Luminus CXM-32 Gen3 the next big thing??

[CobKits]

My plan is to try out the Hlg-320H-C1400 on (4) CXM32s

that should work great i use that setup with 4 1825s and it does great in a 3x3

 

[bassman999]

cxm22 (50V) and clm22 (36V) are the best match for 3590 right now and are cheap.. and i love the 22mm LES. the cxm32 is a good flagship chip but 32mm les's have less holder options. i keep writing ideal telling them they need to make a holder for the clu058/cxm32, maybe you guys could help pester them as well. there is no ledil reflector that fits these chips without soldering chips and modifying holders

Besides holders and reflectors how do you think the CXM32 will compare to the CXM22 and CLM22? efficiency and spectrum wise etc...?

 

[CobKits]

ill post up my new charts when i get a chance but bottom line is at lower wattages like we use (~50W), the larger chips have little advantage the cxm22 hangs with the 1825, 3618, vero29 72v etc in this area. were talking like double the price for 1-3% efficacy in many cases

 

[bassman999]

that should work great i use that setup with 4 1825s and it does great in a 3x3

I underdrive my Cree cobs much more than that, but I think these will be more efficient and will still have the dimming option

 

[bassman999]

ill post up my new charts when i get a chance but bottom line is at lower wattages like we use (~50W), the larger chips have little advantage the cxm22 hangs with the 1825, 3618, vero29 72v etc in this area. were talking like double the price for 1-3% efficacy in many cases

I am seeing conflicting spec for the Gen7s, can you verify the LM/W they offer?

My tiny grow is all about maximum efficiency since I have so little area to work with

 

[Fastslappy]

How are you gonna run them?

@700m 5 on a 185-700
cpu coolers

 

[bassman999]

@700

You said that before I remember now

 

[CobKits]

i havent graphed these yet but i have the raw data here

this is the standard 12" on-axis spot test, 1000 mA

1818 51.67V,439 PAR > 8.496 PAR/W @ 51.67W
1825 50.16V,448 PAR > 8.93 PAR/W @ 50.16W
cxm22 51.16V, 454 PAR > 8.87 PAR/W @51.16W
cxm32 49.41V, 451 PAR > 9.12 PAR/W @ 49.41W


thats not really a graph and slightly biases the lower voltage chips because on a par/W vs W curves these datapoints wouldnt line up vertically (i.e a CXM32 is 9.12@ 49.41W but is really a little under 9.1@ the 51.16W the cxm 22 is at.

so a 2.5% difference in PAR/W for cxm32 over 22 @ 50W

now the cxm22 is pretty much right on the money with the 1825 and beating the more expensive 1818 by about 4% in a package with easy holder and reflector options, which is why i went for that as my new go-to

 

[Fastslappy]

You said that before I remember now

that's about 35 watts per soo I might even get away with no fan on the sinks we'll see but i've got a few different styles some have fancy heat pipes & fin combos got em dirt cheap

 

[CobKits]

@700m 5 on a 185-700
cpu coolers

@700 mA
1818 50.11V,317 PAR >9.04 PAR/W @ 35.08W
1825 49.29V,320 PAR > 9.28 PAR/W @ 34.50W
cxm22 49.99V, 327 PAR > 9.35 PAR/W @34.99W
cxm32 48.69V, 323 PAR > 9.48 PAR/W @ 34.08W

^^
despite being the cheapest chip of the bunch, CXM22 beating 1825 and 1818, CXM32 costs twice as much as the CXM22 but is only worth about 1% in efficacy and the cxm22 is actually throwing down more par assuming with its slightly higher voltage you can still fit the same number on a CC driver as the CXM32

 

[CobKits]

thats a 4000k test, i did run a quick test of the 3000k cxm22 and it was damn close to the 4000k on par/W which is a very, very very good sign, as on paper it should be 2 "bins" below 4000k

i need to get back into town and clear out some orders but expect a real 3000k shootout in the sphere soon

 

[Fastslappy]

yeah when u 1st told me about these I've been stoked ,
1st light will be on large salvage sinks outta sum amps passive
trying to do a real budget build here with salvage sinks & cpu sinks
my 3590 flower room is over one cob per sq ft ran @1400 on pin sinks

 

[BM9AGS]

Damn. Looks we have another light to push Cree further away. Competition is great for us consumers. If Crees next chip which has been said to being out any day now for about a year, but if it's not top then they're gonna be old news by next year.

 

[GreenMotion]

CXM 22 looking very nice. Might consider them for my next build. What do you guys think about seoul chips?

http://www.seoulsemicon.com/_upload/Goods_Spec/SDWx7F1C_ZC100_datasheet_Rev3.1_161110(0).pdf

 

[bri77]

Man these 22s change the way you think about building a light.

So @CobKits , if you were asked to build a 1000w DE HPS replacement fixture, what would it be now?

10 x https://cobkits.com/product/cxm22-light-engine/
powered by $200 worth of drivers
+ 150 bucks for , frame, accessories etc

~750w at 1400a for $800

800w for 600 bucks looks doable if you squint a bit.

 

[welight]

I am seeing conflicting spec for the Gen7s, can you verify the LM/W they offer?

My tiny grow is all about maximum efficiency since I have so little area to work with

where do you see a conflict?
Cheers
Mark

 

[bassman999]

where do you see a conflict?
Cheers
Mark

Spec sheet from MFG vs spec sheet at Digikey.
Although looking today it seems maybe they fixed it

Spec sheet 160 lm/w
Digikey used to say 147 lm/w now says 159

 

[bassman999]

All 3500K 80 CRI

CMX22:
CXM-22-35-80-54-AC30-F4-3-ND

Flux @ Current/Temperature - Test 8530 lm (Typ)
Current - Test 1.1A
Temperature - Test 85°C
Voltage - Forward (Vf) (Typ) 51V
Lumens/Watt @ Current - Test 152 lm/W

CXM32:
CXM-32-35-80-54-AC30-F4-3

Flux @ Current/Temperature - Test 17810 lm (Typ)
Current - Test 2.2A
Temperature - Test 85°C
Voltage - Forward (Vf) (Typ) 51V
Lumens/Watt @ Current - Test 159 lm/W

Vero Gen 7:
BXRC-35E10K0-C-73

• CRI: 80
• CCT: 3500 K
• Flux-Typ: 18936 lm
• Efficacy-Typ: 160 lm/W
• Forward (Drive) Current: 1710 mA
• Forward Voltage: 69.4 V
• Power Consumption: 118.7 W

What does this info tell us?
Look at the current draw during tests?
LM/W isnt the whole story, but what wattage draw was the test under.

 

[bassman999]

Looks like (to me) the New Vero is the best efficiency.

 

[Abiqua]

Vero's 3K LER is 321 , so 160 l/w = about 50% eff

Any idea the LER of the Cm22 3k?