OLD MOTHER SATIVA
Well-Known Member
hlg-185<--- is the watts
DiY LEDs - How to Power Them
- Thread starter SupraSPL
- Start date
JorgeGonzales
Well-Known Member
Well...with the CV/CC drivers it is ~watts, the ones that end in -42A, -36B etc. But the constant current versions, -1400B etc usually give you a little extra juice.
For instance, the HLG-185 is 185W in the CV/CC models and 200W in the CC. It varies with drivers though, so worth a quick check on the data sheet.
I think it's true to say that number is the minimum amount of wattage.
Anywho.
OLD MOTHER SATIVA
Well-Known Member
jorge..sure
but the guy said 185 were the volts..do not confuse him more
but the guy said 185 were the volts..do not confuse him more
JorgeGonzales
Well-Known Member
It was more for future readers. Like anybody is wading through 145 pages to get here
ahael
New Member
Hi everyone : )
Im new, so HELLO for each of You : )
What I looking for, and Im not specialist - is electronic segment : /
That why I looking for help.
I want to build my own C.O.B. panel ( CREE CXA3590-0000-000R00BB30F , HighPower LED , 3000K, 150 W, 9750 lm , 77 V 1800 mA )
And what I found , is this - Mean Well LPC-150-2100
- 2100 mA
- 36 V to 72 V
- 151.2 W
- 180 VAC to 305 VAC, 254 VDC to 431 VDC
My question is, CXA work on 72-77V , so shoudl be ok, BUT meanwell have 2.1A , CXA need's 1.8A
Did will be ok, when I assembly and run this stuff ? 2.1A on driver is ok ? Or I shoudl looking for something else ?
Take care crew
Waiting for respond
Best Regards
Michal
Im new, so HELLO for each of You : )
What I looking for, and Im not specialist - is electronic segment : /
That why I looking for help.
I want to build my own C.O.B. panel ( CREE CXA3590-0000-000R00BB30F , HighPower LED , 3000K, 150 W, 9750 lm , 77 V 1800 mA )
And what I found , is this - Mean Well LPC-150-2100
- 2100 mA
- 36 V to 72 V
- 151.2 W
- 180 VAC to 305 VAC, 254 VDC to 431 VDC
My question is, CXA work on 72-77V , so shoudl be ok, BUT meanwell have 2.1A , CXA need's 1.8A
Did will be ok, when I assembly and run this stuff ? 2.1A on driver is ok ? Or I shoudl looking for something else ?
Take care crew
Waiting for respond
Best Regards
Michal
JorgeGonzales
Well-Known Member
That is not a safe current for the 72V CXA3590. Sorry. You need 1800ma or below.
JorgeGonzales
Well-Known Member
Like, how many cobs, and how big a space? That's really the important bit.
JorgeGonzales
Well-Known Member
Three or four over .25 sq meter? Or one per .25 sq meter?
Either way, I guess the answer is you probably want 700-1050ma each, and a large passive heatsink to cool each one.
Either way, I guess the answer is you probably want 700-1050ma each, and a large passive heatsink to cool each one.
Forrestfirebuds
Member
Yep the watts not the volts. My mistake.
ahael
New Member
At the moment one COB - on 0.25m2
Correct - one ACTIVE ( radiator + went ) coller.
So - what I shoudl do, to make it " light " those one , is buy a driver between 700 - 1050ma ? 72V , 150W - correct ?
Can You advice whith one , for example ?
Take care crew
Have a nice day
JorgeGonzales
Well-Known Member
One cob at 700mA is going to use 50-51W, at 1050mA about 80W. Visit http://cree.pct.com to help you figure this stuff out. That's a big space to light with 4 CXA3590.At the moment one COB - on 0.25m2
Correct - one ACTIVE ( radiator + went ) coller.
So - what I shoudl do, to make it " light " those one , is buy a driver between 700 - 1050ma ? 72V , 150W - correct ?
Can You advice whith one , for example ?
Take care crew
Have a nice day
ahael
New Member
H
Hey - yes true, but look that this cob need 1.8a so meaby I wrong , I need some more pwr in amp device... So no more advice - example for a device ... ? Have a good day - cheers
ahael
New Member
I wrote from phone yesterday, so were quiet hart to encrypt my sh..t english
I decide to buy
Mean Well LPC 150 - 1400
Output Current-Channel 1: 1400 mA
Output Voltage-Channel 1: 54 V to 108 V
Output Power: 151.2 W
Input Voltage: 180 VAC to 305 VAC, 254 VDC to 431 VDC
for :
at the moment - Cree CXA3590-0000-000R00BB30F
Kleurtemperatuur typisch - 3000 K
Kleurweergave index - 80
Lichtstroom (Φ) - 9750 lm
UF - 77 V
IF - 1800 mA
Vermogen - 150 W
What You guys think about this combo ?
I read , that mA mostly have influence on lumens - correct ??
If somebody can help me with this - I will be grateful.
Before I had only experience with HPS and MH lights - easy one.
Here , with COB , is hard to burn it, a lot of unknown specyfication.
Best Regards
Michal
Malocan
Well-Known Member
Hi,I wrote from phone yesterday, so were quiet hart to encrypt my sh..t english
I decide to buy
Mean Well LPC 150 - 1400
Output Current-Channel 1: 1400 mA
Output Voltage-Chann
s - correct ??
If somebody can help me with this - I will be grateful.
Before I had only experience with HPS and MH lights - easy one.
Here , with COB , is hard to burn it, a lot of unknown specyfication.
Best Regards
Michal
why this cob ? Cree CXA3590-0000-000R00BB30F
Do you bought them allready? or dou plan to buy them?
ahael
New Member
Hey,
So. System Will go on HLG-185H-C1050B - two cob's CXA - 72V , 1.8A , 138W
BUT not on full power - now I know where the problem were.
For one COB - 1.05A - so is still much, but Ill will make it coolest as possible.
So I shoudl get 150W from this two cob's on GBox - 0.36m2.
151 on 76W each cob - output heat :
passiwe coolin radiator 9120cm² -> (2) 10"X10" radiator
active coolin radiator 3040 cm² min -> 3.5" X 30" radiator to spread heat
( thanks mate for calculate and help ! )
Why ? I look for CXB ... cannot find. Than later , mate from IC gave me advice where to buy - but I already bought CXA - that why :\
Always somethink else
peace
Michal
Hopefully this will be my last question. My list below.
5x CXB3590 $200
5x Ideal 50-2303CR $15
5x Ideal 50-2300AN $10
5x 180mm pin fin heatisnk $100
1x Meanwell HLG-240H-C1400B $70
What spectrum should I buy the COBs in? 3500k, 4000k, or one with additional lightning? Are there any additional supplemental lights I should buy or just those COBs?
Do I need the 180mm pin fin heatsinks or can I go smaller?
I plan to run the COBs at about 1050ma I think.
5x CXB3590 $200
5x Ideal 50-2303CR $15
5x Ideal 50-2300AN $10
5x 180mm pin fin heatisnk $100
1x Meanwell HLG-240H-C1400B $70
What spectrum should I buy the COBs in? 3500k, 4000k, or one with additional lightning? Are there any additional supplemental lights I should buy or just those COBs?
Do I need the 180mm pin fin heatsinks or can I go smaller?
I plan to run the COBs at about 1050ma I think.
Last edited:
REALSTYLES
Well-Known Member
Why CXA? When I can get you CXB I have that kit with reflectors pm me
Meant to say CXB. Edited. I looked at a few kits and I rather save the $100 and just build it myself and source things from KingBrite. Appreciate the offer though. If I end up getting lazy then I'll look into a kit.