Malocan
Well-Known Member
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
Spectral lightmeter Gigahertz-Optik MSC15
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JorgeGonzales
Well-Known Member
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.
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
Well-Known Member
Oh, here is the digitized data from Citizen's data sheet to compare. Looks like your meter is pretty damned accurate.
Malocan
Well-Known Member
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?
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JorgeGonzales
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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
Well-Known Member
Roughly what does it cost to build a 20 CXB3590 lamp for a 4x4?
nevergoodenuf
Well-Known Member
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
Well-Known Member
Me too, my friend.
Malocan
Well-Known Member
i will do tomorrow the tests, today i worked pretty hard. My friend moved to a new home, so we had to work much
Now i need to relax a bit
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Malocan
Well-Known Member
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
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Malocan
Well-Known Member
@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?
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
Well-Known Member
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
Well-Known Member
Malocan
Well-Known Member
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
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
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JorgeGonzales
Well-Known Member
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.
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
Well-Known Member
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.
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JorgeGonzales
Well-Known Member
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.
