Spectral lightmeter Gigahertz-Optik MSC15

Malocan · Jul 8, 2016

JorgeGonzales said:
What are the rest of the holders for

i bought 30* clu058-1825/3000k 80cri and 10* clu058-1825/5000k 80cri at tme.pl ... My friends wife comes from poland so she can order there, they should arive in 4-5weeks

Malocan · Jul 8, 2016

ok finally i finished one lamp, tomorrow i will do 2 footprints. One from 60cm height and 2nd from 30 cm, both without reflector/lens.
In 2-4 weeks i got the bender cob holders for kathod lens. Then i will do some test with the lens

JorgeGonzales · Jul 8, 2016

Very, very nice. I've been looking everywhere for some 2700k 90 CRI 1818s. That 80/20 is such nice looking stuff.

Hey this is a big ask, but is there any way you can compare a 3590 to 1825 at the same wattage? I don't know if that's even possible for you, but it would surely be interesting. Especially with the different numbers from Bobby and robin's tests.

JorgeGonzales · Jul 8, 2016

Oh, here is the digitized data from Citizen's data sheet to compare. Looks like your meter is pretty damned accurate.

Malocan · Jul 9, 2016

JorgeGonzales said:
Very, very nice. I've been looking everywhere for some 2700k 90 CRI 1818s. That 80/20 is such nice looking stuff.

Hey this is a big ask, but is there any way you can compare a 3590 to 1825 at the same wattage? I don't know if that's even possible for you, but it would surely be interesting. Especially with the different numbers from Bobby and robin's tests.

Hi jorge,
i have two ELG-150-C1400b here which i dont use, the test report from this driver says CONSTANT CURRENT REGION:24V-108V
So i could just connect one 1825 to one driver and the cxb to a other driver and then i dimm then to the same wattage. What do you think? should i try it out this way?

JorgeGonzales · Jul 9, 2016

Malocan said:
Hi jorge,
i have two ELG-150-C1400b here which i dont use, the test report from this driver says CONSTANT CURRENT REGION:24V-108V
So i could just connect one 1825 to one driver and the cxb to a other driver and then i dimm then to the same wattage. What do you think? should i try it out this way?

Well, yeah. As long you let everything heat up and temps stabilize, and match watts (preferably on the same heat sink), that is a fair and practical test between two cobs.

OneHitDone · Jul 9, 2016

Roughly what does it cost to build a 20 CXB3590 lamp for a 4x4?

nevergoodenuf · Jul 9, 2016

I am still trying to get clarification on the real difference between the CLU550 and the CLU058. I understand the # of dies is different but the tool is linked to gen 4? And right now all the people I want to talk to are on vacation. I should know more Monday if I have time to call.

JorgeGonzales · Jul 9, 2016

nevergoodenuf said:
I am still trying to get clarification on the real difference between the CLU550 and the CLU058. I understand the # of dies is different but the tool is linked to gen 4? And right now all the people I want to talk to are on vacation. I should know more Monday if I have time to call.

Me too, my friend.

Malocan · Jul 9, 2016

JorgeGonzales said:
Well, yeah. As long you let everything heat up and temps stabilize, and match watts (preferably on the same heat sink), that is a fair and practical test between two cobs.[/QUOTE

i will do tomorrow the tests, today i worked pretty hard. My friend moved to a new home, so we had to work much :-x

Now i need to relax a bit bongsmilie

Malocan · Jul 9, 2016

OneHitDone said:
Roughly what does it cost to build a 20 CXB3590 lamp for a 4x4?

hm i dont know really, but u can search all components in the internet and then you can calculate it.
Nowadays even cheaper then i paid for it.
Two of the cxb 3590 bars which are active cooled, are from my good friend, i did build them for him. In europa we have to pay always more for cree cxb 3590 then the guys in america i think. If i remeber right it cost around 2000euro

Malocan · Jul 10, 2016

@JorgeGonzales
i prepared the stuff for comparing. Now after hooking the ELG-150-C1400b with one cxb 3590 3500k, i noticed it run only with 31watt max. from the wall
The clu058 works normally it use around 78 watt with the driver. I dont know why the cxb 3590 runs only around 31watt :/
So at the moment i can compare them only at 30watt from the wall, what do you think still worth to test or?

JorgeGonzales · Jul 10, 2016

Malocan said:
@JorgeGonzales
i prepared the stuff for comparing. Now after hooking the ELG-150-C1400b with one cxb 3590 3500k, i noticed it run only with 31watt max. from the wall
The clu058 works normally it use around 78 watt with the driver. I dont know why the cxb 3590 runs only around 31watt :/
So at the moment i can compare them only at 30watt from the wall, what do you think still worth to test or?

Might as well, I guess. 31W is not right, though. Did you try switching drivers? The test report is just one driver, but the data sheet says 54V-107V Constant Current range.

Malocan · Jul 10, 2016

JorgeGonzales said:
Did you try switching drivers?

yes with 2 others(same model), still same problem

JorgeGonzales said:
The test report is just one driver, but the data sheet says 54V-107V Constant Current range.

yeah://

Malocan · Jul 10, 2016

OK then i can today only compare 31watt against 31watt, from the wall.
I will do footprints at 60cm*60cm, from 30cm distance, footprint will have 49 measurement points.
Its clu058-1825/ 2700k 90cri vs cxb 3590 /3500k 80cri
Both run passive on the same type of heatsink, i let both light heat up for 40min before i do measurements

JorgeGonzales · Jul 10, 2016

I think one measurement dead center from the same distance should be enough, since both cobs radiate in the same pattern.

Inside a reflective tent the measurements might be sensitive to distance from walls too, so make sure they are placed the same in 3d space...this stuff is hard.

Malocan · Jul 10, 2016

JorgeGonzales said:
I think one measurement dead center from the same distance should be enough, since both cobs radiate in the same pattern.

Inside a reflective tent the measurements might be sensitive to distance from walls too, so make sure they are placed the same in 3d space...this stuff is hard.

Jorge can you make me please a footprint chart like last time, but this time with 7points*7 points
I was not able to edit ur old chart, i dont knwo how to work with excel

Its pretty easy to place the cobs to the same postion, i just need too slide the one heatsink to left and the other too. its pretty accurate with this system i think.

JorgeGonzales · Jul 10, 2016

Malocan said:
Jorge can you make me please a footprint chart like last time, but this time with 7points*7 points
I was not able to edit ur old chart, i dont knwo how to work with excel

Its pretty easy to place the cobs to the same postion, i just need too slide the one heatsink to left and the other too. its pretty accurate with this system i think.

Sure, but probably tomorrow, since I'm on my way out. I barely know how to use Excel by the way, I used google sheets for that and just kind of made it up as I went along.

I think you just need to delete the ppfd column to make 49 measurements, then change the formula in the first column of each row on the footprint chart to be like C3:C9, C10:C16 etc up to 49, then delete all the extra cells to make it 7x7.

Anyway I don't mind doing it as soon as I can.

Malocan · Jul 10, 2016

Here some datas,

guod · Jul 11, 2016

i rotated the Matrix for easier editing (no mtrans function) added max; min and average. also split the screen for better handling.

Spectral lightmeter Gigahertz-Optik MSC15

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