Introducing CobKits.com - specializing in DIY and Citizen COBs

Rocket Soul

Well-Known Member
Is that for citi or cobkits? I know tme does poland, but no luck for here in spain. Personally i really like the 1825 light engine if it can be run at 100w it would be a dream, but optics-diffuser and driver options for that might be tricky
 

JorgeGonzales

Well-Known Member
Is that for citi or cobkits? I know tme does poland, but no luck for here in spain. Personally i really like the 1825 light engine if it can be run at 100w it would be a dream, but optics-diffuser and driver options for that might be tricky
Not tricky, and it can easily handle 100W. An HLG-240H-2100 is all you need for a pair of them, running at ~110W each.

Cooler specs here: http://www.led-heatsink.com/upload/files/IceLED_Ultra_Modular_Active_Star_LED_Cooler_ø99mm.pdf
 
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CobKits

Well-Known Member
updated stock on all chips

1818 90CRI in all colors except 3500k
1818 80CRI in 3000 and 3500k (and just a few 4000K)
1212 80CRI 3500K in stock, also in 6500K for you veggies out there
1825 80CRI now has 3000K and 3500K in stock
1825 90CRI now has 3500K and 4000K in stock (in addition to 2700K and 3000K)

added precut pads for all chips by request
added cxb3070 (only 5 left)

also check out the 1825 90 cri link above, i added holder and reflector options which are a popular way to purchase as ive seen on ebay. will eventually propagate that through all listings. feedback welcome
 
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Airwalker16

Well-Known Member
sure find me a real datsheet on GT-3838 with nominal flux at a standard current, and flux vs current curve and ill consider it
They have the data sheets on those pages. @Trippyness did a lot of looking Into these already once on the other thread you're posting on. "Cob companis other than CREE or BridgeLux"
 

CobKits

Well-Known Member
ok here goes, looking at 70CRI 4000K.

from
http://www.gmelectronic.eu/img/cache/doc/518/303/led-169w-white-25350lm-120a-gt-cob3838w426480169150-datasheet-1.pdf

117W chip: 155 mean lm/W @117W
169W chip: 155 mean lm/W @169W

$24 citi 1818:155 lm/W @ 117W, 143 lm/W@ 169W
$42 citi 1825:172 lm/W @ 117W, 161 lm/W@ 169W, 155 lm/W @ 206W
$60 citi 3618 173 lm/W @ 117W, 164 lm/W@ 169W, 155 lm/W @ 237W

the 117W getians at $14 FOB china a re a good but not ridiculous deal
the 169W for that price would be
 

Airwalker16

Well-Known Member
ok here goes, looking at 70CRI 4000K.

from
http://www.gmelectronic.eu/img/cache/doc/518/303/led-169w-white-25350lm-120a-gt-cob3838w426480169150-datasheet-1.pdf

117W chip: 155 mean lm/W @117W
169W chip: 155 mean lm/W @169W

$24 citi 1818:155 lm/W @ 117W, 143 lm/W@ 169W
$42 citi 1825:172 lm/W @ 117W, 161 lm/W@ 169W, 155 lm/W @ 206W
$60 citi 3618 173 lm/W @ 117W, 164 lm/W@ 169W, 155 lm/W @ 237W

the 117W getians at $14 FOB china a re a good but not ridiculous deal
the 169W for that price would be
The 30w 2828s are what I want. Theyre fuckin $4.50...
 

welight

Well-Known Member
$25 to ship two of those xpg strips to the US?

Woooof.

Those strips are my new obsession. Great spread, no sacrifice in efficiency, no reflow soldering, no holders.
guys $25 AUD approx USD18, that DHL 2 day delivery
Cheers
Mark
 

Michiganjesse

Well-Known Member
no need to be cryptical, link it up so people can take advantage. Mine are $40 after RIU discount btw....i may discount them more we'll see. i dont have many cree left and are prob moving away from them, stocked for convenience more than anything and selling them close to cost (which was more than $33). good to see the crees coming down in price though...competition benefits us all
I know nothing about building a light how hard is it and for a 5x5 area 5 or 6 small plants 3ft or so what kit would you recommend i liked your response to yours cost more I'm in construction own my own business people tell me the other guy is cheaper i say go for it. I give the best price i can everytime. If you find a better deal i don't blame you or get mad there is plenty for everyone
 
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