My 200W single COB vegie-growtent

l0wbob2016

l0wbob2016

Well-Known Member
So after some time collecting knowledge in my brain i wanted to do something with it.
Since i am a student with low income i have to start low and get more and more equipment over time.

But to start off with something i decided to grow vegies in my kitchen.

Therefore i saved some money and ordered the first parts so i could start.

My equipment so far:
  • Secret Jardin Hydroshoot 80 (80x80x160cm)
  • PH: HM Digital PH-200 | EC/PPM: GHB EC/PPM meter
  • Digital Weather Station with 1 external sensor ( temp & humidity )
  • A small greenhouse for seeds and 10 Eazy-Plug's (7,5x7,5x6cm) for the start, 10 Growbags 11L
  • Canna Terra Seedmix for the seeds, Canna Bio Terra Plus for their final soil, Perlites, a german supersoil as fertilizer solution.
  • For the light i got me 1 Bridgelux Gen 7 Vero 29 3000K 80CRI, that gets cooled passively with a special heatsink. This COB can be turned up to 200W power. Thats because it will be my only light for the moment until i got money for another COB.

For the seeds i had a voting on a other forum and now my first seeds germinating are the following:
  • California Reaper
  • Garlic
  • Jalapeno
  • Tomatoes
  • Paprika
  • Strawberries
  • Rucola

Good part is that the first California Reaper streched its head out of the soil this morning.

( I am going to edit this post with some pictures )

Edit:
20170821_210118.jpg
20170821_210222.jpg

Some Pictures of my COB light:
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and here is the first California Reaper:
20170821_100706.jpg
 
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l0wbob2016

l0wbob2016

Well-Known Member
The quote i got on this was $86 + shipping + import taxes to germany

Running the vero 29 @ 200W without air exchange in the tent for about 3 hours got the passive heatsink to 57,6°C. I took this temp with a laser thermometer.
 
CCCmints

CCCmints

Well-Known Member
The latest data on efficiency I can find for the Vero 29 shows 34.88% efficiency @ 142w. Why did you choose to start this running a COB at 200w? Surely it'd be worth it to save up a bit and run at-least 2 or 3.
 
l0wbob2016

l0wbob2016

Well-Known Member
CCCmints said:
The latest data on efficiency I can find for the Vero 29 shows 34.88% efficiency @ 142w. Why did you choose to start this running a COB at 200w? Surely it'd be worth it to save up a bit and run at-least 2 or 3.
Click to expand...
Like i said in the first post my budget is low atm and my plan was to add 1 more COB with the same heatsink and same spectrum. More COB's to get into my small tent.

But to start with something i only got 1 COB that CAN be driven at 200W but dont have to. :D

It was just for testing reasons why i drove it on 200W

Did some LUX readings today: ( took the Cree multiplicator since i dont know the one for bridgelux. Maybe someone can help me with that. )
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CCCmints

CCCmints

Well-Known Member
l0wbob2016 said:
Like i said in the first post my budget is low atm and my plan was to add 1 more COB with the same heatsink and same spectrum. More COB's to get into my small tent.

But to start with something i only got 1 COB that CAN be driven at 200W but dont have to. :D

It was just for testing reasons why i drove it on 200W

Did some LUX readings today: ( took the Cree multiplicator since i dont know the one for bridgelux. Maybe someone can help me with that. )
View attachment 4000423
Click to expand...
I just don't see a reason to test running it that hard honestly. You won't find any useful data.
 
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