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price seems to be out... not sure DK is right though http://www.digikey.com/product-detail/en/bridgelux/BXRC-50C10K1-C-74/976-1479-ND/6152489

I advice you to use this ratio for flowering : 730/660/630/CWhite : 1/4/4/4 replace the 730 with a blue 450 for veg. with Oslon @500mA, your pannel will be more efficient than most Cob diy panel. The rest is easy, chose the current you want to drive them: 350mA, 500mA, or 700mA. On the datasheet...

I am sure about what I said, maybe it changed 3 month ago though... but hey, again, you are free to believe whatever you want, even if they make high margin, your light works ?!:hump: And btw, a member of my family was working in a North-African textil warehouse for Z...RA a long time ago, his...

Hybridway: I don't know your relationship with AMARE, nor how much you love them. But I know one thing, AMARE tech is almost entirely made in China. I know the maker, making led for other brand too, and yes they make UV tube too. True, the quality is high, because China can make as high...

I though I would let a comment regarding how unfair this thread is to the Female Seed work. When I see the pics on the thread I don't think it does justice to any of their seeds. I love C99 from FS, I grew 2 packs of 10 from them, and had about 4 different phenos and some in between. Some are...

He is active on a greek forum, and still come here sometimes... like most, I guess it is boring now. I miss his post too haha this guy just always freaks me in a cool way ;)

This thread become a dinausor museum... LOL

haha that was the good time ;) Vero 13 for me, still rocking btw.

What about Mr flux and his new calculation method for white led ?! he even convinced Supra on this...

I was here a long time ago, reading, reading reading... I feel nostalgia too. At this time no one was selling COB fixtures, or advertising COB led company, no one was talking about them yet anyway... People were trying spectrum, with golden dragons, osram oslon etc... such as SDS in ASTIR grow...

Someone know the mix they use to achieve their spectrum ? I can count about 8 CW : 14 WW : 1 660nm on the indoor spectrum not sure though... I find the spectrum little bit too blue, but it could be corrected by having the 660 on dimmable ballast and changing the ratio along with the flowering...

I don't know what finally happen to this pulsed led test, But I found this: http://www.geocities.ws/sash_elias/files/thesis1.pdf Many thing are interesting in his work such as saying Pulsed light never did better at any frequency than continuous light. But It also sugest there is no difference...

I guess we all react the same way, we are so eager to have a specialised cob that we jump on your product :) but it better be good on paper to convince us to test, and at growing to convince us to buy ;)

Hi, Actually for a 20+years company in semiconductor, I found your datasheets are a little bit mickey mouse ones. Also you said they are outdated while the product is new and not even released I mean, it seems you didn't even finish to create your datasheet but you release the COB. Then you...

Would someone juste say to this guy (superbak3d) to s.f.up with his science and go read a tiny bit of it... This thread is going to be interesting, go grow your babe with R:B and let the open minded people enjoy it. I hate when I can't enjoy a thread because of some saying bs over and over...

Why ultra deep pocket ? SDS already gave the spectra needed for Cannabis, it is a matter of getting the closest possible to the curve and providing enough intensity... The only thing bothering me is efficiency of 405nm led... it is too low to play with them.

Hi, I was wondering if it would be possible to power led directly from a power bridge rectifier, such as this one. Flickering will be at 1/(2x50) or 1/(2x60) depending on where you are, so impossible to detect for us... if one has 220V AC it means he could get a 220x sqrt(2)=311 DC Voltage for...

Seems we are going in a tad different direction ^^ vertical growing ideas in there, go for it guys, I like the way you think ;) If I asked about blue led in cob it is because I wanna talk phosphor losses, Why wouldn't it be possible for us to make custom phosphor coating ? I mean we could have...

Well, for me if one could replicate the closest possible canna absorption spectrum with a high efficiency we would get the first real horticultural light cob for our purpose. We need phosphor !!!

300ppf is huge for a 140W commerical grow lamp... Passive design, and oslon, impressive lamp, how much is retail price ?