SupraSPL

Can you please explain this info, im noob in electonics. Quote "The HLG-185H-C1400 can run 3 CXA3070s on each driver or the HLG-185H-C1050 can run 5 on each driver. "
So for HLG-185H-C1400 can run 3, but how to connect exactly, series? paralel? how to wire them?
same for the other option for 5 cobs.Question, say one connects 3 cobs to an HLG 1400, can one run just one or two cobs if all 3 are not needed ?

Hi Supra. What do you think about this driver , its a bit more expensive then lpc-60-1400 but more efficient?
http://www.tme.eu/ro/Document/136c81d370370ea53dbb53c6b9d5fda3/ACL-CC-60-1400-P.pdf

Hi Supra, can you recomend some 50w,1400mA drivers from Hong Kong based ebay sellers? its less dodgy then china and faster shipping.
Regards from the Balkans.

Hy Supra,

i am a Newbie in DIY an i got a Problem and HansW from Grower.ch told my you are a Specalist in Terms of LED´s. I build my own 9xCree CXA3070 DIY Panel -> here is my Growreport:

https://www.grower.ch/forum/threads/diy-led-panel-459w-9x-cree-cxa3070.78241/

CXB3590's are like dual voice coil subwoofers. Once Digikey gets some, I'll pound them.

Hey Supra,
Did you ever measure/work out the efficiency numbers for CXB3590 CB, below 700mA ?
I imagine something close to 56% at 400mA - 450mA, am I dreaming, or does that sound about right to you?
Thanks again for all the precious data and work !

Hi Supra !
I can't thank you enough for all the precious research and info you have provided our community with. I think I've read just about all your DIY topics/posts, digested most of the knowledge and info, and I'm now ready to plan my first CXB build, not sure wether it will be a 3070 or 3590 build yet.

What's up? It looks like one of the CXA's that didn't really have a good thermal connection with the heat sink is cracked and flaking. Do you put weight on the chips to cure the paste? Is this light safe right now? The circle is not completely lit up. Only about 50% is lit up.

Hey Supra!
Lots of great info. I am a micro grower and I want to switch to some Cree CXB's. I know these only have a viewing angle of 115 degrees but do you think you could recommend a Cree setup for ONE plant in a box of 1'x1.5'x with one foot of growing height, scrog setup? I realize its not ideal but wondering if its possible to keep something like 5 x CXB1512 or 10 x CXB1304 only a few inches from the canopy?

I want to go with your single cob on a 6 inch heat sink with a fan. You stated under 75$ if memory serves correctly. I have found the parts indeed I just need to figure out how it all works and how to put it together. Didn't see you mention a power supply either, how can I get this build started is there a diy on it somewhere? Thx in advance

Time to build some new lights. CXA3590 5K DB for vegging. New drivers HLG-120H-C350B for vegging, HLG-185H-C700B for flowering.

I need some help I have been doing reading through your post and just need some advice, let me know if you can assist. I am a complete noob when it comes to soldering/wiring electronics. I did wire up a homemade grow fixture one day but that was very basic. I want to make something simple to cover a 2x2 veg area. Thx in advance

Hi Supra,

I've been doing a lot of reading and a little dabbling with LEDs. I'm getting ready to order up some of the Luxeon Royal Blue (qty 3) and Deep Red (qty 12) and was wondering what you would recommend for a driver for each.

im looking to do a hans panel style light that i can use in a 3x3. also what would be better, a bunch of vero 10s or the cxa, im looking to have 200-250 watt panel using as few drivers as possible.. something that will veg Fast and keep the plans short a bushy in flower. im only trying to grow one or two plants at a time, thanks in advance.

Love your CXA3070 thread -- I finally read all 134 pages. One of the most on-topic and useful threads I've seen on any site.

Have you made any progress on using 3070's for video lights? I think I remember you saying something about that. I'm thinking about high-CRI lights myself for video, seems like it might be a decent low-cost alternative to pro gear.

i seen that light you recently was checking out that uses cobs. i seen that had 6 cobs drawing 600w so they would be running their cobs at about 90w a piece? i really like what they are doing but figure i could build me a 800w+/- using 16 cob for the same 4x4 area still using less then a 1000hps for less money

if getting the cxa3070 ab what color do you recommend 3000k for flowing and if getting vero29 4000k? thanks again will probably do a thread on icmag after i get most of the supplies to get help with putting everything together.

what you would run them at? plants no taller then 3-4ft
what driver would you recommend to run the most at once given the amp you recommend. thanks again

hello supra really appreciate all the information you are sharing. im interested in building a 2xcob setups for a 4x8 tent. any suggestions. i was thinking maybe running 4 cobs per driver to help with wiring ect. also was thinking about maybe 2x4ft heat sinks per 4x4 each with about 8 cob. this would be for flower only. thank you

Supra I've seen that you got some passive heatsink. I need something like that for 3070. Can you tell me where did you get them from ? I found only in China , but the shipment was 8 times more than the actually product.