Cree CXA3050 100W Custom LED Grow Journal with Dinafem Blue Widow

JRTokin

JRTokin

Active Member
100$ is cheap for a unit like that seriously im going to look into it, thanks for the tips, just have to work out how to solder etc but i guess that will be on YT

Yeah that grow was a coco grow i did which grew some crazy buds. But i didnt really like the high from smoking these. It was too strong for me and the plants always looked so unhealthy overferted from all the salt buildup in the medium. I really didnt have it dialled in. Ive since switched to using teas and mixing up my own soil. Its so much cheaper. I know this may sound crazy but i really feel that weed grown with teas is so much cleaner, burns and tastes better. but we eat organic veg as well and are very health conscious so its more a lifestyle choice. I was blown away by how much healthier plants are when growing organically.
 
FranJan

FranJan

Well-Known Member
http://ledsmagazine.com/news/10/10/16

"Cree CXA3590 and CXA3070

Cree has now upgraded its 23-mm family with the CXA3070 LED extending the performance range to 11,000 lm at 85° operating temperature. SSL manufacturers that used the prior CXA3050 LED can drop the new family member into existing designs with little or no change required and deliver higher-performance products."

Jeeze BB I was gonna sub but your light is soooo last week :). Just joking, I think it's great you're growing with CREE COBs and now you've got a panel that you probably can upgrade pretty easy. Another great reason for growing with COBs but it's gotta piss you off a little bit when ya see something like that. I mean ya just got the sucker and then they upgrade the line. Fuckers. LOL Same thing happened to PICO with the B-Lux line he uses. Guess it's best to wait for a product line to mature, but as long as it flowers, that means it works as good as anything. Best of Luck with your grow and Be Safe!
 
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bbspills

Well-Known Member
Actually, I only wanted a max of 100W, so the CXA3070 wouldn't benefit me.

There is a bigger beast as well which is the CXA3590, which can put out 18000 lumens.
 
eyes13

eyes13

Active Member
Joined this particular forum to see your pics, subbed. This is the direction I'm taking my growing, saving up to build a ~400w grid based on the Cree lineup. I have a years-old 120w red/blue/uv panel that got me into the LED world, and truly it's been great but it simply isn't enough. Biggest thing I noticed while running it was the lack of penetration... (compared to HPS) Any word if that changes at all with the 2700k's? Not every strain likes being under a screen, so a flat canopy isn't always possible. I'd like to no-compromise replace a big HID with a handful of these!! I've found my LED buds to be considerably more resinous (and less notably, more flavorful!) than under HPS, at a slight decrease in overall density. Can't wait to see where the technology takes us.

-Eyes
 
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bbspills

Well-Known Member
Start of day 18 of 12/12. She's still stretching a tad, but it's becoming minimal and the buds are starting to fill out more, so I expect it to not get much taller by now.

She's flowering fast and these mini cola's should all fill in really nice. Starting to see trichs on the leaves :-)


44_IMG_20131103_165817_407.jpg
 
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bbspills

Well-Known Member
Lol. I'll get more pics up when they start to really fill out.

For now it's just an update a couple times a week.

Are there any types of pics you would like?
 
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bbspills

Well-Known Member
By the way, there are 17 branches in that pic above. Should be a good yield. Lets say I average 5-7 grams per branch, that could equate to around 85-120 grams total under 100W of light.

My previous best in this grow box under my ds100 was 90g from a Jack Flash #5 and this bad boy looks much more filled out then that previous grow.

Here's a pic from that 90g grow. Notice how much screen space is still available and with my current grow, I've used up nearly the entire space with all long running mini-colas.

2013-01-28_12-43-03_652.jpg
 
JRTokin

JRTokin

Active Member
Yep its all about the gs per watt :-o but i also saw on one video on YT some guy claiming the buds are actually higher THC than under hps. Hmm maybe then not only do you get more bud for less energy but also more potent bud = more efficient at getting us stoned. Any thoughts?
 
