the amperage is available the voltage goes higher ( i just check the maximum and as i don't have enough amperage to burn the cobs). I use the potentiometer only one time to adjust the first time, so the cobs will not be under power, but i can overpower them?
Im still learning about led drivers and mean wells are a greater challenge as nobody here knows anything about it and the internal potentiometer of the A model is another complication. If you could help me with an explanation, i will be pleased.
 
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licoricetree

licoricetree

Well-Known Member
Per test report the 600 goes to a max voltage of 52.2 so the good thing about these and 12 of them is if thermal run away happen the driver will kick off before it reaches max voltage for chip..
http://www.meanwell.com/productPdf.aspx?i=339&pdf=SExHLTYwMEgtNDgtUlBULlBERg==&a=2

the 320-48 drives them harder but still around 51ish and caps out before chips max voltage also. the 320 at around 51v and 12 hooked up almost puts you at 400w per 320h and like 720 for the 600h. Put 2a fuses on the positive sides and that like double protection then add i forget witch resister to the negative end will protect you 3 ways. IMO almost bullet proof.
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
CobKits said:
@700 mA
1818 50.11V,317 PAR >9.04 PAR/W @ 35.08W
1825 49.29V,320 PAR > 9.28 PAR/W @ 34.50W
cxm22 49.99V, 327 PAR > 9.35 PAR/W @34.99W
cxm32 48.69V, 323 PAR > 9.48 PAR/W @ 34.08W

^^
despite being the cheapest chip of the bunch, CXM22 beating 1825 and 1818, CXM32 costs twice as much as the CXM22 but is only worth about 1% in efficacy and the cxm22 is actually throwing down more par assuming with its slightly higher voltage you can still fit the same number on a CC driver as the CXM32
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Any chance you have the Par/W for the 3500K 80 CRI at 350-400mA? Just curious.... ;)
 
licoricetree

licoricetree

Well-Known Member
Is anybody selling low quantity cxm-32 gen3 yet? Ive contacted some sites directly and they are able to sell them individually for around 35$-47$ a piece. international though :(
 
licoricetree

licoricetree

Well-Known Member
MeGaKiLlErMaN said:
Why pay 2x for a 2.5% increase? Just go with the 22
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ya that is why i didn't buy them the performance increase on the gen1 cxm32 compare to the cxm32 gen 3 is minimal. Rather stick to the gen 1 right now and they are avlible in the usa. i already have 24 cxm-32 gen 3--just trying new stuff--really want those new gen 2 Samsung d series chips
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
licoricetree said:
ya that is why i didn't buy them the performance increase on the gen1 cxm32 compare to the cxm32 gen 3 is minimal. Rather stick to the gen 1 right now and they are avlible in the usa. i already have 24 cxm-32 gen 3--just trying new stuff--really want those new gen 2 Samsung d series chips
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I was referring to the the cxm22 being 2.5% less efficient than the cxm32 but I got cha
 
O

OpenCannaWorms

Member
Hey guys, so I am just now getting into the led world. Ive been researching for a few months. Basically I am short on budget so I am planning to get half the chips (8) at first and run them harder (80-100w) until I can afford the other 8 chips and heatsinks. I'd like to do this with the cxm22. Any recommendations on drivers?
 
K

kaivorth

Active Member
OpenCannaWorms said:
Hey guys, so I am just now getting into the led world. Ive been researching for a few months. Basically I am short on budget so I am planning to get half the chips (8) at first and run them harder (80-100w) until I can afford the other 8 chips and heatsinks. I'd like to do this with the cxm22. Any recommendations on drivers?
Click to expand...
Look in the cobkits thread. I'm using 2 HLG-185-48 to power 6 CXM22s in parallel if that helps.
 
O

OpenCannaWorms

Member
3s and 6s are kind of weird amounts Imo. The goal is eventually to have a chip per square foot of a 4x4. With that said, if I could find a driver that would run 2-4 chips at 80-100w and just add in the extra chips when I get them to drop it down to 40-50w per chip that would be perfect.
 
K

kaivorth

Active Member
OpenCannaWorms said:
3s and 6s are kind of weird amounts Imo. The goal is eventually to have a chip per square foot of a 4x4. With that said, if I could find a driver that would run 2-4 chips at 80-100w and just add in the extra chips when I get them to drop it down to 40-50w per chip that would be perfect.
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That's why it's weird to you. I have a 4x2 grow area. 3 and 6 fit the rectangular room nicely. I didn't want to buy more heatsinks yet.

Hope someone can help you, I'm sure plenty of people have solutions if you do some digging in the cobkits forum
 
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