Matching Drivers and COBs

S

sleepless_canuck

Well-Known Member
Rocket Soul said:
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
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I did and I love this setup.

Took a day to get heat back down.

I suggest using caution when pushing about 100 watts per cob I start making a lot of heat.

Was up to 87 overnight.

Just so new readers are aware they do make heat.
 
DesertHydro

DesertHydro

Well-Known Member
can anyone help me with converting this blurple panel? it has 4 of these drivers and one smaller one for the 3 fans. its a 300w chip set that pulls about 186 at the wall if that helps any. any help is much appreciated. IMG_1241.JPG
 
DesertHydro

DesertHydro

Well-Known Member
CobKits

CobKits

Well-Known Member
Rocket Soul said:
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
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thats cause hlg185-48a with a single 1825 tops out around 2400 mA due to its 53.5V voltage limit. hlg240h-c2100b tops out around 2100-2300 mA with the dimmer leads open, so as you mention, they should be really similar

that same hlg185-48a can run both cobs at 2100+ and when operated like that is pretty darn close to a 240h-c because the 240h-c generally doesnt use all the voltage available unless you get lucky
 
Mike Cap

Mike Cap

Active Member
CobKits said:
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
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What COB's would you recommend? I also am looking to cut down the build cost, however I would like to have the same performance.
Thanks in advance :)
 
CobKits

CobKits

Well-Known Member
best match i have for the cxbs are the 1818s ($23.40 after RIU discount), which are available in many colors, and the luminus cxm22 ($17.10 after RIU discount), but only in 3000k 80cri (which i recommend and why i picked it when i had to choose from one color to order). luminus not up on site yet (this weekend for sure)
 
bassman999

bassman999

Well-Known Member
CobKits said:
best match i have for the cxbs are the 1818s ($23.40 after RIU discount), which are available in many colors, and the luminus cxm22 ($17.10 after RIU discount), but only in 3000k 80cri (which i recommend and why i picked it when i had to choose from one color to order). luminus not up on site yet (this weekend for sure)
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Someone finally gonna sell Luminus..nice!
Are the cxm 27 any good?
Im only coming up with 131 lm/w with CXM-27-35-80-36-AA00-F2-3
 
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CobKits

CobKits

Well-Known Member
cxm27 tested great but its a goofy size with few holder options. bender and wirth is all there is.

might be my go-to if it wasnt such an oddball size. the cxm22 is great drop in to the citi line i carry

cxm32 is identical dimension to clu058 as well
 
bassman999

bassman999

Well-Known Member
CobKits said:
cxm27 tested great but its a goofy size with few holder options. bender and wirth is all there is.

might be my go-to if it wasnt such an oddball size. the cxm22 is great drop in to the citi line i carry

cxm32 is identical dimension to clu058 as well
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Do you carry the cxm32, or will you?
 
Mike Cap

Mike Cap

Active Member
CobKits said:
best match i have for the cxbs are the 1818s ($23.40 after RIU discount), which are available in many colors, and the luminus cxm22 ($17.10 after RIU discount), but only in 3000k 80cri (which i recommend and why i picked it when i had to choose from one color to order). luminus not up on site yet (this weekend for sure)
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Keep me us informed
 
Mike Cap

Mike Cap

Active Member
CobKits said:
best match i have for the cxbs are the 1818s ($23.40 after RIU discount), which are available in many colors, and the luminus cxm22 ($17.10 after RIU discount), but only in 3000k 80cri (which i recommend and why i picked it when i had to choose from one color to order). luminus not up on site yet (this weekend for sure)
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I looked at the Citizen 1818's on your site and noticed they run most efficiently between 90-150w, however the heat sinks you have only allow for a Max of 75w per sink passively. another thing I also noticed was the citizen holders can only handle a Max of 250v which would be 5 cobs max, am i reading that correctly? what other passive options are there to run these?
Thanks
 
bri77

bri77

Well-Known Member
Mike Cap said:
I looked at the Citizen 1818's on your site and noticed they run most efficiently between 90-150w, however the heat sinks you have only allow for a Max of 75w per sink passively. another thing I also noticed was the citizen holders can only handle a Max of 250v which would be 5 cobs max, am i reading that correctly? what other passive options are there to run these?
Thanks
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90-150w is more of a best-bang-for-your-buck sweet spot. The lower the watt the higher the efficiency all the way down.
 
Fastslappy

Fastslappy

Well-Known Member
bri77 said:
90-150w is more of a best-bang-for-your-buck sweet spot. The lower the watt the higher the efficiency all the way down.
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the new Luminus is best bang 4 buck ,beats the 1818's hands down both in less sink needs, less holders ,less cobs at a lower $$ price for same size cob as well iirc
 
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