Auto Warriors Do...arty zan. Joints supplied by archie gemil and Dabs with derek..

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Ello Arty. Are cxb 3070 and vero 29s out dated ? what is the lowest one can drive these? i know commonly 1400ma are used but if the price was right ? Do you try to stay with pasive heatsinks? what is the real ideal watt/ sq foot 30/40/50? are lenses really necessary in a small space?

And where is the absolute best diy link for a passive 3590 build?

Regards from Canada
Hi Habitual :)

The CXA3070 were the the forerunner to the CXB3590 and will grow some nice weed, it just that the CXB is a more powerful chip.
My current COB is a CXB3590 with a heatpipe heat sink which is fan cooled so it could fit in my micro cab as it was the best form factor in that space.
I haven't used any CXA3070's and I have only recently dipped my toes in to the Cree COBs so I don't have a answer to what the lowest mA drive is before is turns off.I use a dimmable constant current driver and in the seedling stage was running at 70mA and in veg and flower I bumped it up to the full 1400mA.
I will be doing a lot of reseach to find answer to questions like these but I currently have a lot of behind the scenes work which is keeping me very busy.
When we do get the new LED section up and running there will be a team of HT members looking into different ways we can help members with questions like these.
The average rule of thumb with LED is 25W per square foot but I like to push that higher but over 50 wats per square foot your probably getting to the limit of useable light but that also depends on the efficiency of the diode and how they are run Photons vs heat.
I would like to run passive heat sinks in my next build due to the efficiency of the Cree cobs and we all need a little bit of heat or we be using heater in the winter.
Lenses are very heavy and not cheap, more popular choice are reflectors , in my micro cab i don't have a reflector due to the closeness of my COB to my plant, without a reflector the CXB3590 has a 120 degree spread!

Thanks

arty
 
So, I put these plates around my plants in case any seeds drop, is there any reason NOT to do this (other than Styrofoam being bad for the environment) - yeah, I maybe should have asked before I did it, I'm impulsive.View attachment 613862
as long as you can repurpose it the styrafoam that is a good thing just do not let her hit the landfill
 
Hi Habitual :)

The CXA3070 were the the forerunner to the CXB3590 and will grow some nice weed, it just that the CXB is a more powerful chip.
My current COB is a CXB3590 with a heatpipe heat sink which is fan cooled so it could fit in my micro cab as it was the best form factor in that space.
I haven't used any CXA3070's and I have only recently dipped my toes in to the Cree COBs so I don't have a answer to what the lowest mA drive is before is turns off.I use a dimmable constant current driver and in the seedling stage was running at 70mA and in veg and flower I bumped it up to the full 1400mA.
I will be doing a lot of reseach to find answer to questions like these but I currently have a lot of behind the scenes work which is keeping me very busy.
When we do get the new LED section up and running there will be a team of HT members looking into different ways we can help members with questions like these.
The average rule of thumb with LED is 25W per square foot but I like to push that higher but over 50 wats per square foot your probably getting to the limit of useable light but that also depends on the efficiency of the diode and how they are run Photons vs heat.
I would like to run passive heat sinks in my next build due to the efficiency of the Cree cobs and we all need a little bit of heat or we be using heater in the winter.
Lenses are very heavy and not cheap, more popular choice are reflectors , in my micro cab i don't have a reflector due to the closeness of my COB to my plant, without a reflector the CXB3590 has a 120 degree spread!

Thanks

arty

@arty zan will you build me some COB lights!!!! Cause you are speakin chinesee to me right meow but it sounds real smart with tha lighty things. I only understood like 8 words in that post, the accounting for 6 of them
 
I have one for you @arty zan .. how do you do so much here at AFN and make it look so easy?
Hi Stepside :)

Well that's a very good question lol.

I put in many hours and I am a info freak love look around the interweb and learning new thing and finding out about the latest tech.
I am also self employed so I can do thing here when i need to and then have to work like billy-o to get my work done but i can be kinda flexible as long as the work gets done!
Secondly because I love AFN and it's members, it make it a pleasant and enjoyable experience when you helping out your friends!
Sometime I get tired and the old chat dries up a little then it's time for a pipe/vape and play some music until it's time to hit the hay!

Thanks

arty
 
Hi Habitual :)

The CXA3070 were the the forerunner to the CXB3590 and will grow some nice weed, it just that the CXB is a more powerful chip.
My current COB is a CXB3590 with a heatpipe heat sink which is fan cooled so it could fit in my micro cab as it was the best form factor in that space.
I haven't used any CXA3070's and I have only recently dipped my toes in to the Cree COBs so I don't have a answer to what the lowest mA drive is before is turns off.I use a dimmable constant current driver and in the seedling stage was running at 70mA and in veg and flower I bumped it up to the full 1400mA.
I will be doing a lot of reseach to find answer to questions like these but I currently have a lot of behind the scenes work which is keeping me very busy.
When we do get the new LED section up and running there will be a team of HT members looking into different ways we can help members with questions like these.
The average rule of thumb with LED is 25W per square foot but I like to push that higher but over 50 wats per square foot your probably getting to the limit of useable light but that also depends on the efficiency of the diode and how they are run Photons vs heat.
I would like to run passive heat sinks in my next build due to the efficiency of the Cree cobs and we all need a little bit of heat or we be using heater in the winter.
Lenses are very heavy and not cheap, more popular choice are reflectors , in my micro cab i don't have a reflector due to the closeness of my COB to my plant, without a reflector the CXB3590 has a 120 degree spread!

Thanks

arty
Well that's cleared that up then! :paleo:...possibly!!! :smoking:
 
@arty zan Q.should i have boiled new potato's with my salmon 2nite or roaasted?
images
 
@arty zan Great info hombre . good to know the 3590 can go that low. That's what i was thinking use passive and dimmer to moderate heat. might have to go steal a bunch of street signs for heat sinks lol, kidding.

You deserve more rep than i can give . :cheers:
 
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