Luminus CXM-32 Gen3 the next big thing??

Abiqua · Jan 6, 2017

CobKits said:
http://www.luminus.com/calculator/

3000k 80 cri.
approx LER 320

View attachment 3870182

Didn,t you say to ad 2-3% in effiency for the 32? Just to clarify for @john0000 so you can calculate for 1.4 and 1.7 amps of current.

bassman999 · Jan 6, 2017

Silver or lead said:
You have all 3. What do you think?

Im still working on building the lights.
Back cramped up last night so looks like Sunday Ill work on them some more.
I hope that Bobby is right and that they are closer in reality than paper shows.
I know they will still be better than HPS regardless.

CobKits · Jan 7, 2017

Abiqua said:
Didn,t you say to ad 2-3% in effiency for the 32? Just to clarify for @john0000 so you can calculate for 1.4 and 1.7 amps of current.

in my tests these ran closer than this so take the calculator for what its worth. cxm22 looks low to me.

ill try to run them in the sphere soon but that wont be for a week. the only cxm32 i have is 4000k 80cri but i also have a 4000k 80 cxm22 to compare it to. i ran the 32 but for some reason never graphed it but i did crunch the numbers as a quick check, that hard copy of the log sheet eludes me right now . the chip is on a pinfin ill have to remount if for the sphere or i can just do the old 12" spot test the graphs below are for 3000k 80cri

bassman999 · Jan 7, 2017

CobKits said:
in my tests these ran closer than this so take the calculator for what its worth. cxm22 looks low to me.

ill try to run them in the sphere soon but that wont be for a week. the only cxm32 i have is 4000k 80cri but i also have a 4000k 80 cxm22 to compare it to. i ran the 32 but for some reason never graphed it but i did crunch the numbers as a quick check, that hard copy of the log sheet eludes me right now . the chip is on a pinfin ill have to remount if for the sphere or i can just do the old 12" spot test the graphs below are for 3000k 80cri
View attachment 3870206

What is the blue line?

Silver or lead · Jan 7, 2017

I don't have a Cree to compare to but I did compare the cxm to a citizen 1212 3500k 90cri on a phone app. Of course this is a very unscientific test. It showed that the cxm was very slightly more efficient at 54 watts than the citizen is at 25 which lines up very well with what he has claimed so for.

I I did the same test on a CFL and t8 fixture and they just got murdered.

AtterStiga · Jan 7, 2017

Seems like these (cxm22) are best wired in parallel. I'm thinking the hlg185h would drive four of them @50w. Or rather, I was thinking that until I found out that the cc version gives more watt than the cv version.

So now I'm wondering which driver suits these babies the best. I love my cxb3590 four cob bars, run by one hlg185h-c1400b each. There is a real possibility that I'm wrong, but it seems the perfect spread, 3 bars of 4 cobs in a 3x4. It strikes me as a symmetrical and easily expandable into 3x8, 4x8, 4x4, etc.

Looks like the hlg240 is a better fit for this cob, about 200w in series, so extra cost for drivers... I assume it would be possible to get more out of the cv version of the 240 but I can't solve it yet. Would I have to use the 54v driver? Jesus, just when I got a grip on the series shit, now I have to learn another language lol.

bassman999 · Jan 7, 2017

AtterStiga said:
Seems like these (cxm22) are best wired in parallel. I'm thinking the hlg185h would drive four of them @50w. Or rather, I was thinking that until I found out that the cc version gives more watt than the cv version.

So now I'm wondering which driver suits these babies the best. I love my cxb3590 four cob bars, run by one hlg185h-c1400b each. There is a real possibility that I'm wrong, but it seems the perfect spread, 3 bars of 4 cobs in a 3x4. It strikes me as a symmetrical and easily expandable into 3x8, 4x8, 4x4, etc.

Looks like the hlg240 is a better fit for this cob, about 200w in series, so extra cost for drivers... I assume it would be possible to get more out of the cv version of the 240 but I can't solve it yet. Would I have to use the 54v driver? Jesus, just when I got a grip on the series shit, now I have to learn another language lol.

