...All Things Vero...

nevergoodenuf said:

@benchfrooser - I don't see any reason to mix spectrums, it isn't like you are using monos. If you like tall stretchy plants, go with 4000k or 3500k, but if you are running bushes 3500k to 3000k. The extra blue may help slow down stretch in so plants.

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I think that's backwards. 4000k has more blue than 3000k. So bushes would be more likely to grow under 4000k. Mixing spectrums with the cobs spread out doesnt really blend much. But clustered together they seem to do alright. Also vegging with 3000k still makes pretty bushy plants. Not much stretch with any of the white cobs. 3000k veg.


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Fixed it, I just worded it wrong.

I like to mix spectrums and COB companies, but I am perpetual hack and always runnning and crossing for diversity and always find interesting things under different spectrums.....thats another reason why I really like COB growing and never really understood those resistant to the switch.

I wanna only use the 4k in vegi. For flowering I wanna add the 2.7k. The reason is to have a panal, which is good in vegi and flowering.

benchfrooser said:

I wanna only use the 4k in vegi. For flowering I wanna add the 2.7k. The reason is to have a panal, which is good in vegi and flowering.

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Bonjour
3500ºk is the best way to go imo...
If you want good results in vegg and bloom go for it!
CU

Abiqua said:

I like to mix spectrums and COB companies, but I am perpetual hack and always runnning and crossing for diversity and always find interesting things under different spectrums.....thats another reason why I really like COB growing and never really understood those resistant to the switch.

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3 X Cree cxa3070 ab 3000k, 2 X Cree cxb2530 93cri 3000k, 4 X Vero 18 4000k.


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littlejacob said:

Bonjour
3500ºk is the best way to go imo...
If you want good results in vegg and bloom go for it!
CU

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Veros 4000k are better I think for all around. Have pretty much all the red and more blue than the 3500k.


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Quick question, Would you rather have 10 vero 18s at 700 or 5 29s at 1050? hlg-185 driver

kmog33 said:

3 X Cree cxa3070 ab 3000k, 2 X Cree cxb2530 93cri 3000k, 4 X Vero 18 4000k.


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Is that a lid from a tote for your reflector? Or did you salvage it from something else?

bicit said:

Is that a lid from a tote for your reflector? Or did you salvage it from something else?

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It was a ti smart lamp pro bloom 600.

Now it's ~220 watts of cobs. It's actually dimmable from 200-280 watts @ 525-1150ma it's just dimmed almost all the way down ATM.


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ItsIntheGenectics said:

Quick question, Would you rather have 10 vero 18s at 700 or 5 29s at 1050? hlg-185 driver

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Tough to answer the question because its all over the place...if budget is the 1st concern, then 5x is the obvious 1st! Because at the same price essentially, the V29's are just as efficient or close or whatever [sorry been a while since I took an "Official Look" at the datasheet"]


But if we are just talking about room layout aka spread, well the variables can be all over place, hence my 1st scrapped post

Ok. So I took apart one of my China led lights and I have three drivers rated 70-90vdc 500-560ma. I'm thinking of building a seedling/ micro green light out of some Vero 10s or Vero 13s using these drivers. This will be my first attempt at diy cob. Any one have any ideas? Also am I correct in thinking I could almost run 3 Vero 18s off each driver? Still trying to Figure out this diy cob stuff before attempting to order parts and build a flowering light. Thanks

Abiqua said:

Tough to answer the question because its all over the place...if budget is the 1st concern, then 5x is the obvious 1st! Because at the same price essentially, the V29's are just as efficient or close or whatever [sorry been a while since I took an "Official Look" at the datasheet"]


But if we are just talking about room layout aka spread, well the variables can be all over place, hence my 1st scrapped post

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Or 6 of the Vero 18s at 1050ma.


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bobbuck said:

Ok. So I took apart one of my China led lights and I have three drivers rated 70-90vdc 500-560ma. I'm thinking of building a seedling/ micro green light out of some Vero 10s or Vero 13s using these drivers. This will be my first attempt at diy cob. Any one have any ideas? Also am I correct in thinking I could almost run 3 Vero 18s off each driver? Still trying to Figure out this diy cob stuff before attempting to order parts and build a flowering light. Thanks

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You could run 3 Vero 18s on those drivers.


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kmog33 said:

Or 6 of the Vero 18s at 1050ma.


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or two 29's and 4x V18's....but we all could play the variable game all day...thats why I asked first...

Abiqua said:

or two 29's and 4x V18's....but we all could play the variable game all day...thats why I asked first...

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That's how I run that driver except 2 3070s 3000k and 4 Vero 18s 4000k

It just forces more current through the lower voltage cobs as far as I have read. Which may or may not be what you're tying to do lol.


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Also if budget is a concern 6 Vero18s would be cheaper than 4 18s and 2 29s by $26-28 before tax and shipping on digikey and I think larger margins elsewhere.

The v22s have close to the same efficiency of the Vero 29s and are $10 cheaper also if budget was a concern.


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Abiqua said:

or two 29's and 4x V18's....but we all could play the variable game all day...thats why I asked first...

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Actually, thinking about it, I don't think that is a working arrangement on that driver with the new versions as the Vero 29s are closer to 38v than 36 which would push you over the meanwells voltage limit. And it's supposed to be a hard limit according to supra. The a version is also supposed to be closer to 1150 ma at the top end than 1050.

Checked and at 1050 the Vero 29s are 36.4-38.2v and the 18s running at 1050 are 29.5-31v. So that arrangement would definitely put you over the max current of that driver.


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Thanks for the input. 3 Vero 18 @ 500ma is around 85v so I think that's where im headed for my first diy to play around with. I like "hacked" light in your picture. What are the dimensions of the unit you used?

bobbuck said:

Thanks for the input. 3 Vero 18 @ 500ma is around 85v so I think that's where im headed for my first diy to play around with. I like "hacked" light in your picture. What are the dimensions of the unit you used?

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The heatsink on mine is 8"x9"X1.86" and I've got 9 cobs on it now lol. The entire fixture is about 12"x12". I built a 3 cob unit with an aquarium fixture I had that makes more sense with the 3 light arrangement.


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