Matching Drivers and COBs

[Olive Drab Green]

citizen and bridgelux are a generation ahead of cree, and citi is about to be 2 gens ahead in january

I have realized with these Gen 7 Vero29Cs.

 

[febisfebi]

@CobKits and

Me to, but he's order min.

Awesome, well for that price ill certainly look into them. ill start working on a solution for those then for now, and maybe decide later, but those sound really nice for that price im just about sold!
what kind of lpw are they getting at 200w or various others higher, lower wattages?. I thought they dropped off quickly in efficiency after beating the 1825 only slightly, but throw out some numbers cause i'm hearing they beat the 1825 pretty well overall, cause i'm sure the'yre a lot better, I just thought they were way expensive. I am familiar with the data sheet specs, of both but I wanna know what people are getting running them at high efficiency, or at least most cost effective efficiency setup. I dont mind losing a few % to bring my initial investment down way significantly. I'm trying to make the switch out of hid forever, but its a long hard procsess. I could see these helping that out a lot though at that price.

what driver would you suggest for two of those(i'm guessing some sort of 185 for singles), but what about dual 3818 setups? is there such a driver, other than the hlg600, which would beg for 3 3618s, unless they can really be run that hard and still get good efficiency. I know they top out at 564w, crazy huh
thanks for the advice! im glad I found out those werent twice the price of a 1825 before buying

And whats up with the crazy high voltage, 100-120v a piece seems crazy to me, but lower current I suppose. The bjb holders are only rated for 150, so they would only be good on singles. Gotta move up the the B&W 18g 458 holders. you (or anyone) got a good source on those also?

I only want 2 in single or double configuration right now but those would be badass on 200+w each cause 185's can be got for almost the same as some of the 320s, so my driver cost increase would be minimal with running them on singles. Unless there a better driver solution i'm missing for double or triple. Educate me, haha. I know you are working with these now, so i'd love to get your input. although I do need to get caught up on your thread, I apologize if some of this has been covered, i've been so busy lately I haven't harely logged on here in a while, let alone catch up on subbed threads.

im not seeing that, where are you getting that number?

also i agree with 4x 1825 smoke 2x3618s. you really need to be well up above 200W before 3618s start paying off

http://www.meanwell.com/webapp/product/search.aspx?prod=HLG-320H-C

the open circuit voltage listed for the 2800 is 118 making 59v in series
even the high end of the dimmer is 114 making 57v well over where the 53.5-54v top out
am I missing something?

Thanks all. Happy thanksgiving!!

 

[CobKits]

3618s beat 1825s by just a few lumens per watt at 150W, and then they pull away above that. up to 150W im going to recommend an 1825 ever time

 

[DesertHydro]

hello everyone, this is my first post here but i'm an ICmag regular. getting quotes together for my LED build but wanted to have some of the more knowledgeable LED guys take a look to make sure i've done my numbers right.

looking to run 32 cree cxb3590's off (4) HLG 320H-C1050B. By my calculations i've concluded that each one can run 8 @ ~40W for a total of 1260W at the wall and these should be smack dab in the sweet spot of efficiency.

ran into some sudden expenses so at the moment im looking to build my framework and heatsinks first and then place my order through alibaba for the LED gear.

another reason for doing the framework first is that in the month or so between building the framing and ordering the LED's etc i dont want any new tech to emerge that will render my cxb3590s archaic lol. i don't know much of any of the other COBs, as my main source of info is growmau5's videos on youtube.

here is my quote list in case anyone wants current prices from kingbrite:
32 CXB3590 3500K top bin $33 each/$1056 total
32 ideal solder-less COB holders $2.80 each/$89.60 total
32 reflector adapters 1$ each/ $32 total
32 reflectors $.80 each/$25.60 total
4 HLG 320H-C1050B $86 each/$344 total
shipping $77
bank transfer or paypal $20/ 4.5% ~$75

Total $1644-$1697

For the heatsinks i'm looking at ( 36" X 5.886" $501.12
Framework 6061 1" angle aluminum 1/8" thick, 28' total $33.42

~$2231.54..........WOW lol
how we lookin' so far? still need little stuff like the wire, wago connectors, shrink wrap etc...

