The COB club

Moflow · Jan 24, 2017

Gquebed said:
Ive been 74 to 77... been a bit cold here....lol

Had a cold snap this last few weeks and I ran the cobs at night.
Average temperature lights on was about 22oC - 72f.
Average temperature lights off was about 10oC - 50f.
They grew well regardless of cooler temps.
All chopped down now and drying and looking great!

Bubz23 · Jan 24, 2017

PCXV said:
Nice, are those from clone or seed?

They were from clone!

visajoe1 · Jan 24, 2017

Nicely done @Bubz23 !! Pumped for #2?

Bustos · Jan 24, 2017

Bubz23!!!!

i am waiting on my 6 1825s they are due to be shipped today is what he said...

i want to ask you ... What Driver are you using to get that output on your cobs?

i have really been struggling to get my brain around the drivers and i just seem to be getting greek in reply to my questions....

i think i will be under driven with what i ordered. which is this:
HLG-185H-48A got 3 of them coming and 6 1825 3500Ks want to run 2 cobs to a driver

i am guessing with 2 1825's on it the max output is 100 watts per cob for equivalent of 200 watts per driver for the pair of 1825s.

what driver gets you 160W each???

please let me know

Thanks !
.

PCXV · Jan 24, 2017

Bubz23 said:
They were from clone!

Thanks for the reply. I lve been looking for a legit Pineapple Express clone around Oregon. Love that smoke!

visajoe1 · Jan 24, 2017

Bustos said:
Bubz23!!!!

i am waiting on my 6 1825s they are due to be shipped today is what he said...

i want to ask you ... What Driver are you using to get that output on your cobs?

i have really been struggling to get my brain around the drivers and i just seem to be getting greek in reply to my questions....

i think i will be under driven with what i ordered. which is this:
HLG-185H-48A got 3 of them coming and 6 1825 3500Ks want to run 2 cobs to a driver

i am guessing with 2 1825's on it the max output is 100 watts per cob for equivalent of 200 watts per driver for the pair of 1825s.

what driver gets you 160W each???

please let me know

Thanks !
.

Looks like the 320 series will get you there, but I'm not the best resource for driver selection. I would probably go with the 320-3500 in your setup, but thats just me. How are you wiring them?

Bubz23 · Jan 24, 2017

PCXV said:
Thanks for the reply. I lve been looking for a legit Pineapple Express clone around Oregon. Love that smoke!

Wish I could help you out I am up in Canada !

Bubz23 · Jan 24, 2017

Bustos said:
Bubz23!!!!

i am waiting on my 6 1825s they are due to be shipped today is what he said...

i want to ask you ... What Driver are you using to get that output on your cobs?

i have really been struggling to get my brain around the drivers and i just seem to be getting greek in reply to my questions....

i think i will be under driven with what i ordered. which is this:
HLG-185H-48A got 3 of them coming and 6 1825 3500Ks want to run 2 cobs to a driver

i am guessing with 2 1825's on it the max output is 100 watts per cob for equivalent of 200 watts per driver for the pair of 1825s.

what driver gets you 160W each???

please let me know

Thanks !
.

Hey there!

I am running 6 drivers one for each cob. Mean well hlg 120-48a to achieve running these hard at 160w. The reason for this is as I obtain more cobs I will not have to buy more drivers but will be able to run the cobs way more efficiently.

Closet-Gardenholic · Jan 24, 2017

Soon to be member of the COB club! I've got 6 of these bad boys, heatsinks and driver on the way and three plants ready to go under as soon as it's built!

Bustos · Jan 24, 2017

Bubz23 said:
Hey there!

I am running 6 drivers one for each cob. Mean well hlg 120-48a to achieve running these hard at 160w. The reason for this is as I obtain more cobs I will not have to buy more drivers but will be able to run the cobs way more efficiently.

So with that driver if you add another 1825 the cob drops from 1-150 to 2-75 watts? but can give a more even spread of light avoiding hot spots?

I think i am getting it .... the math of the driver to cob is where i am lost, but i think i know enough now to be happy and let the flowers grow !

nice pics of your plants by the way!