Keep in ind the CXB is 36V Nom, and the CXM22 is 50V Nom.
This means that the watt per cob with CXB on is roungly 50watts with 1400ma driver, compared to the CXM on 1050Ma driver getting around 52 watts

AtterStiga · Jan 7, 2017

bassman999 said:
Keep in ind the CXB is 36V Nom, and the CXM22 is 50V Nom.
This means that the watt per cob with CXB on is roungly 50watts with 1400ma driver, compared to the CXM on 1050Ma driver getting around 52 watts

I actually managed to keep that in mind, lol. I started my post assuming that 4 cxm22 on a hlg185h-c1050 equaled 4 cxb3590 on a hlg185h-c1400, but found it was 190v, thus not enough. The cxm22 seems to have great advantage economically speaking, but it seems to be depending on finding the correct driver so not too much driver potential goes unused. My ocd likes the symmetry of equal bars, and if I buy a tent for my upgrade they're symmetrical too. Long story short, I'm looking for a well utilized driver that can run four cxm22 in the neighbourhood of 50w each cob. My next run will be a vs, just working out which is going against my cxb3590s.

bassman999 · Jan 7, 2017

AtterStiga said:
I actually managed to keep that in mind, lol. I started my post assuming that 4 cxm22 on a hlg185h-c1050 equaled 4 cxb3590 on a hlg185h-c1400, but found it was 190v, thus not enough. The cxm22 seems to have great advantage economically speaking, but it seems to be depending on finding the correct driver so not too much driver potential goes unused. My ocd likes the symmetry of equal bars, and if I buy a tent for my upgrade they're symmetrical too. Long story short, I'm looking for a well utilized driver that can run four cxm22 in the neighbourhood of 50w each cob. My next run will be a vs, just working out which is going against my cxb3590s.

Thats why I like constant V drivers, you can put as many as you want and control wattage they receive at the same time.
HLH-240H-48A or HLH-240H-52B could work for you

Chronikool · Jan 7, 2017

AtterStiga said:
I actually managed to keep that in mind, lol. I started my post assuming that 4 cxm22 on a hlg185h-c1050 equaled 4 cxb3590 on a hlg185h-c1400, but found it was 190v, thus not enough. The cxm22 seems to have great advantage economically speaking, but it seems to be depending on finding the correct driver so not too much driver potential goes unused. My ocd likes the symmetry of equal bars, and if I buy a tent for my upgrade they're symmetrical too. Long story short, I'm looking for a well utilized driver that can run four cxm22 in the neighbourhood of 50w each cob. My next run will be a vs, just working out which is going against my cxb3590s.

HGL-320H-C1050 will get you your 50w...but I guess there will be about 100v not used...

Upgrade options for later..???

Silver or lead · Jan 7, 2017

bassman999 said:
Thats why I like constant V drivers, you can put as many as you want and control wattage they receive at the same time.
HLH-240H-48A or HLH-240H-52B could work for you

Yep, so much easier this way.

bassman999 · Jan 7, 2017

Silver or lead said:
Yep, so much easier this way.

Series makes for cleaner wiring though

Silver or lead · Jan 7, 2017

bassman999 said:
Series makes for cleaner wiring though

Hmm, are there constant voltage drivers that are wired up in series? I guess I'm just used to the ones cobkits.com sells that are wired up in parallel.

bassman999 · Jan 7, 2017

Silver or lead said:
Hmm, are there constant voltage drivers that are wired up in series? I guess I'm just used to the ones cobkits.com sells that are wired up in parallel.

Constant current (HLG-185H-C1400) wire series, constant Voltage (HLG-240H-52B) wire in parallel.

kaivorth · Jan 9, 2017

The meanwell drivers:

The B series gives you the option to install a custom potentiometer.
The C series has one built in right? Any other reasons to get a C over a B or do I pretty much have it?

Also, do mounting screws come with the holder or the pinfin heatsink?

Organic Miner · Jan 9, 2017

kaivorth said:
The meanwell drivers:

The B series gives you the option to install a custom potentiometer.
The C series has one built in right? Any other reasons to get a C over a B or do I pretty much have it?

Also, do mounting screws come with the holder or the pinfin heatsink?

B is not just a potentiometer, it also supports PWM. So, if you want to remote control it with an Arduino or something you can.

bassman999 · Jan 9, 2017

Organic Miner said:
B is not just a potentiometer, it also supports PWM. So, if you want to remote control it with an Arduino or something you can.

Good point

kaivorth · Jan 10, 2017

The C it is, I just want to manually dim. One less thing to solder and buy. Thanks for the input!!

Fastslappy · Jan 10, 2017

The C have a limited dimming u can't go down to say 10% & the internal pot is fragile it's actually meant to set & forget,not intended,designed for multiple adjustment

bassman999 · Jan 10, 2017

kaivorth said:
The C it is, I just want to manually dim. One less thing to solder and buy. Thanks for the input!!

Fastslappy said:
The C have a limited dimming u can't go down to say 10% & the internal pot is fragile it's actually meant to set & forget,not intended,designed for multiple adjustment

I use the internal pot type for my street light veg lights, and the internal pot is a plastic screw ad it starts to strip out after 30-40 uses because I cant see the thread well deep in there. And it only dims to around 50%

Luminus CXM-32 Gen3 the next big thing??

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