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jerry says... China post is no problem if you are agree to afford the risk, I cann't promise the shipping time and when you can get, the leds is high value, if lost, the loss is much higher than the shipping cost. what do you think?

Hi!!!!!! wow another super post at RIU !!!! I'm reading a lot about it and still not sure if the dissipation is a function of the heat sink measures (perimeter x length) or if you have in mind some other factor. I found this http://www.tme.eu/es/details/rad-a4291_1000/disipadores/ heatsink in...

that is what I want, but whit pasive cooling

hello, now that I have clear the cob and drivers, 6xcxb3590cd 3500k. I have a mess with sinks. I would like passive cooling with a 80cm bar (31,5inchs), I don`t have acces to heatskinkusa so would be worth any of these(3cxb3590 @1400mA_50w ea per bar)...

HLG-240H-C2100B could be a good option for 3 x 36v too

then HLG-120H-C1050 would be the most efficient option above HLG-185H-C1050. so can use almost 100x100 driver and can modify it 7.5W to 75W ???? Thank you very much for answering my (stupid) questions as quickly and didactic way !!!!!!!

Thanks for the answer, the HLG-185H-C1400b should not give 1400mA? Why not come to 1200mA? For HLG-185H-C1400B is ok the 143V? or that´s why is better HLG-185H-C1050A? I'm already talking to Jerry and everything goes great, giving me incredible prices as well as facilitating a change of amount...

hi guys, I'm from Spain and is the first time I write in the forum. I'm really impressed with the quality of the content of RIU, and especially this post Supra, the best I've found for my DIY Led Cob. I have some questions, settings a @ 49.7% (2) CXB3590 CD 3500K 72V @ 1.05A (75.5W ea) (1)...