Closet-Gardenholic · Jan 24, 2017

Bustos said:
So with that driver if you add another 1825 the cob drops from 1-150 to 2-75 watts? but can give a more even spread of light avoiding hot spots?

I think i am getting it .... the math of the driver to cob is where i am lost, but i think i know enough now to be happy and let the flowers grow !

nice pics of your plants by the way!

If you are wiring in Series add the total voltage of your chips. For example Vero 29 D bin is a 36 V chip. Since I am runnin 6 this would be ~216 volts.

When you look at your driver specs there will be an output voltage range. Stay within this range and you will be golden.

320 h 1400 b has an output of 114-229v, so this driver would run 6 COBs.

The catch is @1400 ma, a 36v COB is only 50 watts

36 * 1.4 = 50.4

Bustos · Jan 25, 2017

visajoe1 said:
Looks like the 320 series will get you there, but I'm not the best resource for driver selection. I would probably go with the 320-3500 in your setup, but thats just me. How are you wiring them?

thanks visajoe 1
i dont know how to make sense of the charts,
but i ordered 3 of the HLG-185H-48A and i plan to wire 2 of the 1825s in parallel. so i will have 3 sets of 2 1825s .

cant wait to see the effect on the flower patch ....

visajoe1 · Jan 25, 2017

Bustos said:
thanks visajoe 1
i dont know how to make sense of the charts,
but i ordered 3 of the HLG-185H-48A and i plan to wire 2 of the 1825s in parallel. so i will have 3 sets of 2 1825s .

cant wait to see the effect on the flower patch ....

I like it! I think you and your ladies will really like them too :weed:

I have the same driver and run 2 1818's parallel and they rock! So bright its crazy.
Post pics when you get it going!

Bustos · Jan 25, 2017

visajoe1 said:
I like it! I think you and your ladies will really like them too
I have the same driver and run 2 1818's parallel and they rock! So bright its crazy.
Post pics when you get it going!

yeah i have been waiting a long time and they are very near shipping. going to add some lights to a tent that has a 400 watt ceramic metal halide lamp we have some auto flowers growing currently hoping to get some LED on the last few weeks of the session.

Bubz23 · Jan 25, 2017

Bustos said:
So with that driver if you add another 1825 the cob drops from 1-150 to 2-75 watts? but can give a more even spread of light avoiding hot spots?

I think i am getting it .... the math of the driver to cob is where i am lost, but i think i know enough now to be happy and let the flowers grow !

nice pics of your plants by the way!

That is correct!

muleface · Jan 25, 2017

Closet-Gardenholic said:
Soon to be member of the COB club! I've got 6 of these bad boys, heatsinks and driver on the way and three plants ready to go under as soon as it's built!View attachment 3884467 View attachment 3884468 View attachment 3884469 View attachment 3884470

i don't think you will need supplemental light, unless you want to get a t5 uv bulb or something. 350 watts over a 2x3 space is plenty. I love my cobs! Nice looking build

Closet-Gardenholic · Jan 25, 2017

I think I will be all set too!! Might be supplementing C02, not light with this setup! LOL

The Elvis · Jan 25, 2017

Here is mine.. 4 VR29s with mean well HLG 240Hc2100B X2 x4 SSTX heat sinks .. I run at 80%

My cups are painted "industry" standard Chrome.. This alone will increase my GPW by 200% no questions!! LOL

Closet-Gardenholic · Jan 25, 2017

The Elvis said:
Here is mine.. 4 VR29s with mean well HLG 240Hc2100B X2 x4 SSTX heat sinks .. I run at 80% View attachment 3884955

View attachment 3884952
View attachment 3884953
View attachment 3884954

My cups are painted "industry" standard Chrome.. This alone will increase my GPW by 200% no questions!! LOL

View attachment 3884969

Are you pushing 76 volt chips @ 2100? That must be crazy bright! And easy to expand

Mojave · Jan 25, 2017

I'm getting ready to order some cobs myself and am looking at getting 8 Citi 1212's and running them at or near full power. I'd like to have a mixed spectrum for Veg to flower. 3500k is what I see most using, any recommendations? I thought i read somewhere mixing different Kelvin cobs doesn't give full spectrum though? It was more or less adding the 2 together and makes a spectrum in between?

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