Cree cob build.. help please

[AquariusPanta]

http://www.led-tech.de/en/Chip-On-Board-Technic/Bridgelux-c_134_210.html

^^^^^^^^^^^^^ I can vouch for this company....really impressed.

Not sure if that is what you are after?

The COBs seem expensive...

 

[Chronikool]

The COBs seem expensive...

Better then paying customs....

 

[FranJan]

3 pages and none of you smart mothertruckers suggested Lumitronix ? That's Nichia country folks .
http://www.leds.de/en/High-Power-LEDs/Chip-On-Board-LEDs/
http://www.leds.de/en/High-Power-LEDs/Nichia-High-Power-LEDs/
http://www.leds.de/en/High-Power-LEDs/Chip-On-Board-LEDs/Nichia-Chip-on-Board-Modul-NCSLJ216A-3870lm-warmwhite.html

 

[AquariusPanta]

Better then paying customs....

I'm foreign to customs

 

[SupraSPL]

According to this data sheet they are not performing too well compared to the leaders. A quick calculation shows their cool white 70CRi to be about 38% efficient at 25C (130lm/W) and cost about $2.85/PAR W. -5% at 50C
http://www.leds.de/out/media/NSCLJ216A-E.pdf

But always good to keep an eye out for the next Vero/CXA contender.

 

[robbah99]

The language is turned to italian but you still pay the customs as the supplier is at US. THe just have the language of many countries, I think so.... Did you see that the have a European warehouse?

They will ship from their warehouse in germany if the receiver is a company with a VAT number, that I know.
Not sure about ordinary EU citizens. I have sent them an email asking... I will get back with the answer.

 

[Mandragoras]

the prices are a bit oversized, or is it my idea?

 

[churchhaze]

Maybe they'll update their datasheets soon to increase efficiency! Everyone loves a good datasheet update to make their diodes better!

According to this data sheet they are not performing too well compared to the leaders. A quick calculation shows their cool white 70CRi to be about 38% efficient at 25C (130lm/W) and cost about $2.85/PAR W. -5% at 50C
http://www.leds.de/out/media/NSCLJ216A-E.pdf

But always good to keep an eye out for the next Vero/CXA contender.

 

[guod]

COBaCabana in the EU

Cree CXA1304 warmwhite
High CRI; BIN Y9; 3000K
CXA1304-0000-000C0Y9230H
Price: 5,90€

Cree CXA3070 warmwhite
BIN Z4; 3000K
CXA3070-0000-000N00Z430H
Price: 39,90€

Cree CXA3590 warmwhite
High CRI; BIN Z4; 3000K
CXA3590-0000-000R0YZ430H
Price: 54,90€

just the best offer
and sorry NoVero

 

[stardustsailor]

COBaCabana in the EU

Cree CXA1304 warmwhite
High CRI; BIN Y9; 3000K
CXA1304-0000-000C0Y9230H
Price: 5,90€

Cree CXA3070 warmwhite
BIN Z4; 3000K
CXA3070-0000-000N00Z430H
Price: 39,90€

Cree CXA3590 warmwhite
High CRI; BIN Z4; 3000K
CXA3590-0000-000R0YZ430H
Price: 54,90€

just the best offer
and sorry NoVero

Easier to find than the CXA,in EU
and cheaper ..




....
If of course one knows , where to look for 'em....

Cheers.

 

[guod]

killer price
Save Our Souls

Farnell/HBE.de call up 76,01 €

 

[stardustsailor]

Yeap....

 

[stardustsailor]

killer price
Save Our Souls

Farnell/HBE.de call up 76,01 €

 

[robbah99]

They will ship from their warehouse in germany if the receiver is a company with a VAT number, that I know.
Not sure about ordinary EU citizens. I have sent them an email asking... I will get back with the answer.

Got an answer. They ship from the U.S to private buyers, so Digi-Key is not optimal for EU price-wise.

 

[SupraSPL]

Maybe they'll update their datasheets soon to increase efficiency! Everyone loves a good datasheet update to make their diodes better!

Fixing an error in the datasheet may not improve efficiency but a price drop of 20% sure did make a mark

 

[Mandragoras]

View attachment 3297704

hey, where do you order these from?