Help with diy cob build

S

Swetlana

Active Member
Hello there! New member here. I´m looking for some help with a diy led fixture for a 1.2x1.2m grow tent
(~4x4sqft)
I would like to replace my old 300-660w hps with the most efficient veg-bloom led build I can afford.. Budget is about 600€.
My plan is to buy 12 cobs and 4 drivers and build 3-4 fixtures and use passiv heat sinks. Each cob would run at 50-60W. So 600-720W. Should do right?

What cobs are the best value for the money?. Also should I use mix spectrum or is 3500k a good choice for all around grow?

Thanks!
 
Last edited:
Airwalker16

Airwalker16

Well-Known Member
Everyone's tired of answering this over and over and over again. Use the search tool and find some info out.
All us Experienced LED DIY'ers had to read through hundreds if not thousands of pages of this site to get where we are.
 
GBAUTO

GBAUTO

Well-Known Member
Plenty of info regarding what to look for and where. Your power density should give you more than enough light when used with most current tech diodes. I think that either boards or light strips give the best value and uniformity-have a look at those as an option.
 
S

Swetlana

Active Member
Cxm22 3500 mix with 80-90cri all the way then.
I've done my research. Just wantes to discuss my options a bit More. Sry to bother you guys.
Laters
 
Rocket Soul

Rocket Soul

Well-Known Member
Airwalker16 said:
Everyone's tired of answering this over and over and over again. Use the search tool and find some info out.
All us Experienced LED DIY'ers had to read through hundreds if not thousands of pages of this site to get where we are.
Click to expand...
If you are so tired of answering this question why are you the first on every thread like this saying that "nah, i cant be bothered with this question" ??

Swetlana said:
Hello there! New member here. I´m looking for some help with a diy led fixture for a 1.2x1.2m grow tent
(~4x4sqft)
I would like to replace my old 300-660w hps with the most efficient veg-bloom led build I can afford.. Budget is about 600€.
My plan is to buy 12 cobs and 4 drivers and build 3-4 fixtures and use passiv heat sinks. Each cob would run at 50-60W. So 600-720W. Should do right?

What cobs are the best value for the money?. Also should I use mix spectrum or is 3500k a good choice for all around grow?

Thanks!
Click to expand...
If youre in EU: try searching for the zeus-308 on www.led-tech.de
Its a board solution that will probably be easier and cheaper to build than 12 cobs (50e for heatsink, cob, holder and powersupply is hard to find).
Id recommend 4 boards on a 480w or even 600w powersupply.
This would be another worthy alternative:
https://flowerpowerbologna.it/growshop-headshop-seedshop/project-342/
Youd need the same amount of power.
 
Renfro

Renfro

Well-Known Member
Airwalker16 said:
Everyone's tired of answering this over and over and over again. Use the search tool and find some info out.
All us Experienced LED DIY'ers had to read through hundreds if not thousands of pages of this site to get where we are.
Click to expand...
Sounds like someone had a bad day. lol Like gosh man, if you don't wanna help just go to another thread. If people didn't ask the same shit over and over this site would be dead. Smoke a bowl and smile, life is good.
 
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