2x2 Tent Setup

[Nutria]

Btw, why don't you get a Atreum 288.2 and a hlg-120h-54?
There would be plenty light for a 2x2

You could get a a hlg-240 from the start and just add one more board when you upgrade to 4x2

 

[dancingshrubbery]

I'm in Europe so importing from American pre-made manufacturers is going to be expensive.

 

[Nutria]

I'm in Europe so importing from American pre-made manufacturers is going to be expensive.

where are you buying Vero from?

 

[dancingshrubbery]

I would buy them from Digikey. I believe they have european warehouses.
I can see that I can get the samsung led strips from avnet, who also have european warehouses.

 

[Nutria]

I would buy them from Digikey. I believe they have european warehouses.
I can see that I can get the samsung led strips from avnet, who also have european warehouses.

both digikey and arrow only ship from US
Avnet is B2B
look at tme.eu

I am from eu too and bought from export-estonia (ebay store). They also sell TCI linear strips for a budget build

 

[dancingshrubbery]

Huh, my bad.

 

[dancingshrubbery]

So currently I'm investigating kits. And I find it really hard to compare the Atreum 288.2 vs HLG 138, and then something like this COB light from china https://www.aliexpress.com/store/product/Dimmable-Full-Spectrum-COB-LED-Grow-Light-CREE-CXB3590-200W-26000LM-HPS-400W-Growing-Lamp-Indoor/1455038_32850549587.html?spm=2114.12010612.8148356.1.1b924c0cixL1o9

The Atreum is only the board, and I can't find euro resellers for it.

Edit: I know the China light can produce some serious grow, but there is no PPFD comparison for it. I found it through this guy's diary https://growdiaries.com/diaries/16973-green-crack-lst

 

[Nutria]

So currently I'm investigating kits. And I find it really hard to compare the Atreum 288.2 vs HLG 138, and then something like this COB light from china https://www.aliexpress.com/store/product/Dimmable-Full-Spectrum-COB-LED-Grow-Light-CREE-CXB3590-200W-26000LM-HPS-400W-Growing-Lamp-Indoor/1455038_32850549587.html?spm=2114.12010612.8148356.1.1b924c0cixL1o9

The Atreum is only the board, and I can't find euro resellers for it.

Edit: I know the China light can produce some serious grow, but there is no PPFD comparison for it. I found it through this guy's diary https://growdiaries.com/diaries/16973-green-crack-lst

nah that china light is just trash.
Atreum(there's also the heatsink) and HLG boards are made the same, equal lights. Atreum should be US based only while @diyled is a official HLG distributor in EU at www.diyleduk.co.uk.

 

[dancingshrubbery]

Hm, okay. I think I am set on the HLG Quantum 288.2 board. I'm considering getting 2 and then powering them with a HLG-120H-c2100. Is this vast overkill, or is it not such a bad idea?

I am still perplexed that Migro 100, for example, gets a similar PPFD output, using a single COB though.

 

[dancingshrubbery]

I opted for 2 or 3 of the Samsung H-inFlux LM301B instead with a HLG-120H-48a or HLG-185H-48a respectively as it will be cheaper than buying the HLG pre-built board.

Now I am just looking for a European seller of the Samsung H-inFlux LM301B strip. (https://www.diyleduk.co.uk/product-page/samsung-h-influx-lm301b-light-engine only ships to UK apparently).

 

[Nutria]

Write him an email. He s also active in this forum.

 

[ZioFrancolino]

Also check this in Europe https://www.led-tech.de/de/ZEUS-308-XT-High-Performance-KIT-3500k

and this https://www.led-tech.de/de/CREE-CXB3590-3500K

 

[dancingshrubbery]

Also check this in Europe https://www.led-tech.de/de/ZEUS-308-XT-High-Performance-KIT-3500k

and this https://www.led-tech.de/de/CREE-CXB3590-3500K

That's a very nice site, thanks! It even looks like I can run that Zeus 308 XT without a heatsink.

 

[ZioFrancolino]

That's a very nice site, thanks! It even looks like I can run that Zeus 308 XT without a heatsink.

https://www.led-tech.de/en/Horticulture-Grow-QC first one is the complete kit

 

[dancingshrubbery]

So these are all based on the Samsung 301B LED's. How would this board or the strips compare up against say the Cree 3590's, the CXM32 or the Vero29?

I find it really hard to compare if I can't use lumens. How many COBS does the board compare to?

 

[ZioFrancolino]

So these are all based on the Samsung 301B LED's. How would this board or the strips compare up against say the Cree 3590's, the CXM32 or the Vero29?

I find it really hard to compare if I can't use lumens.

Samsung lm301b has more lumens per Watt (223 lm/W)

 

[coreywebster]

I opted for 2 or 3 of the Samsung H-inFlux LM301B instead with a HLG-120H-48a or HLG-185H-48a respectively as it will be cheaper than buying the HLG pre-built board.

Now I am just looking for a European seller of the Samsung H-inFlux LM301B strip. (https://www.diyleduk.co.uk/product-page/samsung-h-influx-lm301b-light-engine only ships to UK apparently).

You can shout him out on here @diyled but will probably get a faster response from emailing him directly.

 

[dancingshrubbery]

Samsung lm301b has more lumens per Watt (223 lm/W)

Right. So the board outperforms the COB's at 2 or fewer COB's.

You can shout him out on here @diyled but will probably get a faster response from emailing him directly.

Thanks I mailed him. Although, it seems the german site might be cheaper.