 

[CobKits]

i dont want any new tech to emerge that will render my cxb3590s archaic lol.

they kind of already are. you can get the same performance out of cobs that cost 1/2-2/3 as much as that. same setup but there are a lot more options on the market since growmau5 made his most excellent video series back then

 

[DesertHydro]

they kind of already are. you can get the same performance out of cobs that cost 1/2-2/3 as much as that. same setup but there are a lot more options on the market since growmau5 made his most excellent video series back then

what are the options, the vero 29s/ citizens? pardon my ignorance. im trying to learn as much as possible

 

[febisfebi]

3618s beat 1825s by just a few lumens per watt at 150W, and then they pull away above that. up to 150W im going to recommend an 1825 ever time

I'm talking at least 200-250w and over. Where is the sweet spot wattage wise and what drivers are good matches for 2-3 maybe 3618s on a circuit and/or separate drivers and circuits for each in order to accomplish ?
I'd love to hear more about their efficiency numbers at these and other wattages, now that I am looking at using them. Sounds like they hold their efficiency better than I thought !
Thanks guys andy you all have a happy Thanksgiving!!

 

[welight]

hello everyone, this is my first post here but i'm an ICmag regular. getting quotes together for my LED build but wanted to have some of the more knowledgeable LED guys take a look to make sure i've done my numbers right.

looking to run 32 cree cxb3590's off (4) HLG 320H-C1050B. By my calculations i've concluded that each one can run 8 @ ~40W for a total of 1260W at the wall and these should be smack dab in the sweet spot of efficiency.

ran into some sudden expenses so at the moment im looking to build my framework and heatsinks first and then place my order through alibaba for the LED gear.

another reason for doing the framework first is that in the month or so between building the framing and ordering the LED's etc i dont want any new tech to emerge that will render my cxb3590s archaic lol. i don't know much of any of the other COBs, as my main source of info is growmau5's videos on youtube.

here is my quote list in case anyone wants current prices from kingbrite:
32 CXB3590 3500K top bin $33 each/$1056 total
32 ideal solder-less COB holders $2.80 each/$89.60 total
32 reflector adapters 1$ each/ $32 total
32 reflectors $.80 each/$25.60 total
4 HLG 320H-C1050B $86 each/$344 total
shipping $77
bank transfer or paypal $20/ 4.5% ~$75

Total $1644-$1697

For the heatsinks i'm looking at ( 36" X 5.886" $501.12
Framework 6061 1" angle aluminum 1/8" thick, 28' total $33.42

~$2231.54..........WOW lol
how we lookin' so far? still need little stuff like the wire, wago connectors, shrink wrap etc...

I have lower prices on all that and you would only need 3 of our ZPE 400 watt drivers, 3 will run 33 cobs at 1050ma,
Cheers
Mark

 

[DesertHydro]

I have lower prices on all that and you would only need 3 of our ZPE 400 watt drivers, 3 will run 33 cobs at 1050ma,
Cheers
Mark

Good to know. What's the link to your site?

 

[welight]

Good to know. What's the link to your site?

check my sig
cheers
Mark

 

[DesertHydro]

after doing a bunch of research of the last few days now I'm second guessing the cxb's, looks like I can do the 1818s for cheaper and get the same or near performance, 1825s for the same price and get more out of them, or vero 29s and save some cash. the savings could pay for my heatsinks or something else. I'm not trying to skimp but the name of the game is efficiency and its not very efficient to spend extra money to get the same thing. I'm trying to cover a 4x8 tent but I wanna blast as much light as the kids can use. any input is appreciated at this point.

CLU048-1212C4-303M2K1: 10.35usd/pcs;
CLU048-1212C4-353M2K1: 10.35usd/pcs
CLU048-1812C4-303M2K1: 15.25usd/pcs;
CLU048-1812C4-353M2K1: 15.25usd/pcs;
CLU048-1818C4-303M2K1: 21.25usd/pcs;
CLU048-1818C4-353M2K1: 21.25usd/pcs
CLU058-1825C4-303M2K1: 35.26usd/pcs;
CLU058-1825C4-353M2K1: 35.26usd/pcs;
Bridgelux Vero29 Gen7 3000K, 3500K, 4000K, 5000K is available. unit price: 24.5usd/pcs;

pre-drilled heatsink Φ120*H70mm(for 40-50W): 9.5usd/pcs

 

[CoB_nUt]

Damn, so my 4 cxb 3590's sitting in a box awaiting my final light bar build are nearly obsolete? Lol, I've only been running the bars I've built for. 6 1/2 - 7 months! This is what I get for slacking on my diy current cob tech knowledge. That and no internet access for nearly a month doesn't help either.

