Search results

Here is twelve eb gen 2 strips for one lrs350-36. Voltage max is 39,4v and after that u get safe mode and power goes off. I built new supercheap 36x eb gen 2 light and with these drivers you can really push your budget down. I give them 700ma so no need for heatsink and total cost was like 550...

It stays pretty cool no matter what u give between 5-12 volts with 50 watt ledchip. Weight is almost 700g. Maybe 70-80 watts is max what i would give them.

They wont sell outside and its a same thing with TME.EU. I tried that hard with several mails but no. That local sellershit is so unbelievable in 2016.

My first intention was to try out Citizen CLU056 chips but since i couldn't get them i bought dozen of Vero29s and four HLG-240H-C2100 drivers. Heatsink is RAD-A6023 from TME so with 2.1A its 100cm2/W and just a slight air movement keeps it pretty cool.

I'm gonna try far reds too. With that control board and relay you can make it pretty cheap and i like cheap things which can eventually lead to bigger yields.

What voltage they use? Cant wait that data!

Nevergood, what driver you are planning to use with CLU056? I thought im gonna give a try to these LedAnts drivers from Alibaba. They always respond quickly i like that and 45-58VDC 2200mA driver with shipping fees and possible taxes is like 32-34 euros per piece.

I've used light with 200W worth of chinacobs and i think light what comes out of it is not as bright and intense as Cree or Bridgelux would offer. Bud is more airy etc... I would not go all-in with chinacobs.

I will test CLU056-1825C1 at 2200mA. It will be 115W and 44% so nine of these in 5x5 space sounds really good. Heat sink is TME RAD-A6023/1000 and its 100cm2/W passive and PPDF is little over 900. One heat sink will contain three cobs.

If i can build 1035W cob and get 44% efficiency just under 800 euros i think its worth to try. Its not a big deal after that to add couple more if i need more spread to get yields.

I have a discussion going on about 47-57vdc or 95-115vdc 2.2A led driver from Alibaba and my plan is to use 9x CLU056-1825C1-353M2G2 in 5x5 foot space. One 1000x165x35mm TME RAD-A4291 heat sink to three cobs so its like 60cm2/W and its active cooled by maybe two fans cos its 100cm long piece...

Those are like laptop power supplys or chargers. Im thinking why not actually a basic 48V 120W switching psu could not do the job cos they are 10% dimmable up and cheap too.

So you used CLU056-1825C1-353M2G2 specs am i right? They are 37e per chip if you buy 5 or more and i have couple 52V 2.3A powersupplys lying around with no purpose.

Last time i bought these and price was 2,5 euros. They are used heat sinks from HP DL380 G5 server and i removed a cover and just made 57mm hole to it cos i used 60mm fan. It stays pretty cool no matter what u give between 5-12 volts with 50 watt ledchip. Weight is almost 700g.

200W Vero18.

According to this it seems that they really do serious R&D. http://www.led-professional.com/products/leds_led_modules/honglitronic-100w-cob-approved-iesna-lm-80-test

Vero13 is like ~35w max so it would be vero18 if you want ~50watts but afterall a difference is not so huge cos Vero18 is 10,70e and those are 8,45e (if bought more than five). I remembered Vero18 price wrong.

I might even try these http://www.tme.eu/en/details/of-lm004-30b380/white-power-leds-cob/optoflash/ http://en.honglitronic.com/index.php?m=Product&a=pro_detailed&gid=13 It's a somekind of OEM manufacturer and there is good amount of data about these. They look like a Crees chips.

After couple grams i think im gonna double that size and use 140mm fan. Just to have at least some time if fan says goodbye.

Friend gave me a hs and its 5900cm2. Pretty much like a 5.88" profile. I thought that it would be just enough to 300W worth of cobs if i use it with a fan. Do u guys think that im pushing limits here maybe?