Matching Drivers and COBs

kliend said:
From where did you obtain the driver?

Also, how long did you run it on the Kill A Watt? For a few hours? Or just when you first plug it in?
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Hello kliend,
THANKS for help, i bought the driver at TME.EU/DE/

yes, i just used it when i first plug it in, maybe for max for 20min-40min i think
 
alesh said:
MW drivers usually put out slightly more than rated current. Did you measure the actual current?
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Hello alesh,
do u mean with multimeter? which i connect in series at the led fixture? If yes, no i was to afraid to do that :( i read here in forum it can be dangerous if u do it wrong:/
I have really less knowledge about LEDS and ELECTRIC, my little knowledge i collected here in forum:/

I thought it would be enought to adjust the Watt consum of my LED fixture with the help of my KILL A WATT.
 
Malocan said:
Hello Sir,
is that the way how to calculate the whole power(Watt) consum of the Led fixture with 2 different driver settings?
If yes, im a bit confused because last week i did build my first led light (@64%
(8 ) CXB3590 3500K CD @ 700mA (23W ea) $380
(1) HLG-185H-C700 $65
184 dissipation W ->66W heat ->)

If i try now to calculate 184Watt / 0,94 = 195 ,744 Watt
But if i check the Watt consum with a KILL A WATT (AMP meter), it says me i use 216,4 Watt

Did i something wrong? or did i use just wrong formula to calculate :?
Click to expand...
I have done the exact build as you and get the same total watts 216w. I thought this was odd as well. Even more so that you have had the same result.
Cheers,
Will
 
Will Thayer said:
I have done the exact build as you and get the same total watts 216w. I thought this was odd as well. Even more so that you have had the same result.
Cheers,
Will
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Hello Will,
thx for ur answer, that calm me down a bit that we have the same result :/. So our both lights runs with more then 700ma? If i dimm my light to 195 ,744 Watt, then the LEDS should run with 700ma?
 
Malocan said:
Hello Will,
thx for ur answer, that calm me down a bit that we have the same result :/. So our both lights runs with more then 700ma? If i dimm my light to 195 ,744 Watt, then the LEDS should run with 700ma?
Click to expand...

I am afraid any answer I give you would be speculative at best. I think it has been mentioned that Mean Well driver run at a slightly higher current than specified.

I will not be dimming mine just yet. Like you I only ran mine for a few minutes to check my wiring because I have not sorted the fans and shrouds out yet.

The only difference between your fixture and mine is that I added 6x Olson ssl hyper reds in the string.
I would listen to the more knowledgeable members here as like you my COB DIY experience is in its infancy.

I am not sure my math is correct on this 36v*.7A *8 COBs = 201.6w add 2.4v*.7A*6 SSL hyper reds = 10.08w for a total of 211.68w
Another point that may or may not have an influence is my electrical supply is 230-240v here in Europe.

Cheers,
Will
 
Bonjour
I guess you are both from DE!
I have to pick a kill-a-watt!
I am curious now how many watt my hlg use???
And yes there's a difference between 110v and 220v...220v is better!
CU
 
Will Thayer said:
I am afraid any answer I give you would be speculative at best. I think it has been mentioned that Mean Well driver run at a slightly higher current than specified.

I will not be dimming mine just yet. Like you I only ran mine for a few minutes to check my wiring because I have not sorted the fans and shrouds out yet.

The only difference between your fixture and mine is that I added 6x Olson ssl hyper reds in the string.
I would listen to the more knowledgeable members here as like you my COB DIY experience is in its infancy.

I am not sure my math is correct on this 36v*.7A *8 COBs = 201.6w add 2.4v*.7A*6 SSL hyper reds = 10.08w for a total of 211.68w
Another point that may or may not have an influence is my electrical supply is 230-240v here in Europe.