 

[ttystikk]

Damn, so my 4 cxb 3590's sitting in a box awaiting my final light bar build are nearly obsolete? Lol, I've only been running the bars I've built for. 6 1/2 - 7 months! This is what I get for slacking on my diy current cob tech knowledge. That and no internet access for nearly a month doesn't help either.

Imagine how I feel!

 

[Rocket Soul]

I am going to run Hlg-240h-2100b and 2x clu1825 per driver.

I just need to confirm these will be wired to the cobs in series correct?

I don't have my potentiometer yet so can I still fire it up?

Other than that I'm basically assembled and ready to go.

Ive tried running my 1825s both with hlg185-48A (maxing voltage and current, 1 driver per cob) and using hlg240c2100 (dimmer lead open and 2 cobs in series) and they gave a very similar amount of light even though the first setup was about 400 watts and the 2nd was 250w. Hlg240 is the way to go on this one IMO

 

[bassman999]

Damn, so my 4 cxb 3590's sitting in a box awaiting my final light bar build are nearly obsolete? Lol, I've only been running the bars I've built for. 6 1/2 - 7 months! This is what I get for slacking on my diy current cob tech knowledge. That and no internet access for nearly a month doesn't help either.

I have CXAs and CXBs and they might be generations behind, but I can kill 1gpw all day.
Thinking about another small tent and some newer cobs to underdrive for it.

 

[DesertHydro]

Good to know! I know that I can't really go wrong with any of them but I just wanna give LEDs a fair shot this time. Right now I'm thinking 24 1818s over a 4x8 driven by 1.4 amp drivers(not sure which wattage yet) hoping the new 480s come out soon

Any idea at what point the law of diminished returns begins? By my calculations I'm around 1335 ppfd with this setup

 

[ttystikk]

Good to know! I know that I can't really go wrong with any of them but I just wanna give LEDs a fair shot this time. Right now I'm thinking 24 1818s over a 4x8 driven by 1.4 amp drivers(not sure which wattage yet) hoping the new 480s come out soon

Any idea at what point the law of diminished returns begins? By my calculations I'm around 1335 ppfd with this setup

I'd say you're well past it.

 

[DesertHydro]

I'd say you're well past it.

My numbers are a bit high because my shit tent is less than 4x8 and my home made flood table is even less than that. I'm at about 28sq ft of growing space on my table.

 

[CobKits]

after doing a bunch of research of the last few days now I'm second guessing the cxb's, looks like I can do the 1818s for cheaper and get the same or near performance, 1825s for the same price and get more out of them, or vero 29s and save some cash. the savings could pay for my heatsinks or something else. I'm not trying to skimp but the name of the game is efficiency and its not very efficient to spend extra money to get the same thing. I'm trying to cover a 4x8 tent but I wanna blast as much light as the kids can use. any input is appreciated at this point.

CLU048-1212C4-303M2K1: 10.35usd/pcs;
CLU048-1212C4-353M2K1: 10.35usd/pcs
CLU048-1812C4-303M2K1: 15.25usd/pcs;
CLU048-1812C4-353M2K1: 15.25usd/pcs;
CLU048-1818C4-303M2K1: 21.25usd/pcs;
CLU048-1818C4-353M2K1: 21.25usd/pcs
CLU058-1825C4-303M2K1: 35.26usd/pcs;
CLU058-1825C4-353M2K1: 35.26usd/pcs;
Bridgelux Vero29 Gen7 3000K, 3500K, 4000K, 5000K is available. unit price: 24.5usd/pcs;

pre-drilled heatsink Φ120*H70mm(for 40-50W): 9.5usd/pcs

after shipping and paypal fees im right there with jerry on price

 

[Budzbuddha]

What cobs would work with this driver ?
Looking to do a Mars Conversion .... 50w drivers ( 6 of them )