5 cxb 3590 in 2x4x5 tent?

REALSTYLES

REALSTYLES

Well-Known Member
Major Blazer said:
lol sure you can look at it either way. You wanted to run 5 cobs, so dividing 179 by 5 gives you the max voltage per cob that driver can provide. If the driver were only capable of 150v max than it would put out 30v per cob - in other words not enough to light em up. Alegebrah
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Stop please you don't have your facts right.
 
REALSTYLES

REALSTYLES

Well-Known Member
Major Blazer said:
lol sure you can look at it either way. You wanted to run 5 cobs, so dividing 179 by 5 gives you the max voltage per cob that driver can provide. If the driver were only capable of 150v max than it would put out 30v per cob - in other words not enough to light em up. Alegebrah
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Please explain this comment. I'm an idiot who can't read. Why would you even say 150v on a driver that's rated at 179v+/- ?
 
Major Blazer

Major Blazer

Well-Known Member
So now I'm shopping for a new driver. I own 5 CXB3590's. I want them to run at 1400mA. I'm thinking about the HLG-120H-C1400a.

We know that if we combine the voltage requirements of each COB, we would need 174.5v at this current, which is above this driver's maximum voltage range, so no it would not work.

108v is the max of this driver's capabilities.

Instead of adding all the voltages beforehand, I take 108 and divide by 5.

I'm left with 21.6

Since I know that each COB would need a minimum of 34.9v , and 21.6 is below that number, I know that the HLG-120H-C1400a will not a good candidate for this job. I select my driver based on the requirements of the LED's I intend on using, not the other way around. So if I already know that a particular LED requires 34.9v, I have 5 of them, and I know that I want to run them at 1400mA; I can look for a driver by either having already combined the voltages (like you seem to do) or I can divide the driver's max voltage by the number of LED's desired.
 
REALSTYLES

REALSTYLES

Well-Known Member
Major Blazer said:
So now I'm shopping for a new driver. I own 5 CXB3590's. I want them to run at 1400mA. I'm thinking about the HLG-120H-C1400a.

We know that if we combine the voltage requirements of each COB, we would need 174.5v at this current, which is above this driver's maximum voltage range, so no it would not work.

108v is the max of this driver's capabilities.

Instead of adding all the voltages beforehand, I take 108 and divide by 5.

I'm left with 21.6

Since I know that each COB would need a minimum of 34.9v , and 21.6 is below that number, I know that the HLG-120H-C1400a will not a good candidate for this job. I select my driver based on the requirements of the LED's I intend on using, not the other way around. So if I already know that a particular LED requires 34.9v, I have 5 of them, and I know that I want to run them at 1400mA; I can look for a driver by either having already combined the voltages (like you seem to do) or I can divide the driver's max voltage by the number of LED's desired.
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lol weren't we talking about a HLG-240H-C1400 which I own the A version. 120's are not 250 watts but I can't read lol. Better reread this whole thread buddy.
 
BOBBY_G

BOBBY_G

Well-Known Member
sounds like a lot of typing to explain the exact same thing

available driver voltage/required cob voltage = maximum number of cobs that can be driven

or

cob voltage x number of cobs = required voltage and select from any of hundreds of drivers that can fit

both valid methods
 
BOBBY_G

BOBBY_G

Well-Known Member
Major Blazer said:
So now I'm shopping for a new driver. I own 5 CXB3590's. I want them to run at 1400mA. I'm thinking about the HLG-120H-C1400a..
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i guess im puzzled why you would ever think of running 5 50W cobs and start looking at a 150W driver? unless you were tryig to make some kind of iterative example. OP is prob confused as hell at this point
 
Green__Zer0

Green__Zer0

Active Member
BOBBY_G said:
i guess im puzzled why you would ever think of running 5 50W cobs and start looking at a 150W driver? unless you were tryig to make some kind of iterative example. OP is prob confused as hell at this point
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OP Only listen to supra. So OP never confused. You confused for thinkin febble chatter could confuse me. Have I told you my GPA? No cockynes I just received 93% on polynomial exam MAT1370 homie this shyt is lyte LYTE.
And I can post transcript if needed.
 
Danielson999

Danielson999

Well-Known Member
Green__Zer0 said:
OP Only listen to supra. So OP never confused. You confused for thinkin febble chatter could confuse me. Have I told you my GPA? No cockynes I just received 93% on polynomial exam MAT1370 homie this shyt is lyte LYTE.
And I can post transcript if needed.
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No offense but an Asian bragging about his math skills is no different than an African bragging about how high he can jump. If you only wanted help from Supra, why didn't you just send him the question? Cya.
 
Danielson999

Danielson999

Well-Known Member
REALSTYLES said:
Watch what you say I'm black and American buddy you don't hear me saying nice try Canada it's ham not bacon lol.
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I'm sorry. :)
Just kidding. I was just trying to be the stereotypical Canadian and apologize. Hey I have no problem with any race or religion. I just found what he said funny.
 
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