Cheers,
Will
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hm, i think ur math is not correct. At 0,7 A the CXB 3590 CD 36V should use 32,5V or 33V , but im not sure.
Then it would be 33V * 0,7A * 8 COBs = 184,8 W and if i look at the datasheet from oslon ssl hyper Red it need less then 2,4V at 0,7A.

i live too in euro Europe.
 
Malocan said:
hm, i think ur math is not correct. At 0,7 A the CXB 3590 CD 36V should use 32,5V or 33V , but im not sure.
Then it would be 33V * 0,7A * 8 COBs = 184,8 W and if i look at the datasheet from oslon ssl hyper Red it need less than 2,4V at 0,7A.

i live too in euro Europe.
Click to expand...

Thank you, I see my error now. When I get the fans and shrouds hooked up I will check current with Multimeter.
I am not from DE. I live in UK.

Cheers,
Will
 
Bonjour
Sorry will...it is an other member...too many peoples too many weed...confusion!!!
And I smoke only 1/1.5gr day...no.more...but I really smoke...not like 95% of other smoker...I explain...every time I see a vid on weed or ash the guy blow some at the end...it is like he breeze it than immediately put off the smoke...lol...it is not smoking for me...When I smoke I respect the products...so I keep it in my lungs as long as I can to fell it...smoking like some are is a waste of time/weed/money!
Cxb 36V @700mA are 32.72V and 64%
Have a great day ★
 
After being a hater at first when this site broke loose on these cob builds (probably due to my hps investments and lack of understanding at times) I want to put in my research time.
So a member a while back posted this pic (thanks for the cad pic). I was just wondering if one was to run the cxb 3590 instead of the 3070 with the same drivers in the pic, is it still a beast of a lamp? Im just trying to slowly wrap my head around all this info on this site.
 

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a mongo frog said:
After being a hater at first when this site broke loose on these cob builds (probably due to my hps investments and lack of understanding at times) I want to put in my research time.
So a member a while back posted this pic (thanks for the cad pic). I was just wondering if one was to run the cxb 3590 instead of the 3070 with the same drivers in the pic, is it still a beast of a lamp? Im just trying to slowly wrap my head around all this info on this site.
Click to expand...
Would be all good. An upgrade basically. 36v 3590's work/run the same as a 3070 for all intents and purposes. Anything you could think to do with a 3070, you could do with a 3590 36v.
 
Found a supply of Meanwells..... Now I know why we cannot get the new 240's :)
Jfody7Y.jpg

c19rd6G.jpg
 
littlejacob said:
Bonjour
Yep!...23 driver × 250w = 5750w!
You must smoke a lot...lol!!!!
7kg...I guess...maybe more!
Great!
CU
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Seeing that while I m running 234 watts currently
I have a pair of drivers (HLG-185H-36B)coming that will up me to 374 watts across 6 cxa3070s.
I have dimmers coming as well
I will add more cobs to it soon as well.
I have had much bigger grows, but I m still excited for my 1st led grow.
 
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Bonjour
Knowing that hlg-185-1400 could put out 1540mA if we fallow this logic!
Maybe that's why they consume more w than they supposed to.
Someone could do the math!??
How many watt they should use @1540mA? And to know if it is 216w!
CU
 
robincnn said:
@Malocan @Will Thayer
Here is the test report. Like alesh said meanwell drivers usually put more current than what they are rated for. See how in the test report driver HLG-185H-C700 was giving 0.77Amps instead of 0.7
http://www.meanwell.com/mw_search/hlg-185h-c/HLG-185H-C700-RPT.PDF
View attachment 3558238
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Hello Robincnn
Thanks for that informations, with that numbers it make much more sense that my light use 216,4 Watt

0,7708A * 33V * 8 COBS = 203,4912W
203,4912W / 0,94%(driver) = 216,48W

If i would dimm my light to 195,10 Watt output, would my COBS run then with 700ma?

0,7A * 32.75V * 8 COBS = 183,4W
183,4W / 0,94%(driver) = 195,10W

Thanks again Robincnn
 
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