Recent content by diggsta

So I glued the second COB onto the second sink. Now it's probably a little brighter than before, and with the fan it's just cool enough to touch. After half a minute or so it becomes unpleasant, but not impossible. My only means of measuring temperature is a oven thermometer, which shows ~50°C...

please, one last question for today: Would you recommend a 4000k cob together with my existing 3000k cob, or should I buy another 3000k? I grow autoflowers atm...

Thanks a lot! I almost thought so (to put them in parallel), so that means I can still use the lpc driver. I heard that there are disadvantages of using them in parallel, like irregularities in the current leading to a shorter life span. Oh well, it's not all optimal anyway. I already have a pc...

The cob. It's on a copper cpu heatsink which weighs maybe 800g and has 45 fins on it... But it gets too hot to touch in a minute. It's already glued on so I'd rather keep it there and not break it off, and use the second same heatsink for another cob, which should reduce the heat-wattage per cob...

Hey, thanks for all the answers... I used some other account of mine to post the last post, sry about that and spamming you with questions ;) I now assembled the cxa3590 with a cpu heatsink and a lpc-150-1400 and of course it gets much too warm. What would happen if I put a second cxa3590 in...

yea, it seems more difficult to understand though...

really thinking about 2x cxb3590 now... would this hlg-185h-c1050a be an efficient driver for the 2? or this HLG-120H-C1400A or this HLG-120H-C1050A? I'd like to be a little flexible when it comes to light versus efficiency. and do i need the 36 or the 72v then?! Is it right to say that both...

damn.. its already on the way and from china it will cost customs and take a month. always those hard decisions:???:

thank you. then I guess I'll just stick to the cxa for now. 51$ is just a few bucks less than I paid, and if efficiency didn't rise by more than 10%, i can live with that. also I can't wait to build the thing! ;)

thanks for the prompt answer! It cleared up almost everything for me :) much appreciated :) so I just looked for the cxb3590 and couldn't find many in germany. the ones i found were 10 EUR more expensive, or even 25 EUR more (80 EUR). I already paid 55 EUR (which would be ~0,5 EUR/w running at...

Hello, I've been following this thread and others dealing with the 3590 chip and would like to ask something, but maybe it's the wrong thread... Looks like a couple subthreads are already open, but if not, please give me a hint and/or shift it to the proper thread... Anyway, great info here and...

Can someone clarify this ejmix ratio for me please? Does 1:1 mean 1 g ejmix per 1 g oil? Because if it's ml I can't measure the oil. I can weigh the ejmix of course.