In my opinion the CXB3590 are too expensive. I just made some lights with Samsung's LC080D COBs it has the same lumen output as the CXB3590 at 20W less power and 1/4 of the price. So for whatever your budget is you could buy 4 times the COBs, driving each one more efficiently making them even more e...

I dont understand why it's so hard to buy a couple of chips off a place that had them. Like they have em in stock I'm happy to pay a little more per chip but they straight up will not sell me any unless I buy 250 or 500 or whatever. No matter how much I offered to pay they would not sell me 10 of th...

Ah bugger I'm in Sydney that could have been really easy haha. If I could I would man but it was a effort and a half getting the 10 I got. I emailed every single surplyer I could find even the ones on page 80 of the Google serch that aren't even in English any more. Pretty much no one gave me the ti...

What characteristics would you be measuring? And what would you use to measure it? Is it something I could try and do? I understand electronics quite well and can probably get a light intensity meter from work for a day (not sure on its unit of measurement or accuracy though) or does it need a parti...

Its getting 170lm/W because I backed em off from 1.6A to 1.23A. And that's what I'm saying I can't find anyone who has tested them maybe they are better than the luminous devices ones. Samsung seem to have gone above and beyond with efficiency in their other diodes why is 170 so surprising? I think ...

I Just finished making my first COB Lights. and thought id share what i did because I couldn't find anyone else who had used Samsung COBs. if there is a reason why no one else uses them i still haven't figured out why haha. so this is my part list.. 10 x Samsung (LC080D) COBs: $170 2 x Meanwell PSU ...