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bbspills

Well-Known Member
JRTokin said:
Yep its all about the gs per watt :-o but i also saw on one video on YT some guy claiming the buds are actually higher THC than under hps. Hmm maybe then not only do you get more bud for less energy but also more potent bud = more efficient at getting us stoned. Any thoughts?
Click to expand...
I think this is due to the lack of UV from HPS, hence why I supplement UV throughout flowering.
 
eyes13

eyes13

Active Member
bbspills said:
I think this is due to the lack of UV from HPS, hence why I supplement UV throughout flowering.
Click to expand...
That's been my understanding from lab write-ups on the matter... Trichomes are a UV-defense mechanism. Without a lamp producing that, less of the plant's energy goes directly to resin production; MORE bud, but less of it is trichs by %. A panel that can replicate sufficient UV and combine that with an accurate color index should, in theory, solve both problems with one lamp.
 
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samitch26

Member
I built a similar light using cxa 2530 3500k and from start to finish it was a great light
I bought the meanwell 42v 320 watt power supply and then used the meanwell pucks
at 700ma even though the leds are rated at 800ma. I was able to hook up 11 crees to one
power supply . I used thermally conducting glue and put 2 to 3 leds on a 4 foot by 1 " by 1/2 inch aluminum bars and no fans were needed. The entire frame becomes a giant heatsink. It works great just a lot of aluminum. I am now working out an even better design to create more surgface area in the frame.
 
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Checkit71

Active Member
Has anyone tried making a fixture with those new cxa3590's? Since I am definitely looking at making one for the new year.
Bb you definitely make me want to make my own fixtures, hell I signed up on this forum just to follow this.
 
coolbreez1

coolbreez1

Well-Known Member
I think there are many people including my self that signed up on this forum specifically because they are interested in cree LED grows, my self included.

I have been researching many different build possibilities with the cree LEDs. The problem I have run into in relationship to the 3590s is not being able to find drivers that run at 77 volts. I don't know enough of the specifics to know if they will effectively run at a lower voltage.

I have been leaning towards something like samitch's build for this reason. It seems the meanwell power supplies and led drivers for the cxa2500 series are readily available, reliable and reasonable priced. Meanwell also just came out with LDD-1500 series pucks, which seem like they could handle the 3000 series better, but they are not actively on market yet from what I can tell.
 
coolbreez1

coolbreez1

Well-Known Member
I think the ANP151-110P-277 would be pretty ideal, but I have yet to take my DC electronics classes :). It looks like it is a very new product I am not seeing any pricing information, I am not sure if it is purchasable yet. I think the big obsticle is likely cost,
you would need one powersupply per cxa3590, this would likely add up quickly, and you would likely want 2-4 of these babies depending on what you are wanting.

This is the other reason I have been leaning towards using the cxa2500 series of lights, because you can get one high powered cv/cc powersupplys and then use pucks to regulate the power for each light. The other issue is heat dissipation, the 3590 would need a much higher quality heat sink to dissipate the cincentrated heat output. Several cxa2500 series could put out the same light but with more heat dispersion it would be easier to cool. Although those power supplies to have option 12v outs that are likely intended to run fans, so CPU heats know could be a cheep option. It really comes down to how much those drivers cost IMO.

P.s. - I have yet to build anything with these cree cxa series lights, I have just been researching the hell of of it.

P.p.s. - another consideration is part sourcing,being able to get all the parts from one supplier would likely qualify for free shipping do to the large order size, buying from several sources the shipping will likely add up quickly.
 
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Checkit71

Active Member
Yeah I've also been researching the hell out of this whole thing, worse comes to worse im leaning towards the cxa3050. I was planning on using a gtx pro gpu heat sink since most of them have fans built on.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835186042

Got the idea from youtube, a guy was using 100w leds for his aquarium and was using a gpu heatsink since they are meant for such high heat

Also your right i want to do at least 2 panels making them 300watts each
 
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